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Protein Structures and Oligomeric States

Enter a protein name, UniProt accession or PDB ID. Name searches ask you to confirm the protein identity before related structures are queried.

Current Protein Identity：Q12791 New Search
28PDB entries
28Biological assembly
104chain/assembly records
Main Difference Dimensions in This Set
Different construct Different mutation/modification Different assembly state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics

Difference tags compare only the current result set; every original PDB and assembly record remains separate.

Related-Structure Differences

Each row represents one biological assembly in one PDB entry; multiple monomers of the same protein are listed separately.

PDB Entry Assembly / Oligomeric State Construct Mutations and Modifications Ligands, Ions and Non-polymers Experimental Method Experimental Conditions Structure Quality
10AD Cryo-EM structure of the human BK channel bound to the agonist NS1619 Deposited 2026-01-08 Assembly 1 Protein homooligomer Homooligomer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain A 66–1178（1113 aa）
Chain C 66–1178（1113 aa）
Chain D 66–1178（1113 aa）
Chain E 66–1178（1113 aa）
Not recorded MG MAGNESIUM ION × 4 CA CALCIUM ION × 8 A1E02 3-[2-oxidanyl-5-(trifluoromethyl)phenyl]-6-(trifluoromethyl)-1~{H}-benzimidazol-2-one × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.44 Å
2K44 Solution structure of a K+-channel voltage-sensor paddle domain Deposited 2008-05-28 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 257–284（28 aa）
Not recorded No recorded non-water small molecule SOLUTION NMR
NMR measurement conditions pH 5.5；310 K；Ionic strength (raw mmCIF value) 0.05；Pressure ambient
NMR sample composition 100mM [U-2H] 98% DPC, 50mM potassium chloride, 1mM HsapBK(233-260), 90% H2O/10% D2O | 90% H2O/10% D2O
Resolution not provided
3NAF Structure of the Intracellular Gating Ring from the Human High-conductance Ca2+ gated K+ Channel (BK Channel) Deposited 2010-06-01 Assembly 1 Protein homooligomer Homooligomer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain A 394–681（288 aa） Fragment：Intracellular Domain (UNP RESIDUES 329-616; 659-1113)
Chain A 786–1240（455 aa） Fragment：Intracellular Domain (UNP RESIDUES 329-616; 659-1113)
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 8.5；277 K；3.5M sodium formate, 0.1M Tris-HCl, pH 8.5, VAPOR DIFFUSION, SITTING DROP, temperature 277K
Resolution 3.10 Å R-free 0.289
6ND0 human BK channel reconstituted into liposomes Deposited 2018-12-13 Assembly 1 Protein homooligomer Homooligomer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain A 292–1175（884 aa）
Chain B 292–1175（884 aa）
Chain C 292–1175（884 aa）
Chain D 292–1175（884 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.3
cryo-EM vitrification conditions Cryogen ETHANE；BK proteoliposomes were applied onto a glow-discharged perforated carbon grid (CFlat R2/2, EMS), and incubated for 5-10 min In an FEI Vitrobot Mark IV (FEI). After incubation, the sample was blotted from the side and buffer containing 10 mM HEPES, pH 7.3, 75 mM KCl, and 1 mM EDTA was applied onto the TEM grid to further swell proteoliposomes. Then grids were blotted for 7 s with force 0 and fast frozen in liquid ethane cooled by liquid nitrogen.
Resolution 3.50 Å
6V22 Cryo-EM structure of Ca2+-bound hsSlo1-beta4 channel complex Deposited 2019-11-22 Assembly 1 Protein heterocomplex Heteromer；Protein × 8 PDB declaration: octameric（8） Consistent with protein count
Chain A 66–1121（1056 aa） Fragment：UNP residues 66-1121
Chain B 66–1121（1056 aa） Fragment：UNP residues 66-1121
Chain C 66–1121（1056 aa） Fragment：UNP residues 66-1121
Chain D 66–1121（1056 aa） Fragment：UNP residues 66-1121
Not recorded MG MAGNESIUM ION × 4 CA CALCIUM ION × 8 POV (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate × 60 CLR CHOLESTEROL × 16 K POTASSIUM ION × 4 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 8 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE；Blot for 4 seconds before plunging.
Resolution 3.20 Å
6V35 Cryo-EM structure of Ca2+-free hsSlo1-beta4 channel complex Deposited 2019-11-25 Assembly 1 Protein heterocomplex Heteromer；Protein × 8 PDB declaration: octameric（8） Consistent with protein count
Chain A 66–1121（1056 aa）
Chain B 66–1121（1056 aa）
Chain C 66–1121（1056 aa）
Chain D 66–1121（1056 aa）
Not recorded PGW (1R)-2-{[(S)-{[(2S)-2,3-dihydroxypropyl]oxy}(hydroxy)phosphoryl]oxy}-1-[(hexadecanoyloxy)methyl]ethyl (9Z)-octadec-9-enoate × 40 CLR CHOLESTEROL × 8 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 8 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE；Blot for 4 seconds before plunging.
Resolution 3.50 Å
6V38 Cryo-EM structure of Ca2+-bound hsSlo1 channel Deposited 2019-11-25 Assembly 1 Protein homooligomer Homooligomer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain A 66–1121（1056 aa）
Chain B 66–1121（1056 aa）
Chain C 66–1121（1056 aa）
Chain D 66–1121（1056 aa）
Not recorded MG MAGNESIUM ION × 4 CA CALCIUM ION × 8 POV (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate × 32 CLR CHOLESTEROL × 12 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE；Blot for 4 seconds before plunging.
Resolution 3.80 Å
6V3G Cryo-EM structure of Ca2+-free hsSlo1 channel Deposited 2019-11-25 Assembly 1 Protein homooligomer Homooligomer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain A 66–1121（1056 aa）
Chain B 66–1121（1056 aa）
Chain C 66–1121（1056 aa）
Chain D 66–1121（1056 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE；Blot for 4 seconds before plunging.
Resolution 4.00 Å
6V5A Crystal structure of the human BK channel gating ring L390P mutant Deposited 2019-12-03 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 406–1121（716 aa） Fragment：Gating Ring
Mutation：L390P CA CALCIUM ION × 1 SO4 SULFATE ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 4.9；295 K；50 mM sodium acetate, 4% (w/v) PEG 4000, 100 mM sodium sulfate, and 100 mM lithium sulfate (pH 4.9)
Resolution 2.00 Å R-free 0.226
8GH9 Cryo-EM structure of hSlo1 in total membrane vesicles Deposited 2023-03-09 Assembly 1 Protein homooligomer Homooligomer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain A 67–1121（1055 aa）
Chain B 67–1121（1055 aa）
Chain C 67–1121（1055 aa）
Chain D 67–1121（1055 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.80 Å
8GHF cryo-EM structure of hSlo1 in plasma membrane vesicles Deposited 2023-03-10 Assembly 1 Protein homooligomer Homooligomer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain A 67–1121（1055 aa）
Chain B 67–1121（1055 aa）
Chain C 67–1121（1055 aa）
Chain D 67–1121（1055 aa）
Not recorded MG MAGNESIUM ION × 4 CA CALCIUM ION × 8 POV (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate × 88 CLR CHOLESTEROL × 24 NA SODIUM ION × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.70 Å
8GHG Cryo-EM structure of hSlo1 in digitonin, Ca2+-free and EDTA-free Deposited 2023-03-10 Assembly 1 Protein homooligomer Homooligomer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain A 67–1121（1055 aa）
Chain B 67–1121（1055 aa）
Chain C 67–1121（1055 aa）
Chain D 67–1121（1055 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.30 Å
8V60 F315A mutant of human Slo1 in presence of EDTA - resting VSD Deposited 2023-12-01 Assembly 1 Protein homooligomer Homooligomer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain A 66–1121（1056 aa）
Chain B 66–1121（1056 aa）
Chain C 66–1121（1056 aa）
Chain D 66–1121（1056 aa）
Mutation：F315A Mutation：F315A Mutation：F315A Mutation：F315A K POTASSIUM ION × 9 POV (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate × 28 CLR CHOLESTEROL × 4 AJP Digitonin × 36 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.43 Å
8V63 R207A mutant of human Slo1 in presence of EDTA - activated VSD Deposited 2023-12-01 Assembly 1 Protein homooligomer Homooligomer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain A 66–1121（1056 aa）
Chain B 66–1121（1056 aa）
Chain C 66–1121（1056 aa）
Chain D 66–1121（1056 aa）
Mutation：R207A Mutation：R207A Mutation：R207A Mutation：R207A K POTASSIUM ION × 9 POV (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate × 28 CLR CHOLESTEROL × 4 AJP Digitonin × 40 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.72 Å
8V64 RCK1-RCK2 double mutant of human Slo1 in presence of EDTA - resting VSD Deposited 2023-12-01 Assembly 1 Protein homooligomer Homooligomer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain A 66–1121（1056 aa）
Chain B 66–1121（1056 aa）
Chain C 66–1121（1056 aa）
Chain D 66–1121（1056 aa）
Mutation：D894A,D895A,D896A,D897A Mutation：D894A,D895A,D896A,D897A Mutation：D894A,D895A,D896A,D897A Mutation：D894A,D895A,D896A,D897A K POTASSIUM ION × 9 POV (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate × 24 CLR CHOLESTEROL × 4 AJP Digitonin × 36 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.60 Å
8VAV Human Slo1 - human LRRC26 in presence of EDTA - GR masked Deposited 2023-12-11 Assembly 1 Protein heterocomplex Heteromer；Protein × 8 PDB declaration: octameric（8） Consistent with protein count
Chain A 66–1121（1056 aa）
Chain B 66–1121（1056 aa）
Chain C 66–1121（1056 aa）
Chain D 66–1121（1056 aa）
Not recorded POV (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate × 20 K POTASSIUM ION × 4 AJP Digitonin × 32 CLR CHOLESTEROL × 4 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.13 Å
8VAZ Structure of human Slo1 and human LRRC26 in EDTA - LRRD masked Deposited 2023-12-11 Assembly 1 Protein heterocomplex Heteromer；Protein × 8 PDB declaration: octameric（8） Consistent with protein count
Chain A 66–1121（1056 aa）
Chain B 66–1121（1056 aa）
Chain C 66–1121（1056 aa）
Chain D 66–1121（1056 aa）
Not recorded K POTASSIUM ION × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.82 Å
8Z3S Activation mechanism and novel binding site of the BKCa channel activator CTIBD Deposited 2024-04-16 Assembly 1 Protein homooligomer Homooligomer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain A 66–1179（1114 aa）
Chain B 66–1179（1114 aa）
Chain C 66–1179（1114 aa）
Chain D 66–1179（1114 aa）
Not recorded A1L04 4-[4-(4-chlorophenyl)-3-(trifluoromethyl)-1,2-oxazol-5-yl]benzene-1,3-diol × 8 Y01 CHOLESTEROL HEMISUCCINATE × 4 MG MAGNESIUM ION × 4 CA CALCIUM ION × 8 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.90 Å
9CZH Ca2+ bound intermediate state of hSlo1 + beta2N-beta4 channel in detergent. Deposited 2024-08-05 Assembly 1 Insufficient information Heteromer；Protein × 8 PDB declaration: octameric（8） Consistent with protein count
Chain A 66–1121（1056 aa）
Chain B 66–1121（1056 aa）
Chain C 66–1121（1056 aa）
Chain D 66–1121（1056 aa）
Not recorded CA CALCIUM ION × 8 K POTASSIUM ION × 4 POV (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate × 10 ELECTRON MICROSCOPY
cryo-EM buffer pH 8；20 mM Tris-HCl pH 8.0, 450 mM KCl, 5 mM EDTA, 15 mM MgCl2, 0.02% GDN and 0.05 mg/ml POPE:POPC:POPA 5:5:1 (w:w:w).
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.90 Å
9CZJ Ca2+ free hSlo1 + beta2N-beta4 channel in detergent. Deposited 2024-08-05 Assembly 1 Insufficient information Heteromer；Protein × 8 PDB declaration: octameric（8） Consistent with protein count
Chain A 66–1121（1056 aa）
Chain B 66–1121（1056 aa）
Chain C 66–1121（1056 aa）
Chain D 66–1121（1056 aa）
Not recorded CLR CHOLESTEROL × 4 K POTASSIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8；20 mM Tris-HCl pH 8.0, 450 mM KCl, 5 mM EDTA, 15 mM MgCl2, 0.02% GDN and 0.05 mg/ml POPE:POPC:POPA 5:5:1 (w:w:w).
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.54 Å
9CZK Ca2+ free hSlo1 + beta2N-beta4 channel in nanodisc. Deposited 2024-08-05 Assembly 1 Insufficient information Heteromer；Protein × 8 PDB declaration: octameric（8） Consistent with protein count
Chain A 66–1121（1056 aa）
Chain B 66–1121（1056 aa）
Chain C 66–1121（1056 aa）
Chain D 66–1121（1056 aa）
Not recorded K POTASSIUM ION × 2 POV (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate × 4 CLR CHOLESTEROL × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 8；20 mM Tris-HCl pH 8.0, 450 mM KCl, 5 mM EDTA, 15 mM MgCl2, 0.02% GDN and 0.05 mg/ml POPE:POPC:POPA 5:5:1 (w:w:w).
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.50 Å
9CZM Ca2+ bound open-inactivated hSlo1 + beta2N-beta4 channel in nanodisc. Deposited 2024-08-05 Assembly 1 Insufficient information Heteromer；Protein × 8 PDB declaration: octameric（8） Consistent with protein count
Chain A 66–1121（1056 aa）
Chain B 66–1121（1056 aa）
Chain C 66–1121（1056 aa）
Chain D 66–1121（1056 aa）
Not recorded POV (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate × 32 MG MAGNESIUM ION × 4 CA CALCIUM ION × 8 CLR CHOLESTEROL × 8 K POTASSIUM ION × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 8；20 mM Tris-HCl pH 8.0, 450 mM KCl, 5 mM EDTA, 15 mM MgCl2, 0.02% GDN and 0.05 mg/ml POPE:POPC:POPA 5:5:1 (w:w:w).
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.57 Å
9CZO Ca2+ bound intermediate state of hSlo1 + beta2N-beta4 channel in nanodisc. Deposited 2024-08-05 Assembly 1 Insufficient information Heteromer；Protein × 8 PDB declaration: octameric（8） Consistent with protein count
Chain A 66–1121（1056 aa）
Chain B 66–1121（1056 aa）
Chain C 66–1121（1056 aa）
Chain D 66–1121（1056 aa）
Not recorded CA CALCIUM ION × 8 K POTASSIUM ION × 4 POV (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate × 11 ELECTRON MICROSCOPY
cryo-EM buffer pH 8；20 mM Tris-HCl pH 8.0, 450 mM KCl, 5 mM EDTA, 15 mM MgCl2, 0.02% GDN and 0.05 mg/ml POPE:POPC:POPA 5:5:1 (w:w:w).
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.87 Å
9CZQ Ca2+ bound open-inactivated hSlo1 + beta2N-beta4 channel in detergent. Deposited 2024-08-05 Assembly 1 Insufficient information Heteromer；Protein × 8 PDB declaration: octameric（8） Consistent with protein count
Chain A 66–1121（1056 aa）
Chain B 66–1121（1056 aa）
Chain C 66–1121（1056 aa）
Chain D 66–1121（1056 aa）
Not recorded MG MAGNESIUM ION × 4 CA CALCIUM ION × 8 POV (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate × 20 CLR CHOLESTEROL × 11 K POTASSIUM ION × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 8；20 mM Tris-HCl pH 8.0, 450 mM KCl, 5 mM EDTA, 15 mM MgCl2, 0.02% GDN and 0.05 mg/ml POPE:POPC:POPA 5:5:1 (w:w:w).
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.88 Å
9D18 Ca2+ bound open-inactivated hSlo1 + beta2N-beta4 channel in detergent-conformation 2 of inactivating domain Deposited 2024-08-07 Assembly 1 Insufficient information Heteromer；Protein × 8 PDB declaration: octameric（8） Consistent with protein count
Chain A 66–1121（1056 aa）
Chain B 66–1121（1056 aa）
Chain C 66–1121（1056 aa）
Chain D 66–1121（1056 aa）
Not recorded MG MAGNESIUM ION × 4 CA CALCIUM ION × 8 POV (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate × 20 CLR CHOLESTEROL × 11 K POTASSIUM ION × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 8；20 mM Tris-HCl pH 8.0, 450 mM KCl, 5 mM EDTA, 15 mM MgCl2, 0.02% GDN and 0.05 mg/ml POPE:POPC:POPA 5:5:1 (w:w:w).
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.88 Å
9D19 Ca2+ bound open-inactivated hSlo1 + beta2N-beta4 channel in detergent-conformation 3 of inactivating domain Deposited 2024-08-07 Assembly 1 Insufficient information Heteromer；Protein × 8 PDB declaration: octameric（8） Consistent with protein count
Chain A 66–1121（1056 aa）
Chain B 66–1121（1056 aa）
Chain C 66–1121（1056 aa）
Chain D 66–1121（1056 aa）
Not recorded MG MAGNESIUM ION × 4 CA CALCIUM ION × 8 POV (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate × 20 CLR CHOLESTEROL × 11 K POTASSIUM ION × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 8；20 mM Tris-HCl pH 8.0, 450 mM KCl, 5 mM EDTA, 15 mM MgCl2, 0.02% GDN and 0.05 mg/ml POPE:POPC:POPA 5:5:1 (w:w:w).
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.88 Å
9JO3 Cryo-EM structure of human BKca channel-compound 10b complex Deposited 2024-09-24 Assembly 1 Protein homooligomer Homooligomer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain A 66–1184（1119 aa）
Chain B 66–1184（1119 aa）
Chain C 66–1184（1119 aa）
Chain D 66–1184（1119 aa）
Not recorded MG MAGNESIUM ION × 4 CA CALCIUM ION × 8 K POTASSIUM ION × 3 A1L4E 5-azanyl-2-[2,3,5,6-tetrakis(fluoranyl)-4-(trifluoromethyl)phenoxy]phenol × 4 Y01 CHOLESTEROL HEMISUCCINATE × 16 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.80 Å
9JO4 Cryo-EM structure of human BKca channel-compound 51b complex Deposited 2024-09-24 Assembly 1 Protein homooligomer Homooligomer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain A 66–1179（1114 aa）
Chain B 66–1179（1114 aa）
Chain C 66–1179（1114 aa）
Chain D 66–1179（1114 aa）
Not recorded A1L4F 5-(5-morpholin-4-ylpentylamino)-2-[2,3,5,6-tetrakis(fluoranyl)-4-(trifluoromethyl)phenoxy]phenol × 4 MG MAGNESIUM ION × 4 CA CALCIUM ION × 8 K POTASSIUM ION × 3 Y01 CHOLESTEROL HEMISUCCINATE × 16 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.40 Å

This page presents structural evidence recorded in PDB/mmCIF.“No recorded non-water small molecule” does not prove that the experimental sample was ligand-free; experimental conditions belong to the PDB experiment, while ligands and copy counts are shown for each biological assembly.