7smr

Cryo-EM structure of Torpedo acetylcholine receptor in complex with carbachol, desensitized state

Method: ELECTRON MICROSCOPY D_max: 149.1 Å Quality: GOOD

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1. Protein Identity and Related Structures Protein Identity & Related Structures

Acetylcholine receptor subunit alpha

OrganismNot specified

State in the Current Structure

Assembly	Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Associated Components	Method and Experimental Conditions	Structure Quality
1	Other combination Heteromer Protein × 5 其他Polymer 5 PDB declaration: pentameric（5） Consistent with protein copy count	Chain A； UniProt 25–461 Chain D； UniProt 25–461	Not recorded	Acetylcholine receptor subunit delta × 1 （P02718） Acetylcholine receptor subunit beta × 1 （P02712） Acetylcholine receptor subunit gamma × 1 （P02714） ;alpha-D-mannopyranose-(1-6)-alpha-D-mannopyranose-(1-6)-beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose ; × 3 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose × 1 beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose × 1 CCE 2-[(AMINOCARBONYL)OXY]-N,N,N-TRIMETHYLETHANAMINIUM × 2 CLR CHOLESTEROL × 3 POV (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate × 6 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 2 DD9 nonane × 1	ELECTRON MICROSCOPY cryo-EM buffer：pH 7.4 cryo-EM vitrification conditions：Cryogen ETHANE	Resolution 2.77 Å

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

Other PDB	Difference from Current Entry 7SMR	Assembly / Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Non-polymers	Method and Experimental Conditions	Structure Quality
1ABT NMR SOLUTION STRUCTURE OF AN ALPHA-BUNGAROTOXIN(SLASH)NICOTINIC RECEPTOR PEPTIDE COMPLEX Deposited 1993-11-17	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain B 209–220（12 aa）	Not recorded	No recorded non-water small molecule	SOLUTION NMR mmCIF provides none of the parsed conditions	Resolution not provided
1DXZ M2 TRANSMEMBRANE SEGMENT OF ALPHA-SUBUNIT OF NICOTINIC ACETYLCHOLINE RECEPTOR FROM TORPEDO CALIFORNICA, NMR, 20 STRUCTURES Deposited 2000-01-20	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain A 260–291（32 aa） Fragment：M2 TRANSMEMBRANE SEGMENT	Non-standard monomer：Yes (specific site not provided by mmCIF)	No recorded non-water small molecule	SOLUTION NMR NMR measurement conditions pH 4；303 K；Ionic strength (raw mmCIF value) 0.1 M LICLO4；Pressure 1 NMR sample composition CDCL3/CD3OH=1/1 WITH 0.1 M LICLO4	Resolution not provided
1IDG THE NMR SOLUTION STRUCTURE OF THE COMPLEX FORMED BETWEEN ALPHA-BUNGAROTOXIN AND AN 18MER COGNATE PEPTIDE Deposited 2001-04-04	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain B 205–222（18 aa）	Non-standard monomer：Yes (specific site not provided by mmCIF)	No recorded non-water small molecule	SOLUTION NMR NMR measurement conditions pH 4；308 K；Pressure ambient NMR sample composition 2.1 mM alpha-Bungarotoxin/alpha18mer complex, alpha18mer is 15N labeled, 50 mM perdeuterated potassium acetate buffer (pH 4.0) with 5% D2O and 0.05% sodium azide \| 95% H2O/5% D2O	Resolution not provided
1IDH THE NMR SOLUTION STRUCTURE OF THE COMPLEX FORMED BETWEEN ALPHA-BUNGAROTOXIN AND AN 18MER COGNATE PEPTIDE Deposited 2001-04-04	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain B 205–222（18 aa）	Non-standard monomer：Yes (specific site not provided by mmCIF)	No recorded non-water small molecule	SOLUTION NMR NMR measurement conditions pH 4；308 K；Pressure ambient NMR sample composition 2.1 mM alpha-Bungarotoxin/alpha18mer complex, alpha18mer is 15N labeled, 50 mM perdeuterated potassium acetate buffer (pH 4.0) with 5% D2O and 0.05% sodium azide \| 95% H2O/5% D2O	Resolution not provided
1LXG Solution structure of alpha-cobratoxin complexed with a cognate peptide (structure ensemble) Deposited 2002-06-05	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain B 205–222（18 aa）	Non-standard monomer：Yes (specific site not provided by mmCIF)	No recorded non-water small molecule	SOLUTION NMR NMR measurement conditions pH 4；308 K；Pressure AMBIENT NMR sample composition 1.6 mM alpha-cobratoxin/alpha18-mer complex, alpha18-mer is U-15N, 50 mM perdeuterated potassium acetate buffer (pH 4.0) with 5% D2O and 0.05% sodium azide \| 95% H2O/5% D2O	Resolution not provided
1LXH Solution structure of alpha-cobratoxin complexed with a cognate peptide (minimized average structure) Deposited 2002-06-05	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain B 205–222（18 aa）	Non-standard monomer：Yes (specific site not provided by mmCIF)	No recorded non-water small molecule	SOLUTION NMR NMR measurement conditions pH 4；308 K；Ionic strength (raw mmCIF value) NULL；Pressure AMBIENT NMR sample composition 1.6 mM alpha-cobratoxin/alpha18-mer complex, alpha18-mer is U-15N, 50 mM perdeuterated potassium acetate buffer (pH 4.0) with 5% D2O and 0.05% sodium azide \| 95% H2O/5% D2O	Resolution not provided
1TOR MOLECULAR DYNAMICS SIMULATION FROM 2D-NMR DATA OF THE FREE ACHR MIR DECAPEPTIDE AND THE ANTIBODY-BOUND [A76]MIR ANALOGUE Deposited 1995-10-11	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain A 91–100（10 aa）	Not recorded	No recorded non-water small molecule	SOLUTION NMR mmCIF provides none of the parsed conditions	Resolution not provided
1TOS TORPEDO CALIFORNICA ACHR RECEPTOR [ALA76] ANALOGUE COMPLEXED WITH THE ANTI-ACETYLCHOLINE MAB6 MONOCLONAL ANTIBODY Deposited 1995-10-11	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain A 91–99（9 aa） Fragment：ALPHA 67-76 DOMAIN OF THE ACETYLCHOLINE RECEPTOR	Not recorded	No recorded non-water small molecule	SOLUTION NMR mmCIF provides none of the parsed conditions	Resolution not provided
3MRA M3 TRANSMEMBRANE SEGMENT OF ALPHA-SUBUNIT OF NICOTINIC ACETYLCHOLINE RECEPTOR FROM TORPEDO CALIFORNICA, NMR, 15 STRUCTURES Deposited 1997-07-15	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain A 301–325（25 aa） Fragment：M3 TRANSMEMBRANE SEGMENT	Not recorded	No recorded non-water small molecule	SOLUTION NMR NMR measurement conditions pH 3.5；303 K	Resolution not provided
6UWZ Cryo-EM structure of Torpedo acetylcholine receptor in complex with alpha-bungarotoxin Deposited 2019-11-06	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 7 PDB declaration: heptameric	Chain A 25–461（437 aa） Chain D 25–461（437 aa）	Not recorded	POV (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate × 5 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 3 OCT N-OCTANE × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.69 Å
7QKO Torpedo muscle-type nicotinic acetylcholine receptor - Resting conformation Deposited 2021-12-18	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 5 PDB declaration: pentameric	Chain A 25–461（437 aa） Chain D 25–461（437 aa）	Not recorded	POV (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate × 9	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.90 Å
7QL5 Torpedo muscle-type nicotinic acetylcholine receptor - nicotine-bound conformation Deposited 2021-12-19	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 5 PDB declaration: pentameric	Chain A 25–461（437 aa） Chain D 25–461（437 aa）	Not recorded	NCT (S)-3-(1-METHYLPYRROLIDIN-2-YL)PYRIDINE × 2 POV (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate × 11 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.50 Å
7QL6 Torpedo muscle-type nicotinic acetylcholine receptor - carbamylcholine-bound conformation Deposited 2021-12-19	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 5 PDB declaration: pentameric	Chain A 25–461（437 aa） Chain D 25–461（437 aa）	Not recorded	CCE 2-[(AMINOCARBONYL)OXY]-N,N,N-TRIMETHYLETHANAMINIUM × 2 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.23 Å
7SMM Cryo-EM structure of Torpedo acetylcholine receptor in apo form Deposited 2021-10-26	Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 5 PDB declaration: pentameric	Chain A 25–461（437 aa） Chain D 25–461（437 aa）	Not recorded	POV (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate × 8 CLR CHOLESTEROL × 3 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 3 DD9 nonane × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.50 Å
7SMQ Cryo-EM structure of Torpedo acetylcholine receptor in apo form with added cholesterol Deposited 2021-10-26	Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 5 PDB declaration: pentameric	Chain A 25–461（437 aa） Chain D 25–461（437 aa）	Not recorded	POV (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate × 8 CLR CHOLESTEROL × 11 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 3 DD9 nonane × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.74 Å
7SMS Cryo-EM structure of Torpedo acetylcholine receptor in complex with d-tubocurarine Deposited 2021-10-26	Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 5 PDB declaration: pentameric	Chain A 25–461（437 aa） Chain D 25–461（437 aa）	Not recorded	CLR CHOLESTEROL × 3 TC9 D-TUBOCURARINE × 4 POV (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate × 5	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.18 Å
7SMT Cryo-EM structure of Torpedo acetylcholine receptor in complex with d-tubocurarine and carbachol Deposited 2021-10-26	Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 5 PDB declaration: pentameric	Chain A 25–461（437 aa） Chain D 25–461（437 aa）	Not recorded	CCE 2-[(AMINOCARBONYL)OXY]-N,N,N-TRIMETHYLETHANAMINIUM × 1 CLR CHOLESTEROL × 3 POV (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate × 5 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 2 DD9 nonane × 1 TC9 D-TUBOCURARINE × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.56 Å
7Z14 Cryo-EM structure of Torpedo nicotinic acetylcholine receptor in complex with a short-chain neurotoxin. Deposited 2022-02-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 7 PDB declaration: heptameric	Chain A 25–461（437 aa） Chain D 25–461（437 aa）	Not recorded	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.15 Å
8ESK Cryo-EM structure of Torpedo nicotinic acetylcholine receptor in complex with rocuronium, resting-like state Deposited 2022-10-14	Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 5 PDB declaration: pentameric	Chain A 25–461（437 aa） Chain D 25–461（437 aa）	Not recorded	RBR rocuronium × 2 POV (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate × 8 CLR CHOLESTEROL × 3 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 3	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.90 Å
8F2S Cryo-EM structure of Torpedo nicotinic acetylcholine receptor in complex with rocuronium, pore-blocked state Deposited 2022-11-08	Different construct Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 5 PDB declaration: pentameric	Chain A 25–457（433 aa） Chain D 25–457（433 aa）	Not recorded	RBR rocuronium × 3 POV (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate × 6 CLR CHOLESTEROL × 3 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 3 DD9 nonane × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.90 Å
8F6Y Cryo-EM structure of Torpedo nicotinic acetylcholine receptor in complex with etomidate, desensitized-like state Deposited 2022-11-17	Different construct Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 5 PDB declaration: pentameric	Chain A 25–457（433 aa） Chain D 25–457（433 aa）	Not recorded	V8D Etomidate × 2 CHT CHOLINE ION × 2 CLR CHOLESTEROL × 3 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 2 POV (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate × 6 DD9 nonane × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.79 Å
8F6Z Cryo-EM structure of Torpedo nicotinic acetylcholine receptor in complex with succinylcholine, desensitized-like state Deposited 2022-11-17	Different construct Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 5 PDB declaration: pentameric	Chain A 25–457（433 aa） Chain D 25–457（433 aa）	Not recorded	SCK 2,2'-[(1,4-DIOXOBUTANE-1,4-DIYL)BIS(OXY)]BIS(N,N,N-TRIMETHYLETHANAMINIUM) × 2 CLR CHOLESTEROL × 3 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 2 POV (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate × 5 DD9 nonane × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.70 Å
8QQM nicotinic acetylcholine receptor in intact synaptic membrane Deposited 2023-10-05	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 5 PDB declaration: pentameric	Chain A 25–461（437 aa） Chain D 25–461（437 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.70 Å
8YQN Torpedo acetylcholine receptor in complex with Erabutoxin A Deposited 2024-03-19	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 7 PDB declaration: heptameric	Chain A 25–461（437 aa） Chain D 25–461（437 aa）	Not recorded	POV (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate × 4 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 3 OCT N-OCTANE × 1 PLM PALMITIC ACID × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.27 Å
9E3E Torpedo muscle-type nicotinic acetylcholine receptor - Diliganded State Deposited 2024-10-23	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 5 PDB declaration: pentameric	Chain A 25–461（437 aa） Chain D 25–461（437 aa）	Not recorded	ACH ACETYLCHOLINE × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.80 Å
9E3F Torpedo muscle-type nicotinic acetylcholine receptor - Unliganded State Deposited 2024-10-23	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 5 PDB declaration: pentameric	Chain A 25–461（437 aa） Chain D 25–461（437 aa）	Not recorded	POV (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.20 Å
9E3G Torpedo muscle-type nicotinic acetylcholine receptor - Monoliganded State Deposited 2024-10-23	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 5 PDB declaration: pentameric	Chain A 25–461（437 aa） Chain D 25–461（437 aa）	Not recorded	ACH ACETYLCHOLINE × 1 POV (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate × 5	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4；This map comes from particles from five datasets recorded in the presence of five sub-saturating concentrations of acetylcholine: 20, 50, 100, 250, and 500 nM. cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.13 Å
9NX2 Muscle-type nicotinic acetylcholine receptor bound to conotoxin ImII Deposited 2025-03-25	Different construct Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 7 PDB declaration: heptameric	Chain A 25–458（434 aa） Chain D 25–458（434 aa）	Not recorded	CCE 2-[(AMINOCARBONYL)OXY]-N,N,N-TRIMETHYLETHANAMINIUM × 2 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.96 Å

28 other PDB entries and 28 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence

UniProt name	ACHA_TETCF
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–437； UniProt 25–461 Author chain D； PDBConstruct 1–437； UniProt 25–461

Acetylcholine receptor subunit delta

OrganismNot specified

UniProt P02718

State in the Current Structure

Assembly	Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Associated Components	Method and Experimental Conditions	Structure Quality
1	Other combination Heteromer Protein × 5 其他Polymer 5 PDB declaration: pentameric（5） Consistent with protein copy count	Chain B； UniProt 22–522	Not recorded	Acetylcholine receptor subunit alpha × 2 （P02710） Acetylcholine receptor subunit beta × 1 （P02712） Acetylcholine receptor subunit gamma × 1 （P02714） ;alpha-D-mannopyranose-(1-6)-alpha-D-mannopyranose-(1-6)-beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose ; × 3 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose × 1 beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose × 1 CCE 2-[(AMINOCARBONYL)OXY]-N,N,N-TRIMETHYLETHANAMINIUM × 2 CLR CHOLESTEROL × 3 POV (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate × 6 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 2 DD9 nonane × 1	ELECTRON MICROSCOPY cryo-EM buffer：pH 7.4 cryo-EM vitrification conditions：Cryogen ETHANE	Resolution 2.77 Å

Other States of the Same Protein in the Database

Other PDB	Difference from Current Entry 7SMR	Assembly / Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Non-polymers	Method and Experimental Conditions	Structure Quality
1EQ8 THREE-DIMENSIONAL STRUCTURE OF THE PENTAMERIC HELICAL BUNDLE OF THE ACETYLCHOLINE RECEPTOR M2 TRANSMEMBRANE SEGMENT Deposited 2000-04-03	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein homooligomer Homooligomer；Protein × 5 PDB declaration: pentameric	Chain A 276–298（23 aa） Fragment：M2 SEGMENT Chain B 276–298（23 aa） Fragment：M2 SEGMENT Chain C 276–298（23 aa） Fragment：M2 SEGMENT Chain D 276–298（23 aa） Fragment：M2 SEGMENT Chain E 276–298（23 aa） Fragment：M2 SEGMENT	Not recorded	No recorded non-water small molecule	SOLID-STATE NMR NMR measurement conditions pH 5.5；303 K；Pressure ambient NMR measurement conditions pH 5.5；298 K；Pressure ambient NMR sample composition 1mM M2 U-15N; 350mM DPC; pH5.5; \| 90% H2O/10% D2O NMR sample composition 20mg M2 U-15N; 40mg DMPC; \| DMPC bilayers in H2O;	Resolution not provided
6UWZ Cryo-EM structure of Torpedo acetylcholine receptor in complex with alpha-bungarotoxin Deposited 2019-11-06	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 7 PDB declaration: heptameric	Chain B 22–522（501 aa）	Not recorded	POV (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate × 5 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 3 OCT N-OCTANE × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.69 Å
7QKO Torpedo muscle-type nicotinic acetylcholine receptor - Resting conformation Deposited 2021-12-18	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 5 PDB declaration: pentameric	Chain C 22–522（501 aa）	Not recorded	POV (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate × 9	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.90 Å
7QL5 Torpedo muscle-type nicotinic acetylcholine receptor - nicotine-bound conformation Deposited 2021-12-19	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 5 PDB declaration: pentameric	Chain C 22–522（501 aa）	Not recorded	NCT (S)-3-(1-METHYLPYRROLIDIN-2-YL)PYRIDINE × 2 POV (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate × 11 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.50 Å
7QL6 Torpedo muscle-type nicotinic acetylcholine receptor - carbamylcholine-bound conformation Deposited 2021-12-19	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 5 PDB declaration: pentameric	Chain C 22–522（501 aa）	Not recorded	CCE 2-[(AMINOCARBONYL)OXY]-N,N,N-TRIMETHYLETHANAMINIUM × 2 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.23 Å
7SMM Cryo-EM structure of Torpedo acetylcholine receptor in apo form Deposited 2021-10-26	Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 5 PDB declaration: pentameric	Chain B 22–522（501 aa）	Not recorded	POV (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate × 8 CLR CHOLESTEROL × 3 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 3 DD9 nonane × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.50 Å
7SMQ Cryo-EM structure of Torpedo acetylcholine receptor in apo form with added cholesterol Deposited 2021-10-26	Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 5 PDB declaration: pentameric	Chain B 22–522（501 aa）	Not recorded	POV (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate × 8 CLR CHOLESTEROL × 11 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 3 DD9 nonane × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.74 Å
7SMS Cryo-EM structure of Torpedo acetylcholine receptor in complex with d-tubocurarine Deposited 2021-10-26	Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 5 PDB declaration: pentameric	Chain B 22–522（501 aa）	Not recorded	CLR CHOLESTEROL × 3 TC9 D-TUBOCURARINE × 4 POV (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate × 5	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.18 Å
7SMT Cryo-EM structure of Torpedo acetylcholine receptor in complex with d-tubocurarine and carbachol Deposited 2021-10-26	Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 5 PDB declaration: pentameric	Chain B 22–522（501 aa）	Not recorded	CCE 2-[(AMINOCARBONYL)OXY]-N,N,N-TRIMETHYLETHANAMINIUM × 1 CLR CHOLESTEROL × 3 POV (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate × 5 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 2 DD9 nonane × 1 TC9 D-TUBOCURARINE × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.56 Å
7Z14 Cryo-EM structure of Torpedo nicotinic acetylcholine receptor in complex with a short-chain neurotoxin. Deposited 2022-02-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 7 PDB declaration: heptameric	Chain C 22–522（501 aa）	Not recorded	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.15 Å
8ESK Cryo-EM structure of Torpedo nicotinic acetylcholine receptor in complex with rocuronium, resting-like state Deposited 2022-10-14	Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 5 PDB declaration: pentameric	Chain B 22–522（501 aa）	Not recorded	RBR rocuronium × 2 POV (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate × 8 CLR CHOLESTEROL × 3 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 3	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.90 Å
8F2S Cryo-EM structure of Torpedo nicotinic acetylcholine receptor in complex with rocuronium, pore-blocked state Deposited 2022-11-08	Different construct Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 5 PDB declaration: pentameric	Chain B 22–521（500 aa）	Not recorded	RBR rocuronium × 3 POV (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate × 6 CLR CHOLESTEROL × 3 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 3 DD9 nonane × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.90 Å
8F6Y Cryo-EM structure of Torpedo nicotinic acetylcholine receptor in complex with etomidate, desensitized-like state Deposited 2022-11-17	Different construct Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 5 PDB declaration: pentameric	Chain B 22–521（500 aa）	Not recorded	V8D Etomidate × 2 CHT CHOLINE ION × 2 CLR CHOLESTEROL × 3 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 2 POV (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate × 6 DD9 nonane × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.79 Å
8F6Z Cryo-EM structure of Torpedo nicotinic acetylcholine receptor in complex with succinylcholine, desensitized-like state Deposited 2022-11-17	Different construct Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 5 PDB declaration: pentameric	Chain B 22–521（500 aa）	Not recorded	SCK 2,2'-[(1,4-DIOXOBUTANE-1,4-DIYL)BIS(OXY)]BIS(N,N,N-TRIMETHYLETHANAMINIUM) × 2 CLR CHOLESTEROL × 3 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 2 POV (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate × 5 DD9 nonane × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.70 Å
8QQM nicotinic acetylcholine receptor in intact synaptic membrane Deposited 2023-10-05	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 5 PDB declaration: pentameric	Chain B 22–522（501 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.70 Å
8YQN Torpedo acetylcholine receptor in complex with Erabutoxin A Deposited 2024-03-19	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 7 PDB declaration: heptameric	Chain B 22–522（501 aa）	Not recorded	POV (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate × 4 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 3 OCT N-OCTANE × 1 PLM PALMITIC ACID × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.27 Å
9E3E Torpedo muscle-type nicotinic acetylcholine receptor - Diliganded State Deposited 2024-10-23	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 5 PDB declaration: pentameric	Chain C 22–522（501 aa）	Not recorded	ACH ACETYLCHOLINE × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.80 Å
9E3F Torpedo muscle-type nicotinic acetylcholine receptor - Unliganded State Deposited 2024-10-23	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 5 PDB declaration: pentameric	Chain C 22–522（501 aa）	Not recorded	POV (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.20 Å
9E3G Torpedo muscle-type nicotinic acetylcholine receptor - Monoliganded State Deposited 2024-10-23	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 5 PDB declaration: pentameric	Chain C 22–522（501 aa）	Not recorded	ACH ACETYLCHOLINE × 1 POV (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate × 5	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4；This map comes from particles from five datasets recorded in the presence of five sub-saturating concentrations of acetylcholine: 20, 50, 100, 250, and 500 nM. cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.13 Å
9NX2 Muscle-type nicotinic acetylcholine receptor bound to conotoxin ImII Deposited 2025-03-25	Different construct Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 7 PDB declaration: heptameric	Chain B 23–521（499 aa）	Not recorded	CCE 2-[(AMINOCARBONYL)OXY]-N,N,N-TRIMETHYLETHANAMINIUM × 2 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.96 Å

20 other PDB entries and 20 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence

UniProt name	ACHD_TETCF
Isoform	—
PDB entities	2
Chains and sequence ranges	Author chain B； PDBConstruct 1–501； UniProt 22–522

Acetylcholine receptor subunit beta

OrganismNot specified

UniProt P02712

State in the Current Structure

Assembly	Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Associated Components	Method and Experimental Conditions	Structure Quality
1	Other combination Heteromer Protein × 5 其他Polymer 5 PDB declaration: pentameric（5） Consistent with protein copy count	Chain C； UniProt 25–493	Not recorded	Acetylcholine receptor subunit alpha × 2 （P02710） Acetylcholine receptor subunit delta × 1 （P02718） Acetylcholine receptor subunit gamma × 1 （P02714） ;alpha-D-mannopyranose-(1-6)-alpha-D-mannopyranose-(1-6)-beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose ; × 3 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose × 1 beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose × 1 CCE 2-[(AMINOCARBONYL)OXY]-N,N,N-TRIMETHYLETHANAMINIUM × 2 CLR CHOLESTEROL × 3 POV (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate × 6 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 2 DD9 nonane × 1	ELECTRON MICROSCOPY cryo-EM buffer：pH 7.4 cryo-EM vitrification conditions：Cryogen ETHANE	Resolution 2.77 Å

Other States of the Same Protein in the Database

Other PDB	Difference from Current Entry 7SMR	Assembly / Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Non-polymers	Method and Experimental Conditions	Structure Quality
6UWZ Cryo-EM structure of Torpedo acetylcholine receptor in complex with alpha-bungarotoxin Deposited 2019-11-06	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 7 PDB declaration: heptameric	Chain C 25–493（469 aa）	Not recorded	POV (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate × 5 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 3 OCT N-OCTANE × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.69 Å
7QKO Torpedo muscle-type nicotinic acetylcholine receptor - Resting conformation Deposited 2021-12-18	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 5 PDB declaration: pentameric	Chain B 25–493（469 aa）	Not recorded	POV (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate × 9	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.90 Å
7QL5 Torpedo muscle-type nicotinic acetylcholine receptor - nicotine-bound conformation Deposited 2021-12-19	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 5 PDB declaration: pentameric	Chain B 25–493（469 aa）	Not recorded	NCT (S)-3-(1-METHYLPYRROLIDIN-2-YL)PYRIDINE × 2 POV (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate × 11 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.50 Å
7QL6 Torpedo muscle-type nicotinic acetylcholine receptor - carbamylcholine-bound conformation Deposited 2021-12-19	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 5 PDB declaration: pentameric	Chain B 25–493（469 aa）	Not recorded	CCE 2-[(AMINOCARBONYL)OXY]-N,N,N-TRIMETHYLETHANAMINIUM × 2 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.23 Å
7SMM Cryo-EM structure of Torpedo acetylcholine receptor in apo form Deposited 2021-10-26	Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 5 PDB declaration: pentameric	Chain C 25–493（469 aa）	Not recorded	POV (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate × 8 CLR CHOLESTEROL × 3 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 3 DD9 nonane × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.50 Å
7SMQ Cryo-EM structure of Torpedo acetylcholine receptor in apo form with added cholesterol Deposited 2021-10-26	Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 5 PDB declaration: pentameric	Chain C 25–493（469 aa）	Not recorded	POV (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate × 8 CLR CHOLESTEROL × 11 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 3 DD9 nonane × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.74 Å
7SMS Cryo-EM structure of Torpedo acetylcholine receptor in complex with d-tubocurarine Deposited 2021-10-26	Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 5 PDB declaration: pentameric	Chain C 25–493（469 aa）	Not recorded	CLR CHOLESTEROL × 3 TC9 D-TUBOCURARINE × 4 POV (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate × 5	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.18 Å
7SMT Cryo-EM structure of Torpedo acetylcholine receptor in complex with d-tubocurarine and carbachol Deposited 2021-10-26	Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 5 PDB declaration: pentameric	Chain C 25–493（469 aa）	Not recorded	CCE 2-[(AMINOCARBONYL)OXY]-N,N,N-TRIMETHYLETHANAMINIUM × 1 CLR CHOLESTEROL × 3 POV (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate × 5 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 2 DD9 nonane × 1 TC9 D-TUBOCURARINE × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.56 Å
7Z14 Cryo-EM structure of Torpedo nicotinic acetylcholine receptor in complex with a short-chain neurotoxin. Deposited 2022-02-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 7 PDB declaration: heptameric	Chain B 25–493（469 aa）	Not recorded	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.15 Å
8ESK Cryo-EM structure of Torpedo nicotinic acetylcholine receptor in complex with rocuronium, resting-like state Deposited 2022-10-14	Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 5 PDB declaration: pentameric	Chain C 25–493（469 aa）	Not recorded	RBR rocuronium × 2 POV (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate × 8 CLR CHOLESTEROL × 3 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 3	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.90 Å
8F2S Cryo-EM structure of Torpedo nicotinic acetylcholine receptor in complex with rocuronium, pore-blocked state Deposited 2022-11-08	Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 5 PDB declaration: pentameric	Chain C 25–493（469 aa）	Not recorded	RBR rocuronium × 3 POV (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate × 6 CLR CHOLESTEROL × 3 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 3 DD9 nonane × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.90 Å
8F6Y Cryo-EM structure of Torpedo nicotinic acetylcholine receptor in complex with etomidate, desensitized-like state Deposited 2022-11-17	Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 5 PDB declaration: pentameric	Chain C 25–493（469 aa）	Not recorded	V8D Etomidate × 2 CHT CHOLINE ION × 2 CLR CHOLESTEROL × 3 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 2 POV (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate × 6 DD9 nonane × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.79 Å
8F6Z Cryo-EM structure of Torpedo nicotinic acetylcholine receptor in complex with succinylcholine, desensitized-like state Deposited 2022-11-17	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 5 PDB declaration: pentameric	Chain C 25–493（469 aa）	Not recorded	SCK 2,2'-[(1,4-DIOXOBUTANE-1,4-DIYL)BIS(OXY)]BIS(N,N,N-TRIMETHYLETHANAMINIUM) × 2 CLR CHOLESTEROL × 3 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 2 POV (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate × 5 DD9 nonane × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.70 Å
8QQM nicotinic acetylcholine receptor in intact synaptic membrane Deposited 2023-10-05	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 5 PDB declaration: pentameric	Chain C 25–493（469 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.70 Å
8YQN Torpedo acetylcholine receptor in complex with Erabutoxin A Deposited 2024-03-19	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 7 PDB declaration: heptameric	Chain C 25–493（469 aa）	Not recorded	POV (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate × 4 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 3 OCT N-OCTANE × 1 PLM PALMITIC ACID × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.27 Å
9E3E Torpedo muscle-type nicotinic acetylcholine receptor - Diliganded State Deposited 2024-10-23	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 5 PDB declaration: pentameric	Chain B 25–493（469 aa）	Not recorded	ACH ACETYLCHOLINE × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.80 Å
9E3F Torpedo muscle-type nicotinic acetylcholine receptor - Unliganded State Deposited 2024-10-23	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 5 PDB declaration: pentameric	Chain B 25–493（469 aa）	Not recorded	POV (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.20 Å
9E3G Torpedo muscle-type nicotinic acetylcholine receptor - Monoliganded State Deposited 2024-10-23	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 5 PDB declaration: pentameric	Chain B 25–493（469 aa）	Not recorded	ACH ACETYLCHOLINE × 1 POV (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate × 5	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4；This map comes from particles from five datasets recorded in the presence of five sub-saturating concentrations of acetylcholine: 20, 50, 100, 250, and 500 nM. cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.13 Å
9NX2 Muscle-type nicotinic acetylcholine receptor bound to conotoxin ImII Deposited 2025-03-25	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 7 PDB declaration: heptameric	Chain C 25–493（469 aa）	Not recorded	CCE 2-[(AMINOCARBONYL)OXY]-N,N,N-TRIMETHYLETHANAMINIUM × 2 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.96 Å

19 other PDB entries and 19 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence

UniProt name	ACHB_TETCF
Isoform	—
PDB entities	3
Chains and sequence ranges	Author chain C； PDBConstruct 1–469； UniProt 25–493

Acetylcholine receptor subunit gamma

OrganismNot specified

UniProt P02714

State in the Current Structure

Assembly	Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Associated Components	Method and Experimental Conditions	Structure Quality
1	Other combination Heteromer Protein × 5 其他Polymer 5 PDB declaration: pentameric（5） Consistent with protein copy count	Chain E； UniProt 18–506	Not recorded	Acetylcholine receptor subunit alpha × 2 （P02710） Acetylcholine receptor subunit delta × 1 （P02718） Acetylcholine receptor subunit beta × 1 （P02712） ;alpha-D-mannopyranose-(1-6)-alpha-D-mannopyranose-(1-6)-beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose ; × 3 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose × 1 beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose × 1 CCE 2-[(AMINOCARBONYL)OXY]-N,N,N-TRIMETHYLETHANAMINIUM × 2 CLR CHOLESTEROL × 3 POV (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate × 6 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 2 DD9 nonane × 1	ELECTRON MICROSCOPY cryo-EM buffer：pH 7.4 cryo-EM vitrification conditions：Cryogen ETHANE	Resolution 2.77 Å

Other States of the Same Protein in the Database

Other PDB	Difference from Current Entry 7SMR	Assembly / Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Non-polymers	Method and Experimental Conditions	Structure Quality
6UWZ Cryo-EM structure of Torpedo acetylcholine receptor in complex with alpha-bungarotoxin Deposited 2019-11-06	Different mutation/modification Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 7 PDB declaration: heptameric	Chain E 18–506（489 aa）	Non-standard monomer：Yes (specific site not provided by mmCIF)	POV (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate × 5 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 3 OCT N-OCTANE × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.69 Å
7QKO Torpedo muscle-type nicotinic acetylcholine receptor - Resting conformation Deposited 2021-12-18	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 5 PDB declaration: pentameric	Chain E 18–506（489 aa）	Not recorded	POV (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate × 9	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.90 Å
7QL5 Torpedo muscle-type nicotinic acetylcholine receptor - nicotine-bound conformation Deposited 2021-12-19	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 5 PDB declaration: pentameric	Chain E 18–506（489 aa）	Not recorded	NCT (S)-3-(1-METHYLPYRROLIDIN-2-YL)PYRIDINE × 2 POV (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate × 11 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.50 Å
7QL6 Torpedo muscle-type nicotinic acetylcholine receptor - carbamylcholine-bound conformation Deposited 2021-12-19	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 5 PDB declaration: pentameric	Chain E 18–506（489 aa）	Not recorded	CCE 2-[(AMINOCARBONYL)OXY]-N,N,N-TRIMETHYLETHANAMINIUM × 2 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.23 Å
7SMM Cryo-EM structure of Torpedo acetylcholine receptor in apo form Deposited 2021-10-26	Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 5 PDB declaration: pentameric	Chain E 18–506（489 aa）	Not recorded	POV (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate × 8 CLR CHOLESTEROL × 3 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 3 DD9 nonane × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.50 Å
7SMQ Cryo-EM structure of Torpedo acetylcholine receptor in apo form with added cholesterol Deposited 2021-10-26	Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 5 PDB declaration: pentameric	Chain E 18–506（489 aa）	Not recorded	POV (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate × 8 CLR CHOLESTEROL × 11 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 3 DD9 nonane × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.74 Å
7SMS Cryo-EM structure of Torpedo acetylcholine receptor in complex with d-tubocurarine Deposited 2021-10-26	Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 5 PDB declaration: pentameric	Chain E 18–506（489 aa）	Not recorded	CLR CHOLESTEROL × 3 TC9 D-TUBOCURARINE × 4 POV (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate × 5	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.18 Å
7SMT Cryo-EM structure of Torpedo acetylcholine receptor in complex with d-tubocurarine and carbachol Deposited 2021-10-26	Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 5 PDB declaration: pentameric	Chain E 18–506（489 aa）	Not recorded	CCE 2-[(AMINOCARBONYL)OXY]-N,N,N-TRIMETHYLETHANAMINIUM × 1 CLR CHOLESTEROL × 3 POV (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate × 5 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 2 DD9 nonane × 1 TC9 D-TUBOCURARINE × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.56 Å
7Z14 Cryo-EM structure of Torpedo nicotinic acetylcholine receptor in complex with a short-chain neurotoxin. Deposited 2022-02-24	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 7 PDB declaration: heptameric	Chain E 18–506（489 aa）	Not recorded	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.15 Å
8ESK Cryo-EM structure of Torpedo nicotinic acetylcholine receptor in complex with rocuronium, resting-like state Deposited 2022-10-14	Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 5 PDB declaration: pentameric	Chain E 18–506（489 aa）	Not recorded	RBR rocuronium × 2 POV (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate × 8 CLR CHOLESTEROL × 3 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 3	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.90 Å
8F2S Cryo-EM structure of Torpedo nicotinic acetylcholine receptor in complex with rocuronium, pore-blocked state Deposited 2022-11-08	Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 5 PDB declaration: pentameric	Chain E 18–506（489 aa）	Not recorded	RBR rocuronium × 3 POV (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate × 6 CLR CHOLESTEROL × 3 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 3 DD9 nonane × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.90 Å
8F6Y Cryo-EM structure of Torpedo nicotinic acetylcholine receptor in complex with etomidate, desensitized-like state Deposited 2022-11-17	Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 5 PDB declaration: pentameric	Chain E 18–506（489 aa）	Not recorded	V8D Etomidate × 2 CHT CHOLINE ION × 2 CLR CHOLESTEROL × 3 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 2 POV (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate × 6 DD9 nonane × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.79 Å
8F6Z Cryo-EM structure of Torpedo nicotinic acetylcholine receptor in complex with succinylcholine, desensitized-like state Deposited 2022-11-17	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 5 PDB declaration: pentameric	Chain E 18–506（489 aa）	Not recorded	SCK 2,2'-[(1,4-DIOXOBUTANE-1,4-DIYL)BIS(OXY)]BIS(N,N,N-TRIMETHYLETHANAMINIUM) × 2 CLR CHOLESTEROL × 3 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 2 POV (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate × 5 DD9 nonane × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.70 Å
8QQM nicotinic acetylcholine receptor in intact synaptic membrane Deposited 2023-10-05	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 5 PDB declaration: pentameric	Chain E 18–506（489 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.70 Å
8YQN Torpedo acetylcholine receptor in complex with Erabutoxin A Deposited 2024-03-19	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 7 PDB declaration: heptameric	Chain E 18–506（489 aa）	Not recorded	POV (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate × 4 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 3 OCT N-OCTANE × 1 PLM PALMITIC ACID × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.27 Å
9E3E Torpedo muscle-type nicotinic acetylcholine receptor - Diliganded State Deposited 2024-10-23	Different construct Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 5 PDB declaration: pentameric	Chain E 19–506（488 aa）	Not recorded	ACH ACETYLCHOLINE × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.80 Å
9E3F Torpedo muscle-type nicotinic acetylcholine receptor - Unliganded State Deposited 2024-10-23	Different construct Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 5 PDB declaration: pentameric	Chain E 19–506（488 aa）	Not recorded	POV (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.20 Å
9E3G Torpedo muscle-type nicotinic acetylcholine receptor - Monoliganded State Deposited 2024-10-23	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 5 PDB declaration: pentameric	Chain E 19–506（488 aa）	Not recorded	ACH ACETYLCHOLINE × 1 POV (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate × 5	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4；This map comes from particles from five datasets recorded in the presence of five sub-saturating concentrations of acetylcholine: 20, 50, 100, 250, and 500 nM. cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.13 Å
9NX2 Muscle-type nicotinic acetylcholine receptor bound to conotoxin ImII Deposited 2025-03-25	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 7 PDB declaration: heptameric	Chain E 18–506（489 aa）	Not recorded	CCE 2-[(AMINOCARBONYL)OXY]-N,N,N-TRIMETHYLETHANAMINIUM × 2 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.96 Å

19 other PDB entries and 19 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence

UniProt name	ACHG_TETCF
Isoform	—
PDB entities	4
Chains and sequence ranges	Author chain E； PDBConstruct 1–489； UniProt 18–506

The page prioritizes protein identity, the current assembly, associated components, oligomeric state and cross-PDB links. Chain mapping and sequence ranges are retained as data evidence. Internal IDs, import timestamps and assembly operation expressions are maintenance fields and are not shown here.

SAXS scattering curve SAXS Profile

P(r) Distance Distribution P(r) Distribution

Download Download SAXS (.dat) P(r) (.pr.out) CIF

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2. Structure Basics 2. Structure Basics

Entry ID entry_id	7smr
Deposition date deposition_date	2021-10-26
Structure title title	Cryo-EM structure of Torpedo acetylcholine receptor in complex with carbachol, desensitized state
Keywords keywords	;acetylcholine receptor, nicotinic receptor, Torpedo, Cys-loop receptor, ion channel, muscle-type nicotinic receptor, TRANSPORT PROTEIN ;; TRANSPORT PROTEIN
Experimental Method method	ELECTRON MICROSCOPY

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3. SAXS Parameters (CRYSOL theoretical calculation) 3. SAXS Parameters (CRYSOL)

Radius of gyration Rg (Guinier) rg_guinier	44.28 Å
Radius of gyration Rg (electron density) rg_electron	43.58 Å
Forward intensity I(0) i0	730899000.00
Molecular weight molecular_weight	241320.0 kDa
Excluded volume excluded_volume	309230 Å³
Envelope volume envelope_volume	395530 Å³
Hydration-shell volume shell_volume	75876 Å³
Envelope diameter envelope_diameter	161.0 Å
Shell Rg shell_rg	48.57 Å
Envelope Rg envelope_rg	43.58 Å
Shape Rg shape_rg	43.60 Å
Total Rg total_rg	43.76 Å
Total atoms total_atoms	17016
Residues n_residues	2022
Spherical-harmonic order n_harmonics	20
q range q_range	— – 0.5000 Å⁻¹
Data points n_points	101
Shell type shell_type	directional
Solvent electron density solvent_density	0.3340 e/Å³
Shell contrast contrast_shell	0.0300 e/Å³
CRYSOL version crysol_version	4.1.3

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4. P(r) Distance Distribution (GNOM inversion) 4. P(r) Analysis (GNOM)

Maximum dimension Dmax dmax	149.1 Å
Rg (real space) rg_real	44.48 Å
Rg uncertainty (real space) rg_real_error	1.11 Å
I(0) (real space) i0_real	7.3090e+08
I(0) uncertainty (real space) i0_real_error	1.2670e+07
Rg (reciprocal space) rg_reciprocal	44.28 Å
I(0) (reciprocal space) i0_reciprocal	730700000.0000
Solution quality estimate total_estimate	0.8438
Solution quality rating solution_quality	GOOD a GOOD solution
P(r) peaks n_peaks	2
Primary peak position r_peak_primary	49.7 Å
Skewness Skewness skewness	0.546
Kurtosis Kurtosis kurtosis	-0.089
Angular range angular_range	— – 0.1800 Å⁻¹
Current regularization parameter α current_alpha	0.0000
Highest regularization parameter α highest_alpha	110400000.0000
Real-space data points n_real_points	37
GNOM version gnom_version	4.1.3
Quality Criteria quality_criteria	AN1: 0.000; Oscil: 0.753; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.993; Smooth: 0.714

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5. Crystallography and Experiment 5. Crystallography & Experiment

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6. Entities and Polymers Entities & Polymers (13)

Entity 1 Entity 1 polymer

Description description	Acetylcholine receptor subunit alpha
Molecular weight formula_weight	50168.2 kDa
Source method src_method	nat
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,D
Atom count atom_count	17037

SEHETRLVANLLENYNKVIRPVEHHTHFVDITVGLQLIQLISVDEVNQIVETNVRLRQQWIDVRLRWNPADYGGIKKIRLPSDDVWLPDLVLYNNADGDFAIVHMTKLLLDYTGKIMWTPPAIFKSYCEIIVTHFPFDQQNCTMKLGIWTYDGTKVSISPESDRPDLSTFMESGEWVMKDYRGWKHWVYYTCCPDTPYLDITYHFIMQRIPLYFVVNVIIPCLLFSFLTGLVFYLPTDSGEKMTLSISVLLSLTVFLLVIVELIPSTSSAVPLIGKYMLFTMIFVISSIIITVVVINTHHRSPSTHTMPQWVRKIFIDTIPNVMFFSTMKRASKEKQENKIFADDIDISDISGKQVTGEVIFQTPLIKNPDVKSAIEGVKYIAEHMKSDEESSNAAEEWKYVAMVIDHILLCVFMLICIIGTVSVFAGRLIELSQEG

Entity 2 Entity 2 polymer

Description description	Acetylcholine receptor subunit delta
Molecular weight formula_weight	57625.7 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	B

VNEEERLINDLLIVNKYNKHVRPVKHNNEVVNIALSLTLSNLISLKETDETLTSNVWMDHAWYDHRLTWNASEYSDISILRLPPELVWIPDIVLQNNNDGQYHVAYFCNVLVRPNGYVTWLPPAIFRSSCPINVLYFPFDWQNCSLKFTALNYDANEITMDLMTDTIDGKDYPIEWIIIDPEAFTENGEWEIIHKPAKKNIYPDKFPNGTNYQDVTFYLIIRRKPLFYVINFITPCVLISFLASLAFYLPAESGEKMSTAISVLLAQAVFLLLTSQRLPETALAVPLIGKYLMFIMSLVTGVIVNCGIVLNFHFRTPSTHVLSTRVKQIFLEKLPRILHMSRADESEQPDWQNDLKLRRSSSVGYISKAQEYFNIKSRSELMFEKQSERHGLVPRVTPRIGFGNNNENIAASDQLHDEIKSGIDSTNYIVKQIKEKNAYDEEVGNWNLVGQTIDRLSMFIITPVMVLGTIFIFVMGNFNHPPAKPFEGDPFDYSSDHPRCA

Entity 3 Entity 3 polymer

Description description	Acetylcholine receptor subunit beta
Molecular weight formula_weight	53731.8 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	C

SVMEDTLLSVLFETYNPKVRPAQTVGDKVTVRVGLTLTNLLILNEKIEEMTTNVFLNLAWTDYRLQWDPAAYEGIKDLRIPSSDVWQPDIVLMNNNDGSFEITLHVNVLVQHTGAVSWQPSAIYRSSCTIKVMYFPFDWQNCTMVFKSYTYDTSEVTLQHALDAKGEREVKEIVINKDAFTENGQWSIEHKPSRKNWRSDDPSYEDVTFYLIIQRKPLFYIVYTIIPCILISILAILVFYLPPDAGEKMSLSISALLAVTVFLLLLADKVPETSLSVPIIIRYLMFIMILVAFSVILSVVVLNLHHRSPNTHTMPNWIRQIFIETLPPFLWIQRPVTTPSPDSKPTIISRANDEYFIRKPAGDFVCPVDNARVAVQPERLFSEMKWHLNGLTQPVTLPQDLKEAVEAIKYIAEQLESASEFDDLKKDWQYVAMVADRLFLYVFFVICSIGTFSIFLDASHNVPPDNPFA

Entity 4 Entity 4 polymer

Description description	Acetylcholine receptor subunit gamma
Molecular weight formula_weight	56335.7 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	E

ENEEGRLIEKLLGDYDKRIIPAKTLDHIIDVTLKLTLTNLISLNEKEEALTTNVWIEIQWNDYRLSWNTSEYEGIDLVRIPSELLWLPDVVLENNVDGQFEVAYYANVLVYNDGSMYWLPPAIYRSTCPIAVTYFPFDWQNCSLVFRSQTYNAHEVNLQLSAEEGEAVEWIHIDPEDFTENGEWTIRHRPAKKNYNWQLTKDDTDFQEIIFFLIIQRKPLFYIINIIAPCVLISSLVVLVYFLPAQAGGQKCTLSISVLLAQTIFLFLIAQKVPETSLNVPLIGKYLIFVMFVSMLIVMNCVIVLNVSLRTPNTHSLSEKIKHLFLGFLPKYLGMQLEPSEETPEKPQPRRRSSFGIMIKAEEYILKKPRSELMFEEQKDRHGLKRVNKMTSDIDIGTTVDLYKDLANFAPEIKSCVEACNFIAKSTKEQNDSGSENENWVLIGKVIDKACFWIALLLFSIGTLAIFLTGHFNQVPEFPFPGDPRKYVP

Entity 5 Entity 5 branched

Description description	;alpha-D-mannopyranose-(1-6)-alpha-D-mannopyranose-(1-6)-beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose ;
Molecular weight formula_weight	910.8 kDa
Source method src_method	man
Copy count entity_count	3

Entity 6 Entity 6 branched

Description description	2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose
Molecular weight formula_weight	424.4 kDa
Source method src_method	man
Copy count entity_count	1

Entity 7 Entity 7 branched

Description description	beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose
Molecular weight formula_weight	586.5 kDa
Source method src_method	man
Copy count entity_count	1

Entity 8 Entity 8 non-polymer

Description description	2-[(AMINOCARBONYL)OXY]-N,N,N-TRIMETHYLETHANAMINIUM
Molecular weight formula_weight	147.2 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 9 Entity 9 non-polymer

Description description	CHOLESTEROL
Molecular weight formula_weight	386.7 kDa
Source method src_method	syn
Copy count entity_count	3

Entity 10 Entity 10 non-polymer

Description description	(2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate
Molecular weight formula_weight	760.1 kDa
Source method src_method	syn
Copy count entity_count	6

Entity 11 Entity 11 non-polymer

Description description	2-acetamido-2-deoxy-beta-D-glucopyranose
Molecular weight formula_weight	221.2 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 12 Entity 12 non-polymer

Description description	nonane
Molecular weight formula_weight	128.3 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 13 Entity 13 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	21

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7. Fold Classification (SCOP + CATH) 7 domains

CATH v4.4 (7 domains)

Domain ID domain_id	7smrA01
Class class	2 — Mainly Beta
Architecture architecture	70 — Distorted Sandwich
Topology topology	170 — Acetylcholine Binding Protein; Chain: A,
Homologous superfamily homologous superfamily	10 — Neurotransmitter-gated ion-channel ligand-binding domain

Domain ID domain_id	7smrA02
Class class	1 — Mainly Alpha
Architecture architecture	20 — Up-down Bundle
Topology topology	58 — Methane Monooxygenase Hydroxylase; Chain G, domain 1
Homologous superfamily homologous superfamily	390 — Neurotransmitter-gated ion-channel transmembrane domain

Domain ID domain_id	7smrB01
Class class	2 — Mainly Beta
Architecture architecture	70 — Distorted Sandwich
Topology topology	170 — Acetylcholine Binding Protein; Chain: A,
Homologous superfamily homologous superfamily	10 — Neurotransmitter-gated ion-channel ligand-binding domain

Domain ID domain_id	7smrC01
Class class	2 — Mainly Beta
Architecture architecture	70 — Distorted Sandwich
Topology topology	170 — Acetylcholine Binding Protein; Chain: A,
Homologous superfamily homologous superfamily	10 — Neurotransmitter-gated ion-channel ligand-binding domain

Domain ID domain_id	7smrD01
Class class	2 — Mainly Beta
Architecture architecture	70 — Distorted Sandwich
Topology topology	170 — Acetylcholine Binding Protein; Chain: A,
Homologous superfamily homologous superfamily	10 — Neurotransmitter-gated ion-channel ligand-binding domain

Domain ID domain_id	7smrD02
Class class	1 — Mainly Alpha
Architecture architecture	20 — Up-down Bundle
Topology topology	58 — Methane Monooxygenase Hydroxylase; Chain G, domain 1
Homologous superfamily homologous superfamily	390 — Neurotransmitter-gated ion-channel transmembrane domain

Domain ID domain_id	7smrE01
Class class	2 — Mainly Beta
Architecture architecture	70 — Distorted Sandwich
Topology topology	170 — Acetylcholine Binding Protein; Chain: A,
Homologous superfamily homologous superfamily	10 — Neurotransmitter-gated ion-channel ligand-binding domain

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8. Citations (1)

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Unit-cell length a length_a	1.000 Å
Unit-cell length b length_b	1.000 Å
Unit-cell length c length_c	1.000 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	90.00 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	—

Space group space_group	P 1
Space-group number int_tables_number	1
Crystal system crystal_system	—

Resolution resolution	2.770 Å
Low-resolution limit resolution_low	— Å
R factor r_factor	—
R_work r_work	—
R_free r_free	—

Resolution resolution	2.77 Å
Resolution测定方法 resolution_method	—
颗粒数 num_particles	204581

fit	/app/data/saxs_computation/sm/7smr/7smr.fit
pddf	/app/data/pr_computation/sm/7smr/7smr.pr.out
profile	/app/data/saxs_computation/sm/7smr/7smr.dat

Cryo-EM structure of Torpedo acetylcholine receptor in complex with carbachol, desensitized state

1. Protein Identity and Related Structures Protein Identity & Related Structures

Acetylcholine receptor subunit alpha

State in the Current Structure

Other States of the Same Protein in the Database

Acetylcholine receptor subunit delta

State in the Current Structure

Other States of the Same Protein in the Database

Acetylcholine receptor subunit beta

State in the Current Structure

Other States of the Same Protein in the Database

Acetylcholine receptor subunit gamma

State in the Current Structure

Other States of the Same Protein in the Database

SAXS scattering curve SAXS Profile

P(r) Distance Distribution P(r) Distribution

2. Structure Basics 2. Structure Basics

3. SAXS Parameters (CRYSOL theoretical calculation) 3. SAXS Parameters (CRYSOL)

4. P(r) Distance Distribution (GNOM inversion) 4. P(r) Analysis (GNOM)

5. Crystallography and Experiment 5. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

冷冻电镜 EM 3D

6. Entities and Polymers Entities & Polymers (13)

Entity 1 Entity 1 polymer

Polymer Polymer

Entity 2 Entity 2 polymer

Polymer Polymer

Entity 3 Entity 3 polymer

Polymer Polymer

Entity 4 Entity 4 polymer

Polymer Polymer

Entity 5 Entity 5 branched

Entity 6 Entity 6 branched

Entity 7 Entity 7 branched

Entity 8 Entity 8 non-polymer

Entity 9 Entity 9 non-polymer

Entity 10 Entity 10 non-polymer

Entity 11 Entity 11 non-polymer

Entity 12 Entity 12 non-polymer

Entity 13 Entity 13 water

7. Fold Classification (SCOP + CATH) 7 domains

CATH v4.4 (7 domains)

8. Citations (1)

9. Files and Curves (10)

Files (7)

Curves (3)