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9oup

Native GABA-A receptor from rat cerebella, beta2-alpha1-beta1-alpha6-gamma2 subtype, in complex with GABA

Method: ELECTRON MICROSCOPY Dmax: 114.8 Å Quality: GOOD
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1. Protein Identity and Related Structures Protein Identity & Related Structures

Gamma-aminobutyric acid receptor subunit alpha-1

OrganismNot specified

UniProt P62813

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 × 7 其他Polymer 8 PDB declaration: heptameric（7） Consistent with protein copy count Chain A； UniProt 1–455 Not recorded Gamma-aminobutyric acid receptor subunit beta-1 × 1 （P15431） Gamma-aminobutyric acid receptor subunit alpha-6 × 1 （P30191） Gamma-aminobutyric acid receptor subunit gamma-2 × 1 （P18508） Gamma-aminobutyric acid receptor subunit beta-2 × 1 （P63138） 8E3 fab heavy chain × 1 8E3 fab light chain × 1 ;alpha-D-mannopyranose-(1-2)-alpha-D-mannopyranose-(1-3)-[alpha-D-mannopyranose-(1-3)-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 ; × 1 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose × 4 beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose × 3 ABU GAMMA-AMINO-BUTANOIC ACID × 2 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 ELECTRON MICROSCOPY cryo-EM buffer：pH 8 cryo-EM vitrification conditions：Cryogen ETHANE-PROPANE Resolution 2.82 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 9OUP Assembly / Oligomeric State Construct Mutations and Modifications Ligands, Ions and Non-polymers Method and Experimental Conditions Structure Quality
6DW0 Cryo-EM structure of the benzodiazepine-sensitive alpha1beta1gamma2S tri-heteromeric GABAA receptor in complex with GABA (Whole map) Deposited 2018-06-26 Different construct Different mutation/modification 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 1–340（340 aa） Fragment：residues 39-334
Chain A 409–455（47 aa） Fragment：residues 39-334
Chain C 1–340（340 aa） Fragment：residues 39-334
Chain C 409–455（47 aa） Fragment：residues 39-334
Not recorded ABU GAMMA-AMINO-BUTANOIC ACID × 3 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.3
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.80 Å
6DW1 Cryo-EM structure of the benzodiazepine-sensitive alpha1beta1gamma2S tri-heteromeric GABAA receptor in complex with GABA (ECD map) Deposited 2018-06-26 Different construct Different mutation/modification 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 1–340（340 aa） Fragment：residues 39-334
Chain A 409–455（47 aa） Fragment：residues 39-334
Chain C 1–340（340 aa） Fragment：residues 39-334
Chain C 409–455（47 aa） Fragment：residues 39-334
Not recorded ABU GAMMA-AMINO-BUTANOIC ACID × 3 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.3
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.10 Å
9OUM Native GABA-A receptor from rat cerebella, beta2-alpha1-beta1-alpha6-gamma2 subtype, in complex with GABA and PZ-II-029 Deposited 2025-05-29 Different ligand/ion Different structure-quality metrics Assembly 1 Other combination Heteromer；Protein × 7 PDB declaration: heptameric
Chain A 1–455（455 aa）
Not recorded ABU GAMMA-AMINO-BUTANOIC ACID × 2 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 A1CEP 7-methoxy-2-(4-methoxyphenyl)-1,2-dihydro-3H-pyrazolo[4,3-c]quinolin-3-one × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE-PROPANE
Resolution 2.90 Å
9OUN Native GABA-A receptor from rat cerebella, beta2-alpha1-beta2-alpha1-gamma2 subtype, in complex with GABA and PZ-II-029 Deposited 2025-05-29 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different structure-quality metrics Assembly 1 Other combination Heteromer；Protein × 9 PDB declaration: nonameric
Chain A 1–455（455 aa）
Chain C 1–455（455 aa）
Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 ABU GAMMA-AMINO-BUTANOIC ACID × 2 A1CEP 7-methoxy-2-(4-methoxyphenyl)-1,2-dihydro-3H-pyrazolo[4,3-c]quinolin-3-one × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE-PROPANE
Resolution 2.74 Å
9OUO Native GABA-A receptor from rat cerebella, beta1-alpha1-beta1-alpha1-gamma2 subtype, in complex with GABA and PZ-II-029 Deposited 2025-05-29 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different structure-quality metrics Assembly 1 Other combination Heteromer；Protein × 9 PDB declaration: nonameric
Chain A 1–455（455 aa）
Chain C 1–455（455 aa）
Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 A1CEP 7-methoxy-2-(4-methoxyphenyl)-1,2-dihydro-3H-pyrazolo[4,3-c]quinolin-3-one × 1 ABU GAMMA-AMINO-BUTANOIC ACID × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE-PROPANE
Resolution 2.92 Å
9OUQ Native GABA-A receptor from rat cerebella, beta1-alpha1-beta2-alpha1-gamma2 subtype, in complex with GABA Deposited 2025-05-29 Different construct Different mutation/modification Different oligomeric state Different structure-quality metrics Assembly 1 Other combination Heteromer；Protein × 9 PDB declaration: nonameric
Chain A 1–455（455 aa）
Chain C 1–455（455 aa）
Not recorded ABU GAMMA-AMINO-BUTANOIC ACID × 2 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE-PROPANE
Resolution 2.89 Å
9OUR Native GABA-A receptor from rat cerebella, beta2-alpha1-beta2-alpha1-gamma2 subtype, in complex with GABA Deposited 2025-05-29 Different construct Different mutation/modification Different oligomeric state Different structure-quality metrics Assembly 1 Other combination Heteromer；Protein × 9 PDB declaration: nonameric
Chain A 1–455（455 aa）
Chain C 1–455（455 aa）
Not recorded ABU GAMMA-AMINO-BUTANOIC ACID × 2 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE-PROPANE
Resolution 2.84 Å
9OV4 Native GABA-A receptor from rat cerebella, beta1-alpha1-beta2-alpha1-gamma2 subtype, in complex with GABA and PZ-II-029 Deposited 2025-05-29 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different structure-quality metrics Assembly 1 Other combination Heteromer；Protein × 9 PDB declaration: nonameric
Chain A 1–455（455 aa）
Chain C 1–455（455 aa）
Not recorded ABU GAMMA-AMINO-BUTANOIC ACID × 2 A1CEP 7-methoxy-2-(4-methoxyphenyl)-1,2-dihydro-3H-pyrazolo[4,3-c]quinolin-3-one × 1 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE-PROPANE
Resolution 2.93 Å

8 other PDB entries and 8 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name GBRA1_RAT
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A； PDBConstruct 1–455； UniProt 1–455

Gamma-aminobutyric acid receptor subunit beta-1

OrganismNot specified

UniProt P15431

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 × 7 其他Polymer 8 PDB declaration: heptameric（7） Consistent with protein copy count Chain B； UniProt 1–474 Not recorded Gamma-aminobutyric acid receptor subunit alpha-1 × 1 （P62813） Gamma-aminobutyric acid receptor subunit alpha-6 × 1 （P30191） Gamma-aminobutyric acid receptor subunit gamma-2 × 1 （P18508） Gamma-aminobutyric acid receptor subunit beta-2 × 1 （P63138） 8E3 fab heavy chain × 1 8E3 fab light chain × 1 ;alpha-D-mannopyranose-(1-2)-alpha-D-mannopyranose-(1-3)-[alpha-D-mannopyranose-(1-3)-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 ; × 1 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose × 4 beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose × 3 ABU GAMMA-AMINO-BUTANOIC ACID × 2 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 ELECTRON MICROSCOPY cryo-EM buffer：pH 8 cryo-EM vitrification conditions：Cryogen ETHANE-PROPANE Resolution 2.82 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 9OUP Assembly / Oligomeric State Construct Mutations and Modifications Ligands, Ions and Non-polymers Method and Experimental Conditions Structure Quality
6DW0 Cryo-EM structure of the benzodiazepine-sensitive alpha1beta1gamma2S tri-heteromeric GABAA receptor in complex with GABA (Whole map) Deposited 2018-06-26 Different construct Different mutation/modification 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 1–333（333 aa） Fragment：residues 33-474
Chain B 440–474（35 aa） Fragment：residues 33-474
Chain E 1–333（333 aa） Fragment：residues 33-474
Chain E 440–474（35 aa） Fragment：residues 33-474
Not recorded ABU GAMMA-AMINO-BUTANOIC ACID × 3 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.3
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.80 Å
6DW1 Cryo-EM structure of the benzodiazepine-sensitive alpha1beta1gamma2S tri-heteromeric GABAA receptor in complex with GABA (ECD map) Deposited 2018-06-26 Different construct Different mutation/modification 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 1–333（333 aa） Fragment：residues 33-474
Chain B 440–474（35 aa） Fragment：residues 33-474
Chain E 1–333（333 aa） Fragment：residues 33-474
Chain E 440–474（35 aa） Fragment：residues 33-474
Not recorded ABU GAMMA-AMINO-BUTANOIC ACID × 3 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.3
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.10 Å
9OUM Native GABA-A receptor from rat cerebella, beta2-alpha1-beta1-alpha6-gamma2 subtype, in complex with GABA and PZ-II-029 Deposited 2025-05-29 Different ligand/ion Different structure-quality metrics Assembly 1 Other combination Heteromer；Protein × 7 PDB declaration: heptameric
Chain B 1–474（474 aa）
Not recorded ABU GAMMA-AMINO-BUTANOIC ACID × 2 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 A1CEP 7-methoxy-2-(4-methoxyphenyl)-1,2-dihydro-3H-pyrazolo[4,3-c]quinolin-3-one × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE-PROPANE
Resolution 2.90 Å
9OUO Native GABA-A receptor from rat cerebella, beta1-alpha1-beta1-alpha1-gamma2 subtype, in complex with GABA and PZ-II-029 Deposited 2025-05-29 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different structure-quality metrics Assembly 1 Other combination Heteromer；Protein × 9 PDB declaration: nonameric
Chain B 1–474（474 aa）
Chain E 1–474（474 aa）
Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 A1CEP 7-methoxy-2-(4-methoxyphenyl)-1,2-dihydro-3H-pyrazolo[4,3-c]quinolin-3-one × 1 ABU GAMMA-AMINO-BUTANOIC ACID × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE-PROPANE
Resolution 2.92 Å
9OUQ Native GABA-A receptor from rat cerebella, beta1-alpha1-beta2-alpha1-gamma2 subtype, in complex with GABA Deposited 2025-05-29 Different oligomeric state Different structure-quality metrics Assembly 1 Other combination Heteromer；Protein × 9 PDB declaration: nonameric
Chain E 1–474（474 aa）
Not recorded ABU GAMMA-AMINO-BUTANOIC ACID × 2 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE-PROPANE
Resolution 2.89 Å
9OV4 Native GABA-A receptor from rat cerebella, beta1-alpha1-beta2-alpha1-gamma2 subtype, in complex with GABA and PZ-II-029 Deposited 2025-05-29 Different oligomeric state Different ligand/ion Different structure-quality metrics Assembly 1 Other combination Heteromer；Protein × 9 PDB declaration: nonameric
Chain E 1–474（474 aa）
Not recorded ABU GAMMA-AMINO-BUTANOIC ACID × 2 A1CEP 7-methoxy-2-(4-methoxyphenyl)-1,2-dihydro-3H-pyrazolo[4,3-c]quinolin-3-one × 1 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE-PROPANE
Resolution 2.93 Å

6 other PDB entries and 6 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name GBRB1_RAT
Isoform —
PDB entities 2
Chains and sequence ranges Author chain B； PDBConstruct 1–474； UniProt 1–474

Gamma-aminobutyric acid receptor subunit alpha-6

OrganismNot specified

UniProt P30191

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 × 7 其他Polymer 8 PDB declaration: heptameric（7） Consistent with protein copy count Chain C； UniProt 1–453 Not recorded Gamma-aminobutyric acid receptor subunit alpha-1 × 1 （P62813） Gamma-aminobutyric acid receptor subunit beta-1 × 1 （P15431） Gamma-aminobutyric acid receptor subunit gamma-2 × 1 （P18508） Gamma-aminobutyric acid receptor subunit beta-2 × 1 （P63138） 8E3 fab heavy chain × 1 8E3 fab light chain × 1 ;alpha-D-mannopyranose-(1-2)-alpha-D-mannopyranose-(1-3)-[alpha-D-mannopyranose-(1-3)-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 ; × 1 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose × 4 beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose × 3 ABU GAMMA-AMINO-BUTANOIC ACID × 2 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 ELECTRON MICROSCOPY cryo-EM buffer：pH 8 cryo-EM vitrification conditions：Cryogen ETHANE-PROPANE Resolution 2.82 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 9OUP Assembly / Oligomeric State Construct Mutations and Modifications Ligands, Ions and Non-polymers Method and Experimental Conditions Structure Quality
9OUM Native GABA-A receptor from rat cerebella, beta2-alpha1-beta1-alpha6-gamma2 subtype, in complex with GABA and PZ-II-029 Deposited 2025-05-29 Different ligand/ion Different structure-quality metrics Assembly 1 Other combination Heteromer；Protein × 7 PDB declaration: heptameric
Chain C 1–453（453 aa）
Not recorded ABU GAMMA-AMINO-BUTANOIC ACID × 2 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 A1CEP 7-methoxy-2-(4-methoxyphenyl)-1,2-dihydro-3H-pyrazolo[4,3-c]quinolin-3-one × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE-PROPANE
Resolution 2.90 Å

1 other PDB entries and 1 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name GBRA6_RAT
Isoform —
PDB entities 3
Chains and sequence ranges Author chain C； PDBConstruct 1–453； UniProt 1–453

Gamma-aminobutyric acid receptor subunit gamma-2

OrganismNot specified

UniProt P18508

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 × 7 其他Polymer 8 PDB declaration: heptameric（7） Consistent with protein copy count Chain D； UniProt 1–466 Not recorded Gamma-aminobutyric acid receptor subunit alpha-1 × 1 （P62813） Gamma-aminobutyric acid receptor subunit beta-1 × 1 （P15431） Gamma-aminobutyric acid receptor subunit alpha-6 × 1 （P30191） Gamma-aminobutyric acid receptor subunit beta-2 × 1 （P63138） 8E3 fab heavy chain × 1 8E3 fab light chain × 1 ;alpha-D-mannopyranose-(1-2)-alpha-D-mannopyranose-(1-3)-[alpha-D-mannopyranose-(1-3)-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 ; × 1 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose × 4 beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose × 3 ABU GAMMA-AMINO-BUTANOIC ACID × 2 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 ELECTRON MICROSCOPY cryo-EM buffer：pH 8 cryo-EM vitrification conditions：Cryogen ETHANE-PROPANE Resolution 2.82 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 9OUP Assembly / Oligomeric State Construct Mutations and Modifications Ligands, Ions and Non-polymers Method and Experimental Conditions Structure Quality
2PR9 Mu2 adaptin subunit (AP50) of AP2 adaptor (second domain), complexed with GABAA receptor-gamma2 subunit-derived internalization peptide DEEYGYECL Deposited 2007-05-04 Different construct 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 P 400–409（10 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6；291 K；2.0 M sodium formate, 0.1 M Na-acetate, pH 6.0, VAPOR DIFFUSION, SITTING DROP, temperature 291K
Resolution 2.51 Å R-free 0.240
6DW0 Cryo-EM structure of the benzodiazepine-sensitive alpha1beta1gamma2S tri-heteromeric GABAA receptor in complex with GABA (Whole map) Deposited 2018-06-26 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 D 1–466（466 aa） Fragment：residues 63-361
Not recorded ABU GAMMA-AMINO-BUTANOIC ACID × 3 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.3
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.80 Å
6DW1 Cryo-EM structure of the benzodiazepine-sensitive alpha1beta1gamma2S tri-heteromeric GABAA receptor in complex with GABA (ECD map) Deposited 2018-06-26 Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Other combination Heteromer；Protein × 5 PDB declaration: pentameric
Chain D 1–466（466 aa）
Not recorded ABU GAMMA-AMINO-BUTANOIC ACID × 3 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.3
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.10 Å
9OUM Native GABA-A receptor from rat cerebella, beta2-alpha1-beta1-alpha6-gamma2 subtype, in complex with GABA and PZ-II-029 Deposited 2025-05-29 Different ligand/ion Different structure-quality metrics Assembly 1 Other combination Heteromer；Protein × 7 PDB declaration: heptameric
Chain D 1–466（466 aa）
Not recorded ABU GAMMA-AMINO-BUTANOIC ACID × 2 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 A1CEP 7-methoxy-2-(4-methoxyphenyl)-1,2-dihydro-3H-pyrazolo[4,3-c]quinolin-3-one × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE-PROPANE
Resolution 2.90 Å
9OUN Native GABA-A receptor from rat cerebella, beta2-alpha1-beta2-alpha1-gamma2 subtype, in complex with GABA and PZ-II-029 Deposited 2025-05-29 Different oligomeric state Different ligand/ion Different structure-quality metrics Assembly 1 Other combination Heteromer；Protein × 9 PDB declaration: nonameric
Chain D 1–466（466 aa）
Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 ABU GAMMA-AMINO-BUTANOIC ACID × 2 A1CEP 7-methoxy-2-(4-methoxyphenyl)-1,2-dihydro-3H-pyrazolo[4,3-c]quinolin-3-one × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE-PROPANE
Resolution 2.74 Å
9OUO Native GABA-A receptor from rat cerebella, beta1-alpha1-beta1-alpha1-gamma2 subtype, in complex with GABA and PZ-II-029 Deposited 2025-05-29 Different oligomeric state Different ligand/ion Different structure-quality metrics Assembly 1 Other combination Heteromer；Protein × 9 PDB declaration: nonameric
Chain D 1–466（466 aa）
Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 A1CEP 7-methoxy-2-(4-methoxyphenyl)-1,2-dihydro-3H-pyrazolo[4,3-c]quinolin-3-one × 1 ABU GAMMA-AMINO-BUTANOIC ACID × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE-PROPANE
Resolution 2.92 Å
9OUQ Native GABA-A receptor from rat cerebella, beta1-alpha1-beta2-alpha1-gamma2 subtype, in complex with GABA Deposited 2025-05-29 Different oligomeric state Different structure-quality metrics Assembly 1 Other combination Heteromer；Protein × 9 PDB declaration: nonameric
Chain D 1–466（466 aa）
Not recorded ABU GAMMA-AMINO-BUTANOIC ACID × 2 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE-PROPANE
Resolution 2.89 Å
9OUR Native GABA-A receptor from rat cerebella, beta2-alpha1-beta2-alpha1-gamma2 subtype, in complex with GABA Deposited 2025-05-29 Different oligomeric state Different structure-quality metrics Assembly 1 Other combination Heteromer；Protein × 9 PDB declaration: nonameric
Chain D 1–466（466 aa）
Not recorded ABU GAMMA-AMINO-BUTANOIC ACID × 2 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE-PROPANE
Resolution 2.84 Å
9OV4 Native GABA-A receptor from rat cerebella, beta1-alpha1-beta2-alpha1-gamma2 subtype, in complex with GABA and PZ-II-029 Deposited 2025-05-29 Different oligomeric state Different ligand/ion Different structure-quality metrics Assembly 1 Other combination Heteromer；Protein × 9 PDB declaration: nonameric
Chain D 1–466（466 aa）
Not recorded ABU GAMMA-AMINO-BUTANOIC ACID × 2 A1CEP 7-methoxy-2-(4-methoxyphenyl)-1,2-dihydro-3H-pyrazolo[4,3-c]quinolin-3-one × 1 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE-PROPANE
Resolution 2.93 Å

9 other PDB entries and 9 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name GBRG2_RAT
Isoform —
PDB entities 4
Chains and sequence ranges Author chain D； PDBConstruct 1–466； UniProt 1–466

Gamma-aminobutyric acid receptor subunit beta-2

OrganismNot specified

UniProt P63138

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 × 7 其他Polymer 8 PDB declaration: heptameric（7） Consistent with protein copy count Chain E； UniProt 1–474 Not recorded Gamma-aminobutyric acid receptor subunit alpha-1 × 1 （P62813） Gamma-aminobutyric acid receptor subunit beta-1 × 1 （P15431） Gamma-aminobutyric acid receptor subunit alpha-6 × 1 （P30191） Gamma-aminobutyric acid receptor subunit gamma-2 × 1 （P18508） 8E3 fab heavy chain × 1 8E3 fab light chain × 1 ;alpha-D-mannopyranose-(1-2)-alpha-D-mannopyranose-(1-3)-[alpha-D-mannopyranose-(1-3)-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 ; × 1 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose × 4 beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose × 3 ABU GAMMA-AMINO-BUTANOIC ACID × 2 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 ELECTRON MICROSCOPY cryo-EM buffer：pH 8 cryo-EM vitrification conditions：Cryogen ETHANE-PROPANE Resolution 2.82 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 9OUP Assembly / Oligomeric State Construct Mutations and Modifications Ligands, Ions and Non-polymers Method and Experimental Conditions Structure Quality
9OUM Native GABA-A receptor from rat cerebella, beta2-alpha1-beta1-alpha6-gamma2 subtype, in complex with GABA and PZ-II-029 Deposited 2025-05-29 Different ligand/ion Different structure-quality metrics Assembly 1 Other combination Heteromer；Protein × 7 PDB declaration: heptameric
Chain E 1–474（474 aa）
Not recorded ABU GAMMA-AMINO-BUTANOIC ACID × 2 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 A1CEP 7-methoxy-2-(4-methoxyphenyl)-1,2-dihydro-3H-pyrazolo[4,3-c]quinolin-3-one × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE-PROPANE
Resolution 2.90 Å
9OUN Native GABA-A receptor from rat cerebella, beta2-alpha1-beta2-alpha1-gamma2 subtype, in complex with GABA and PZ-II-029 Deposited 2025-05-29 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different structure-quality metrics Assembly 1 Other combination Heteromer；Protein × 9 PDB declaration: nonameric
Chain B 1–474（474 aa）
Chain E 1–474（474 aa）
Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 ABU GAMMA-AMINO-BUTANOIC ACID × 2 A1CEP 7-methoxy-2-(4-methoxyphenyl)-1,2-dihydro-3H-pyrazolo[4,3-c]quinolin-3-one × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE-PROPANE
Resolution 2.74 Å
9OUQ Native GABA-A receptor from rat cerebella, beta1-alpha1-beta2-alpha1-gamma2 subtype, in complex with GABA Deposited 2025-05-29 Different oligomeric state Different structure-quality metrics Assembly 1 Other combination Heteromer；Protein × 9 PDB declaration: nonameric
Chain B 1–474（474 aa）
Not recorded ABU GAMMA-AMINO-BUTANOIC ACID × 2 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE-PROPANE
Resolution 2.89 Å
9OUR Native GABA-A receptor from rat cerebella, beta2-alpha1-beta2-alpha1-gamma2 subtype, in complex with GABA Deposited 2025-05-29 Different construct Different mutation/modification Different oligomeric state Different structure-quality metrics Assembly 1 Other combination Heteromer；Protein × 9 PDB declaration: nonameric
Chain B 1–474（474 aa）
Chain E 1–474（474 aa）
Not recorded ABU GAMMA-AMINO-BUTANOIC ACID × 2 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE-PROPANE
Resolution 2.84 Å
9OV4 Native GABA-A receptor from rat cerebella, beta1-alpha1-beta2-alpha1-gamma2 subtype, in complex with GABA and PZ-II-029 Deposited 2025-05-29 Different oligomeric state Different ligand/ion Different structure-quality metrics Assembly 1 Other combination Heteromer；Protein × 9 PDB declaration: nonameric
Chain B 1–474（474 aa）
Not recorded ABU GAMMA-AMINO-BUTANOIC ACID × 2 A1CEP 7-methoxy-2-(4-methoxyphenyl)-1,2-dihydro-3H-pyrazolo[4,3-c]quinolin-3-one × 1 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE-PROPANE
Resolution 2.93 Å

5 other PDB entries and 5 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name GBRB2_RAT
Isoform —
PDB entities 5
Chains and sequence ranges Author chain E； PDBConstruct 1–474； UniProt 1–474

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

SAXS profile for 9oup

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 9oup
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2. Structure Basics 2. Structure Basics

Entry ID entry_id9oup
Deposition date deposition_date2025-05-29
Structure title titleNative GABA-A receptor from rat cerebella, beta2-alpha1-beta1-alpha6-gamma2 subtype, in complex with GABA
Keywords keywordsneurotransmitter receptor, cys-loop receptor, ligand-gated ion channel, MEMBRANE PROTEIN; MEMBRANE PROTEIN
Experimental Method methodELECTRON MICROSCOPY
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3. SAXS Parameters (CRYSOL theoretical calculation) 3. SAXS Parameters (CRYSOL)

Radius of gyration Rg (Guinier) rg_guinier35.40 Å
Radius of gyration Rg (electron density) rg_electron34.70 Å
Forward intensity I(0) i0345811000.00
Molecular weight molecular_weight151320.0 kDa
Excluded volume excluded_volume189790 ų
Envelope volume envelope_volume243590 ų
Hydration-shell volume shell_volume57055 ų
Envelope diameter envelope_diameter120.3 Å
Shell Rg shell_rg42.45 Å
Envelope Rg envelope_rg34.47 Å
Shape Rg shape_rg34.69 Å
Total Rg total_rg35.28 Å
Total atoms total_atoms21002
Residues n_residues1272
Spherical-harmonic order n_harmonics20
q range q_range— – 0.5000 Å−1
Data points n_points101
Shell type shell_typedirectional
Solvent electron density solvent_density0.3340 e/ų
Shell contrast contrast_shell0.0300 e/ų
CRYSOL version crysol_version4.1.3
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4. P(r) Distance Distribution (GNOM inversion) 4. P(r) Analysis (GNOM)

Maximum dimension Dmax dmax114.8 Å
Rg (real space) rg_real35.31 Å
Rg uncertainty (real space) rg_real_error0.65 Å
I(0) (real space) i0_real3.4580e+08
I(0) uncertainty (real space) i0_real_error5.1200e+06
Rg (reciprocal space) rg_reciprocal35.36 Å
I(0) (reciprocal space) i0_reciprocal345800000.0000
Solution quality estimate total_estimate0.8718
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary45.9 Å
Skewness Skewness skewness0.315
Kurtosis Kurtosis kurtosis-0.212
Angular range angular_range— – 0.2250 Å−1
Current regularization parameter α current_alpha0.0001
Highest regularization parameter α highest_alpha126000000.0000
Real-space data points n_real_points46
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.833; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.994; Smooth: 0.836
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5. Crystallography and Experiment 5. Crystallography & Experiment

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6. Entities and Polymers Entities & Polymers (12)

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8. Citations (1)

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9. Files and Curves (10)