3AYN | pdb_00003ayn

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	G protein-coupled receptor-like	8091196	3000473	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	G protein-coupled receptor-like	8091196	3000473	SCOP2B (2022-06-29)

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	7tm_1	e3aynA1	A: alpha bundles	X: Family A G protein-coupled receptor-like (From Topology)	H: Family A G protein-coupled receptor-like (From Topology)	T: Family A G protein-coupled receptor-like	F: 7tm_1	ECOD (1.6)
B	7tm_1	e3aynB1	A: alpha bundles	X: Family A G protein-coupled receptor-like (From Topology)	H: Family A G protein-coupled receptor-like (From Topology)	T: Family A G protein-coupled receptor-like	F: 7tm_1	ECOD (1.6)

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.20.1070.10	Mainly Alpha	Up-down Bundle	Rhopdopsin 7-helix transmembrane proteins	Rhodopsin 7-helix transmembrane proteins	CATH (4.3.0)
B	1.20.1070.10	Mainly Alpha	Up-down Bundle	Rhopdopsin 7-helix transmembrane proteins	Rhodopsin 7-helix transmembrane proteins	CATH (4.3.0)

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Rhodopsin	vitamin binding binding retinal binding isoprenoid binding retinoid binding lipid binding small molecule binding molecular transducer activity G protein-coupled receptor activity transmembrane signaling receptor activity signaling receptor activity photoreceptor activity	multicellular organismal process sensory perception of light stimulus system process sensory perception nervous system process visual perception phototransduction cellular response to stimulus detection of light stimulus response to light stimulus detection of external stimulus regulation of biological process regulation of cellular process response to stimulus multicellular organismal process sensory perception of light stimulus system process sensory perception nervous system process visual perception phototransduction cellular response to stimulus detection of light stimulus response to light stimulus detection of external stimulus regulation of biological process regulation of cellular process response to stimulus signaling biological regulation response to external stimulus detection of abiotic stimulus cell communication detection of stimulus cellular process response to abiotic stimulus response to radiation signal transduction	cellular anatomical structure membrane cell periphery plasma membrane

Chains	Accession	Name	Type
A, B	IPR006031	XYPPX repeat	Repeat
A, B	IPR027430	Visual pigments (opsins) retinal binding site	Binding Site
A, B	IPR000276	G protein-coupled receptor, rhodopsin-like	Family
A, B	IPR050125	G-protein coupled receptor opsins	Family
A, B	IPR017452	GPCR, rhodopsin-like, 7TM	Domain
A, B	IPR001760	Opsin	Family

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

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

Chains	Resource Link	Group	Subgroup	Protein
A, B	mpstruc	TRANSMEMBRANE PROTEINS: ALPHA-HELICAL	G Protein-Coupled Receptors: Class A	Rhodopsin, Squid; 9-cis isorhodopsin (Iso)

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. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.

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