PDB entry 2bg9
REFINED STRUCTURE OF THE NICOTINIC ACETYLCHOLINE RECEPTOR AT 4A RESOLUTION.
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Quaternary structure
The structure was published by Unwin, N., in 2005 in a paper entitled "Refined Structure of the Nicotinic Acetylcholine Receptor at 4A Resolution" (abstract ).
The structure
was determined using
Electron microscopy
at a resolution of 4.0 Å and deposited in 2004.
The experimental data on which the structure is based was not deposited.
This entry contains 5 copies of 4 unique biopolymers (complete list ).
The molecule most likely forms heteropentamers.
The following tables show cross-reference information to other databases (to obtain a list of all PDB entries sharing the same property or classification, click on the magnifying glass icon):
Chain
Name
UniProt
Name of source organism
% of UniProt sequence present in the sample
Residues in the sample molecules
% of residues observed
A
ACETYLCHOLINE RECEPTOR PROTEIN, ALPHA CHAIN
P02711 (25-461) (ACHA_TORMA)
Torpedo marmorata
< 90%
370
100%
D
ACETYLCHOLINE RECEPTOR PROTEIN, ALPHA CHAIN
P02711 (25-461) (ACHA_TORMA)
Torpedo marmorata
< 90%
370
100%
B
ACETYLCHOLINE RECEPTOR PROTEIN, BETA CHAIN
Q6S3I0 (25-493) (Q6S3I0_TORMA)
Torpedo marmorata
< 90%
370
100%
C
ACETYLCHOLINE RECEPTOR PROTEIN, DELTA CHAIN
Q6S3H8 (22-505) (Q6S3H8_TORMA)
Torpedo marmorata
< 90%
369
100%
E
ACETYLCHOLINE RECEPTOR PROTEIN, GAMMA CHAIN
Q6S3H9 (18-493) (Q6S3H9_TORMA)
Torpedo marmorata
< 90%
370
100%
This entry contains 4 unique UniProt proteins:
UniProt accession
Name
Organism
PDB
P02711 (25 - 461)
ACETYLCHOLINE RECEPTOR PROTEIN, ALPHA CHAIN
Torpedo marmorata
Related PDB sequences UniProt coverage
Q6S3I0 (25 - 493)
ACETYLCHOLINE RECEPTOR PROTEIN, BETA CHAIN
Torpedo marmorata
Related PDB sequences UniProt coverage
Q6S3H8 (22 - 505)
ACETYLCHOLINE RECEPTOR PROTEIN, DELTA CHAIN
Torpedo marmorata
Related PDB sequences UniProt coverage
Q6S3H9 (18 - 493)
ACETYLCHOLINE RECEPTOR PROTEIN, GAMMA CHAIN
Torpedo marmorata
Related PDB sequences UniProt coverage
Chain
Structural classification (CATH)
Sequence family (Pfam)
A, D
Acetylcholine Binding Protein; Chain: A, Neurotransmitter-gated ion-channel transmembrane pore, Chain B Neurotransmitter-gated ion-channel ligand binding domain Neurotransmitter-gated ion-channel transmembrane region
B
Acetylcholine Binding Protein; Chain: A, Neurotransmitter-gated ion-channel transmembrane pore, Chain B Neurotransmitter-gated ion-channel ligand binding domain Neurotransmitter-gated ion-channel transmembrane region
C
Acetylcholine Binding Protein; Chain: A, Neurotransmitter-gated ion-channel transmembrane pore, Chain B Neurotransmitter-gated ion-channel ligand binding domain Neurotransmitter-gated ion-channel transmembrane region
E
Acetylcholine Binding Protein; Chain: A, Neurotransmitter-gated ion-channel transmembrane pore, Chain B Neurotransmitter-gated ion-channel ligand binding domain Neurotransmitter-gated ion-channel transmembrane region
Chain ID
Molecular function (GO)
Biological process (GO)
Cellular component (GO)
A, D
Extracellular ligand-gated ion channel activity Ion channel activity Acetylcholine-activated cation-selective channel activity Ion transport Transport Postsynaptic membrane Membrane Integral to membrane
B
Extracellular ligand-gated ion channel activity Acetylcholine-activated cation-selective channel activity Ion channel activity Ion transport Transport Integral to membrane Postsynaptic membrane Membrane
C
Extracellular ligand-gated ion channel activity Ion channel activity Acetylcholine-activated cation-selective channel activity Ion transport Transport Postsynaptic membrane Membrane Integral to membrane
E
Extracellular ligand-gated ion channel activity Ion channel activity Acetylcholine-activated cation-selective channel activity Ion transport Transport Integral to membrane Membrane Postsynaptic membrane
Chain
InterPro annotation
A, D
Nicotinic acetylcholine receptor Neurotransmitter-gated ion-channel transmembrane domain Neurotransmitter-gated ion-channel Neurotransmitter-gated ion-channel ligand-binding Neurotransmitter-gated ion-channel, conserved site
B
Nicotinic acetylcholine receptor Neurotransmitter-gated ion-channel transmembrane domain Neurotransmitter-gated ion-channel Neurotransmitter-gated ion-channel ligand-binding Neurotransmitter-gated ion-channel, conserved site
C
Nicotinic acetylcholine receptor Neurotransmitter-gated ion-channel transmembrane domain Neurotransmitter-gated ion-channel Neurotransmitter-gated ion-channel ligand-binding Neurotransmitter-gated ion-channel, conserved site
E
Nicotinic acetylcholine receptor Neurotransmitter-gated ion-channel transmembrane domain Neurotransmitter-gated ion-channel Neurotransmitter-gated ion-channel ligand-binding Neurotransmitter-gated ion-channel, conserved site
