1EQ8

THREE-DIMENSIONAL STRUCTURE OF THE PENTAMERIC HELICAL BUNDLE OF THE ACETYLCHOLINE RECEPTOR M2 TRANSMEMBRANE SEGMENT

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Membrane Protein Annotation: PDBTM
Membrane Protein Annotation: MemProtMD

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1eq8a_	Peptides	Transmembrane helical fragments	Transmembrane helical fragments	Transmembrane helical fragments	Membrane spanning segment 2 (M2) of the acetylcholine receptor	Pacific electric ray (Tetronarce californica ) [TaxId: 7787 ],	SCOPe (2.08)
B	d1eq8b_	Peptides	Transmembrane helical fragments	Transmembrane helical fragments	Transmembrane helical fragments	Membrane spanning segment 2 (M2) of the acetylcholine receptor	Pacific electric ray (Tetronarce californica ) [TaxId: 7787 ],	SCOPe (2.08)
C	d1eq8c_	Peptides	Transmembrane helical fragments	Transmembrane helical fragments	Transmembrane helical fragments	Membrane spanning segment 2 (M2) of the acetylcholine receptor	Pacific electric ray (Tetronarce californica ) [TaxId: 7787 ],	SCOPe (2.08)
D	d1eq8d_	Peptides	Transmembrane helical fragments	Transmembrane helical fragments	Transmembrane helical fragments	Membrane spanning segment 2 (M2) of the acetylcholine receptor	Pacific electric ray (Tetronarce californica ) [TaxId: 7787 ],	SCOPe (2.08)
E	d1eq8e_	Peptides	Transmembrane helical fragments	Transmembrane helical fragments	Transmembrane helical fragments	Membrane spanning segment 2 (M2) of the acetylcholine receptor	Pacific electric ray (Tetronarce californica ) [TaxId: 7787 ],	SCOPe (2.08)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D, E	ACETYLCHOLINE RECEPTOR PROTEIN	transmitter-gated monoatomic ion channel activity monoatomic cation transmembrane transporter activity molecular transducer activity monoatomic ion channel activity transmitter-gated monoatomic ion channel activity involved in regulation of postsynaptic membrane potential neurotransmitter receptor activity ligand-gated channel activity postsynaptic neurotransmitter receptor activity passive transmembrane transporter activity acetylcholine-gated monoatomic cation-selective channel activity transporter activity ligand-gated monoatomic cation channel activity gated channel activity signaling receptor activity transmitter-gated monoatomic ion channel activity monoatomic cation transmembrane transporter activity molecular transducer activity monoatomic ion channel activity transmitter-gated monoatomic ion channel activity involved in regulation of postsynaptic membrane potential neurotransmitter receptor activity ligand-gated channel activity postsynaptic neurotransmitter receptor activity passive transmembrane transporter activity acetylcholine-gated monoatomic cation-selective channel activity transporter activity ligand-gated monoatomic cation channel activity gated channel activity signaling receptor activity excitatory extracellular ligand-gated monoatomic ion channel activity ligand-gated monoatomic ion channel activity extracellular ligand-gated monoatomic ion channel activity monoatomic cation channel activity neurotransmitter receptor activity involved in regulation of postsynaptic membrane potential channel activity monoatomic ion transmembrane transporter activity transmitter-gated channel activity transmembrane transporter activity transmembrane signaling receptor activity	-	cell periphery postsynapse cellular anatomical structure postsynaptic membrane synapse cell junction membrane plasma membrane plasma membrane region synaptic membrane

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D, E	IPR002394	Nicotinic acetylcholine receptor	Family
A, B, C, D, E	IPR006029	Neurotransmitter-gated ion-channel transmembrane domain	Domain
A, B, C, D, E	IPR018000	Neurotransmitter-gated ion-channel, conserved site	Conserved Site
A, B, C, D, E	IPR038050	Neuronal acetylcholine receptor	Homologous Superfamily
A, B, C, D, E	IPR006202	Neurotransmitter-gated ion-channel ligand-binding domain	Domain
A, B, C, D, E	IPR036719	Neurotransmitter-gated ion-channel transmembrane domain superfamily	Homologous Superfamily
A, B, C, D, E	IPR036734	Neurotransmitter-gated ion-channel ligand-binding domain superfamily	Homologous Superfamily
A, B, C, D, E	IPR006201	Neurotransmitter-gated ion-channel	Family

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

Chains	External Link	Comment
A, B, C, D, E	PDBTM	Annotated as membrane protein by PDBTM

Membrane Protein Annotation: MemProtMD MemProtMD Database Homepage

Chains	External Link	Comment
A, B, C, D, E	MemProtMD	Annotated as membrane protein by MemProtMD

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.