6dw1

Cryo-EM structure of the benzodiazepine-sensitive alpha1beta1gamma2S tri-heteromeric GABAA receptor in complex with GABA (ECD map)

Method: ELECTRON MICROSCOPY

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

Gamma-aminobutyric acid receptor subunit gamma-2

Rattus norvegicus

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Other combination	Heteromer	Protein 5 其他Polymer 6	Gamma-aminobutyric acid receptor subunit alpha-1,Gamma-aminobutyric acid receptor subunit alpha-1 × 2 （P62813） Gamma-aminobutyric acid receptor subunit beta-1,Gamma-aminobutyric acid receptor subunit beta-1 × 2 （P15431） ;alpha-D-mannopyranose-(1-3)-beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose ; × 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 beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose × 2 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose × 2 GAMMA-AMINO-BUTANOIC ACID × 3	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	GBRG2_RAT
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain D； PDBConstruct 1–466； UniProt 1–466

Gamma-aminobutyric acid receptor subunit alpha-1,Gamma-aminobutyric acid receptor subunit alpha-1

Rattus norvegicus

UniProt P62813

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Other combination	Heteromer	Protein 5 其他Polymer 6	Gamma-aminobutyric acid receptor subunit gamma-2 × 1 （P18508） Gamma-aminobutyric acid receptor subunit beta-1,Gamma-aminobutyric acid receptor subunit beta-1 × 2 （P15431） ;alpha-D-mannopyranose-(1-3)-beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose ; × 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 beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose × 2 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose × 2 GAMMA-AMINO-BUTANOIC ACID × 3	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	GBRA1_RAT
Isoform	—
PDB entities	2
Chains and sequence ranges	Author chain A； PDBConstruct 1–340； UniProt 1–340 Author chain A； PDBConstruct 342–388； UniProt 409–455 Author chain C； PDBConstruct 1–340； UniProt 1–340 Author chain C； PDBConstruct 342–388； UniProt 409–455

Gamma-aminobutyric acid receptor subunit beta-1,Gamma-aminobutyric acid receptor subunit beta-1

Rattus norvegicus

UniProt P15431

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Other combination	Heteromer	Protein 5 其他Polymer 6	Gamma-aminobutyric acid receptor subunit gamma-2 × 1 （P18508） Gamma-aminobutyric acid receptor subunit alpha-1,Gamma-aminobutyric acid receptor subunit alpha-1 × 2 （P62813） ;alpha-D-mannopyranose-(1-3)-beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose ; × 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 beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose × 2 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose × 2 GAMMA-AMINO-BUTANOIC ACID × 3	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	GBRB1_RAT
Isoform	—
PDB entities	3
Chains and sequence ranges	Author chain B； PDBConstruct 1–333； UniProt 1–333 Author chain B； PDBConstruct 336–370； UniProt 440–474 Author chain E； PDBConstruct 1–333； UniProt 1–333 Author chain E； PDBConstruct 336–370； UniProt 440–474

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.

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2. Structure Basics 2. Structure Basics

Entry ID entry_id	6dw1
Deposition date deposition_date	2018-06-26
Structure title title	Cryo-EM structure of the benzodiazepine-sensitive alpha1beta1gamma2S tri-heteromeric GABAA receptor in complex with GABA (ECD map)
Keywords keywords	Neurotransmission, GABA Receptors, GABA, Cys Loop Receptors, Ion Channel, MEMBRANE PROTEIN; MEMBRANE PROTEIN
Experimental Method method	ELECTRON MICROSCOPY

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3. Official assembly/model SAXS Official SAXS Profiles

This page reads only the latest assembly calculations. Every curve maps to an explicit PDB entry, official biological assembly and coordinate model.

6dw1__assembly_1__model_1

Assembly 1 · Model 1 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

6dw1__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

6dw1__assembly_1__model_1 | P(r) · Pending

P(r) will be calculated and displayed separately for the same assembly/model.

Rg（Guinier）	31.10 Å
Rg (electron density)	29.77 Å
Total Rg	30.67 Å
Atom count	8595
Residues	1046
Excluded volume	153130 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`6dw1__assembly_1__model_1`	pentameric （5）	Success	4.1.3-1-20251215 (887e7ef)	View Download

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4. Crystallography and Experiment 4. Crystallography & Experiment

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5. Entities and Polymers Entities & Polymers (8)

Entity 1 Entity 1 polymer

Description description	Gamma-aminobutyric acid receptor subunit gamma-2
Molecular weight formula_weight	56894.9 kDa
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	D
Atom count atom_count	8595

MSSPNTWSTGSTVYSPVFSQKMTLWILLLLSLYPGFTSQKSDDDYEDYASNKTWVLTPKVPEGDVTVILNNLLEGYDNKLRPDIGVKPTLIHTDMYVNSIGPVNAINMEYTIDIFFAQTWYDRRLKFNSTIKVLRLNSNMVGKIWIPDTFFRNSKKADAHWITTPNRMLRIWNDGRVLYTLRLTIDAECQLQLHNFPMDEHSCPLEFSSYGYPREEIVYQWKRSSVEVGDTRSWRLYQFSFVGLRNTTEVVKTTSGDYVVMSVYFDLSRRMGYFTIQTYIPCTLIVVLSWVSFWINKDAVPARTSLGITTVLTMTTLSTIARKSLPKVSYVTAMDLFVSVCFIFVFSALVEYGTLHYFVSNRKPSKDKDKKKKNPAPTIDIRPRSATIQMNNATHLQERDEEYGYECLDGKDCASFFCCFEDCRTGAWRHGRIHIRIAKMDSYARIFFPTAFCLFNLVYWVSYLYLLVPRGSRHHHHHHHHTETSQVAPA

Source Source

Source organism organism	Rattus norvegicus
Common name common_name	Rat
NCBI taxonomy ID ncbi_taxonomy_id	10116
Host organism host_organism	Homo sapiens

Entity 2 Entity 2 polymer

Description description	Gamma-aminobutyric acid receptor subunit alpha-1,Gamma-aminobutyric acid receptor subunit alpha-1
Molecular weight formula_weight	46267.1 kDa
Source method src_method	man
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	C,A

MKKSRGLSDYLWAWTLILSTLSGRSYGQPSQDELKDNTTVFTRILDRLLDGYDNRLRPGLGERVTEVKTDIFVTSFGPVSDHDMEYTIDVFFRQSWKDERLKFKGPMTVLRLNNLMASKIWTPDTFFHNGKKSVAHNMTMPNKLLRITEDGTLLYTMRLTVRAECPMHLEDFPMDAHACPLKFGSYAYTRAEVVYEWTREPARSVVVAEDGSRLNQYDLLGQTVDSGIVQSSTGEYVVMTTHFHLKRKIGYFVIQTYLPCIMTVILSQVSFWLNRESVPARTVFGVTTVLTMTTLSISARNSLPKVAYATAMDWFIAVCYAFVFSALIEFATVNYFTKRGTKKTFNSVSKIDRLSRIAFPLLFGIFNLVYWATYLNREPQLKAPTPHQLVPRGSHHHHHHHH

Source Source

Source organism organism	Rattus norvegicus
Common name common_name	Rat
NCBI taxonomy ID ncbi_taxonomy_id	10116
Host organism host_organism	Homo sapiens

Entity 3 Entity 3 polymer

Description description	Gamma-aminobutyric acid receptor subunit beta-1,Gamma-aminobutyric acid receptor subunit beta-1
Molecular weight formula_weight	44333.0 kDa
Source method src_method	man
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	E,B

MWTVQNRESLGLLSFPVMVAMVCCAHSSNEPSNMSYVKETVDRLLKGYDIRLRPDFGGPPVDVGMRIDVASIDMVSEVNMDYTLTMYFQQSWKDKRLSYSGIPLNLTLDNRVADQLWVPDTYFLNDKKSFVHGVTVKNRMIRLHPDGTVLYGLRITTTAACMMDLRRYPLDEQNCTLEIESYGYTTDDIEFYWNGGEGAVTGVNKIELPQFSIVDYKMVSKKVEFTTGAYPRLSLSFRLKRNIGYFILQTYMPSTLITILSWVSFWINYDASAARVALGITTVLTMTTISTHLRETLPKIPYVKAIDIYLMGCFVFVFLALLEYAFVNYIFFGGTIPDLTDVNSIDKWSRMFFPITFSLFNVVYWLYYVHLVPRGSHHHHHHHH

Source Source

Source organism organism	Rattus norvegicus
Common name common_name	Rat
NCBI taxonomy ID ncbi_taxonomy_id	10116
Host organism host_organism	Homo sapiens

Entity 4 Entity 4 branched

Description description	;alpha-D-mannopyranose-(1-3)-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	748.7 kDa
Source method src_method	man
Copy count entity_count	1

Entity 5 Entity 5 branched

Description description	;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 ;
Molecular weight formula_weight	1235.1 kDa
Source method src_method	man
Copy count entity_count	1

Entity 6 Entity 6 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	2

Entity 7 Entity 7 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	2

Entity 8 Entity 8 non-polymer

Description description	GAMMA-AMINO-BUTANOIC ACID
Molecular weight formula_weight	103.1 kDa
Source method src_method	syn
Copy count entity_count	3

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6. Fold Classification (SCOP + CATH) 10 domains

SCOP 2.08 (5 domains)

Domain ID domain_id	d6dw1a_
Class class	b — All beta proteins
Fold Fold fold	b.96 — Nicotinic receptor ligand binding domain-like
Superfamily Superfamily superfamily	b.96.1 — Nicotinic receptor ligand binding domain-like
Family Family family	b.96.1.0 — automated matches

Domain ID domain_id	d6dw1b_
Class class	b — All beta proteins
Fold Fold fold	b.96 — Nicotinic receptor ligand binding domain-like
Superfamily Superfamily superfamily	b.96.1 — Nicotinic receptor ligand binding domain-like
Family Family family	b.96.1.0 — automated matches

Domain ID domain_id	d6dw1c_
Class class	b — All beta proteins
Fold Fold fold	b.96 — Nicotinic receptor ligand binding domain-like
Superfamily Superfamily superfamily	b.96.1 — Nicotinic receptor ligand binding domain-like
Family Family family	b.96.1.0 — automated matches

Domain ID domain_id	d6dw1d_
Class class	b — All beta proteins
Fold Fold fold	b.96 — Nicotinic receptor ligand binding domain-like
Superfamily Superfamily superfamily	b.96.1 — Nicotinic receptor ligand binding domain-like
Family Family family	b.96.1.0 — automated matches

Domain ID domain_id	d6dw1e_
Class class	b — All beta proteins
Fold Fold fold	b.96 — Nicotinic receptor ligand binding domain-like
Superfamily Superfamily superfamily	b.96.1 — Nicotinic receptor ligand binding domain-like
Family Family family	b.96.1.0 — automated matches

CATH v4.4 (5 domains)

Domain ID domain_id	6dw1A00
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	6dw1B00
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	6dw1C00
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	6dw1D00
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	6dw1E00
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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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	3.10 Å
Resolution测定Method resolution_method	—
颗粒数 num_particles	68499

Cryo-EM structure of the benzodiazepine-sensitive alpha1beta1gamma2S tri-heteromeric GABAA receptor in complex with GABA (ECD map)

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

Gamma-aminobutyric acid receptor subunit gamma-2

State in the Current Structure

Other States of the Same Protein in the Database

Gamma-aminobutyric acid receptor subunit alpha-1,Gamma-aminobutyric acid receptor subunit alpha-1

State in the Current Structure

Other States of the Same Protein in the Database

Gamma-aminobutyric acid receptor subunit beta-1,Gamma-aminobutyric acid receptor subunit beta-1

State in the Current Structure

Other States of the Same Protein in the Database

2. Structure Basics 2. Structure Basics

3. Official assembly/model SAXS Official SAXS Profiles

6dw1__assembly_1__model_1

6dw1__assembly_1__model_1 | I(q)

6dw1__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

冷冻电镜 EM 3D

5. Entities and Polymers Entities & Polymers (8)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 polymer

Polymer Polymer

Source Source

Entity 3 Entity 3 polymer

Polymer Polymer

Source Source

Entity 4 Entity 4 branched

Entity 5 Entity 5 branched

Entity 6 Entity 6 branched

Entity 7 Entity 7 branched

Entity 8 Entity 8 non-polymer

6. Fold Classification (SCOP + CATH) 10 domains

SCOP 2.08 (5 domains)

CATH v4.4 (5 domains)

7. Citations (1)

Cryo-EM structure of the benzodiazepine-sensitive alpha1beta1gamma2S tri-heteromeric GABAA receptor in complex with GABA (ECD map)

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

Gamma-aminobutyric acid receptor subunit gamma-2

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

Gamma-aminobutyric acid receptor subunit alpha-1,Gamma-aminobutyric acid receptor subunit alpha-1

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

Gamma-aminobutyric acid receptor subunit beta-1,Gamma-aminobutyric acid receptor subunit beta-1

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

2. Structure Basics 2. Structure Basics

3. Official assembly/model SAXS Official SAXS Profiles

6dw1__assembly_1__model_1

6dw1__assembly_1__model_1 | I(q)

6dw1__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

冷冻电镜 EM 3D

5. Entities and Polymers Entities & Polymers (8)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 polymer

Polymer Polymer

Source Source

Entity 3 Entity 3 polymer

Polymer Polymer

Source Source

Entity 4 Entity 4 branched

Entity 5 Entity 5 branched

Entity 6 Entity 6 branched

Entity 7 Entity 7 branched

Entity 8 Entity 8 non-polymer

6. Fold Classification (SCOP + CATH) 10 domains

SCOP 2.08 (5 domains)

CATH v4.4 (5 domains)

7. Citations (1)