Annotations: 3C4Y

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B		e3c4yB1	A: HTH	X: HTH	H: winged helix domain	T: RB_A	F:	ECOD (20:10:01)
A		e3c4yA1	A: HTH	X: HTH	H: tetra-helical, lambda repressor-like	T: Cellulase	F:	ECOD (20:10:01)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF00615	Regulator of G protein signaling domain (RGS)	Regulator of G protein signaling domain	RGS family members are GTPase-activating proteins for heterotrimeric G-protein alpha-subunits.	Domain
A, B	PF00069	Protein kinase domain (Pkinase)	Protein kinase domain		Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Rhodopsin kinase	binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding protein serine/threonine kinase activity catalytic activity, acting on a protein kinase activity protein kinase activity transferase activity G protein-coupled receptor kinase activity catalytic activity rhodopsin kinase activity phosphotransferase activity, alcohol group as acceptor transferase activity, transferring phosphorus-containing groups	cellular response to stimulus regulation of biological process regulation of signaling regulation of cellular process response to stimulus signaling biological regulation regulation of signal transduction cell communication regulation of response to stimulus regulation of cell communication cellular process signal transduction multicellular organismal process cellular response to stimulus regulation of biological process regulation of signaling regulation of cellular process response to stimulus signaling biological regulation regulation of signal transduction cell communication regulation of response to stimulus regulation of cell communication cellular process signal transduction multicellular organismal process sensory perception of light stimulus system process sensory perception nervous system process visual perception response to light stimulus regulation of response to external stimulus regulation of opsin-mediated signaling pathway detection of abiotic stimulus cellular response to environmental stimulus cellular response to light stimulus regulation of G protein-coupled receptor signaling pathway detection of light stimulus phototransduction detection of external stimulus detection of visible light response to external stimulus cellular response to radiation detection of stimulus response to radiation response to abiotic stimulus G protein-coupled receptor signaling pathway cellular response to abiotic stimulus G protein-coupled opsin signaling pathway phototransduction, visible light protein phosphorylation protein autophosphorylation phosphorylation primary metabolic process macromolecule modification phosphate-containing compound metabolic process metabolic process protein metabolic process macromolecule metabolic process protein modification process phosphorus metabolic process	membrane-bounded organelle non-motile cilium membrane 9+0 non-motile cilium cilium neuron projection photoreceptor disc membrane photoreceptor outer segment plasma membrane bounded cell projection cell projection cellular anatomical structure photoreceptor cell cilium organelle organelle membrane membrane-bounded organelle non-motile cilium membrane 9+0 non-motile cilium cilium neuron projection photoreceptor disc membrane photoreceptor outer segment plasma membrane bounded cell projection cell projection cellular anatomical structure photoreceptor cell cilium organelle organelle membrane intracellular anatomical structure cytoplasm

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR016137	RGS domain	Domain
A, B	IPR037716	Rhodopsin kinase, catalytic domain	Domain
A, B	IPR017441	Protein kinase, ATP binding site	Binding Site
A, B	IPR036305	RGS domain superfamily	Homologous Superfamily
A, B	IPR044926	RGS, subdomain 2	Homologous Superfamily
A, B	IPR011009	Protein kinase-like domain superfamily	Homologous Superfamily
A, B	IPR000719	Protein kinase domain	Domain
A, B	IPR000961	AGC-kinase, C-terminal	Domain
A, B	IPR000239	GPCR kinase	Family
A, B	IPR008271	Serine/threonine-protein kinase, active site	Active Site

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.