2ZIY

Crystal structure of squid rhodopsin

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Membrane Protein Annotation: OPM
Membrane Protein Annotation: PDBTM
Membrane Protein Annotation: MemProtMD
Membrane Protein Annotation: mpstruc

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	Class A (rhodopsin) G protein-coupled receptor-like	8091195	4001858	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	G protein-coupled receptor-like	8091196	3000473	SCOP2 (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	7tm_1	e2ziyA1	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)

Domain Annotation: CATH CATH Database Homepage

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)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF00001	7 transmembrane receptor (rhodopsin family) (7tm_1)	7 transmembrane receptor (rhodopsin family)	This family contains, amongst other G-protein-coupled receptors (GCPRs), members of the opsin family, which have been considered to be typical members of the rhodopsin superfamily. They share several motifs, mainly the seven transmembrane helices, GC ...	This family contains, amongst other G-protein-coupled receptors (GCPRs), members of the opsin family, which have been considered to be typical members of the rhodopsin superfamily. They share several motifs, mainly the seven transmembrane helices, GCPRs of the rhodopsin superfamily. All opsins bind a chromophore, such as 11-cis-retinal. The function of most opsins other than the photoisomerases is split into two steps: light absorption and G-protein activation. Photoisomerases, on the other hand, are not coupled to G-proteins - they are thought to generate and supply the chromophore that is used by visual opsins [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	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 cell projection

InterPro: Protein Family Classification InterPro Database Homepage

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

Membrane Protein Annotation: OPM OPM Database Homepage

Chains	External Link	Type	Class	Superfamily	Family
A	OPM	Transmembrane	Alpha-helical polytopic	Rhodopsin-like receptors and pumps	G-protein coupled receptors, family A

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

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

Membrane Protein Annotation: MemProtMD MemProtMD Database Homepage

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

Membrane Protein Annotation: mpstruc mpstruc Database Homepage

Chains	Resource Link	Group	Subgroup	Protein
A	mpstruc	TRANSMEMBRANE PROTEINS: ALPHA-HELICAL	G Protein-Coupled Receptors: Class A	Rhodopsin, Squid

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.