Annotations: 1AYR

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1ayra1	All beta proteins	Immunoglobulin-like beta-sandwich	E set domains	Arrestin/Vps26-like	Arrestin	(Bos taurus ) [TaxId: 9913 ],	SCOPe (2.08)
D	d1ayrd1	All beta proteins	Immunoglobulin-like beta-sandwich	E set domains	Arrestin/Vps26-like	Arrestin	(Bos taurus ) [TaxId: 9913 ],	SCOPe (2.08)
B	d1ayrb1	All beta proteins	Immunoglobulin-like beta-sandwich	E set domains	Arrestin/Vps26-like	Arrestin	(Bos taurus ) [TaxId: 9913 ],	SCOPe (2.08)
C	d1ayrc1	All beta proteins	Immunoglobulin-like beta-sandwich	E set domains	Arrestin/Vps26-like	Arrestin	(Bos taurus ) [TaxId: 9913 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Arrestin/Vps26-like	8055049	3002071	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	Arrestin/Vps26-like	8055049	3002071	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Arrestin/Vps26-like	8055049	3002071	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	Arrestin/Vps26-like	8055049	3002071	SCOP2B (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	Arrestin_C	e1ayrA2	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: Arrestin_C	ECOD (1.6)
A	Arrestin_N	e1ayrA1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: Arrestin_N	ECOD (1.6)
D	Arrestin_C	e1ayrD2	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: Arrestin_C	ECOD (1.6)
D	Arrestin_N	e1ayrD1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: Arrestin_N	ECOD (1.6)
B	Arrestin_C	e1ayrB2	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: Arrestin_C	ECOD (1.6)
B	Arrestin_N	e1ayrB1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: Arrestin_N	ECOD (1.6)
C	Arrestin_C	e1ayrC2	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: Arrestin_C	ECOD (1.6)
C	Arrestin_N	e1ayrC1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: Arrestin_N	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	2.60.40.840	Mainly Beta	Sandwich	Immunoglobulin-like		CATH (4.3.0)
A	2.60.40.640	Mainly Beta	Sandwich	Immunoglobulin-like		CATH (4.3.0)
D	2.60.40.840	Mainly Beta	Sandwich	Immunoglobulin-like		CATH (4.3.0)
D	2.60.40.640	Mainly Beta	Sandwich	Immunoglobulin-like		CATH (4.3.0)
B	2.60.40.840	Mainly Beta	Sandwich	Immunoglobulin-like		CATH (4.3.0)
B	2.60.40.640	Mainly Beta	Sandwich	Immunoglobulin-like		CATH (4.3.0)
C	2.60.40.840	Mainly Beta	Sandwich	Immunoglobulin-like		CATH (4.3.0)
C	2.60.40.640	Mainly Beta	Sandwich	Immunoglobulin-like		CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C, D	PF00339	Arrestin (or S-antigen), N-terminal domain (Arrestin_N)	Arrestin (or S-antigen), N-terminal domain	Ig-like beta-sandwich fold. Scop reports duplication with C-terminal domain.	Domain
A, B, C, D	PF02752	Arrestin (or S-antigen), C-terminal domain (Arrestin_C)	Arrestin (or S-antigen), C-terminal domain	Ig-like beta-sandwich fold. Scop reports duplication with N-terminal domain.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D	ARRESTIN	opsin binding protein binding binding phosphoprotein binding signaling receptor binding G protein-coupled receptor binding identical protein binding	response to light stimulus response to stimulus response to radiation response to abiotic stimulus cellular response to stimulus regulation of biological process regulation of cellular process signaling biological regulation cellular process signal transduction cell communication negative adaptation of signaling pathway import into cell response to light stimulus response to stimulus response to radiation response to abiotic stimulus cellular response to stimulus regulation of biological process regulation of cellular process signaling biological regulation cellular process signal transduction cell communication negative adaptation of signaling pathway import into cell receptor internalization negative regulation of signaling transport negative regulation of biological process desensitization of G protein-coupled receptor signaling pathway regulation of signal transduction negative regulation of G protein-coupled receptor signaling pathway negative regulation of cell communication vesicle-mediated transport localization negative regulation of cellular process regulation of G protein-coupled receptor signaling pathway G protein-coupled receptor internalization regulation of signaling negative regulation of response to stimulus negative regulation of signal transduction establishment of localization regulation of response to stimulus adaptation of signaling pathway regulation of cell communication G protein-coupled receptor signaling pathway receptor-mediated endocytosis endocytosis	membrane cellular anatomical entity photoreceptor inner segment intracellular anatomical structure cytoplasm cytosol membrane-bounded organelle non-motile cilium 9+0 non-motile cilium cilium neuron projection photoreceptor outer segment plasma membrane bounded cell projection cell projection membrane cellular anatomical entity photoreceptor inner segment intracellular anatomical structure cytoplasm cytosol membrane-bounded organelle non-motile cilium 9+0 non-motile cilium cilium neuron projection photoreceptor outer segment plasma membrane bounded cell projection cell projection photoreceptor cell cilium organelle

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D	IPR017864	Arrestin, conserved site	Conserved Site
A, B, C, D	IPR000698	Arrestin	Family
A, B, C, D	IPR011021	Arrestin-like, N-terminal	Domain
A, B, C, D	IPR011022	Arrestin C-terminal-like domain	Domain
A, B, C, D	IPR014753	Arrestin, N-terminal	Homologous Superfamily
A, B, C, D	IPR014756	Immunoglobulin E-set	Homologous Superfamily
A, B, C, D	IPR014752	Arrestin-like, C-terminal	Homologous Superfamily

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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 R01GM133198.