Annotations: 2ACX

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	RGS	e2acxA6	A: alpha bundles	X: Regulator of G-protein signaling, RGS (From Topology)	H: Regulator of G-protein signaling, RGS (From Topology)	T: Regulator of G-protein signaling, RGS	F: RGS	ECOD (1.6)
A	Pkinase_Tyr	e2acxA5	A: a+b complex topology	X: Protein kinase/SAICAR synthase/ATP-grasp (From Homology)	H: Protein kinase/SAICAR synthase/ATP-grasp	T: Protein kinase	F: Pkinase_Tyr	ECOD (1.6)
B	RGS	e2acxB2	A: alpha bundles	X: Regulator of G-protein signaling, RGS (From Topology)	H: Regulator of G-protein signaling, RGS (From Topology)	T: Regulator of G-protein signaling, RGS	F: RGS	ECOD (1.6)
B	Pkinase_Tyr	e2acxB1	A: a+b complex topology	X: Protein kinase/SAICAR synthase/ATP-grasp (From Homology)	H: Protein kinase/SAICAR synthase/ATP-grasp	T: Protein kinase	F: Pkinase_Tyr	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.10.167.10	Mainly Alpha	Orthogonal Bundle	Regulator of G-protein Signalling 4	domain 2	CATH (4.3.0)
A	3.30.200.20	Alpha Beta	2-Layer Sandwich	Phosphorylase Kinase	domain 1	CATH (4.3.0)
A	1.10.510.10	Mainly Alpha	Orthogonal Bundle	Transferase(Phosphotransferase)	domain 1	CATH (4.3.0)
B	1.10.167.10	Mainly Alpha	Orthogonal Bundle	Regulator of G-protein Signalling 4	domain 2	CATH (4.3.0)
B	3.30.200.20	Alpha Beta	2-Layer Sandwich	Phosphorylase Kinase	domain 1	CATH (4.3.0)
B	1.10.510.10	Mainly Alpha	Orthogonal Bundle	Transferase(Phosphotransferase)	domain 1	CATH (4.3.0)

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	G protein-coupled receptor kinase 6	binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding organic cyclic compound binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding organic cyclic compound binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding catalytic activity, acting on a protein beta-adrenergic receptor kinase activity kinase activity protein kinase activity transferase activity catalytic activity phosphotransferase activity, alcohol group as acceptor transferase activity, transferring phosphorus-containing groups protein serine/threonine kinase activity G protein-coupled receptor kinase activity	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 G protein-coupled receptor signaling pathway cellular process signal transduction 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 G protein-coupled receptor signaling pathway cellular process signal transduction regulation of G protein-coupled receptor signaling pathway cell surface receptor signaling pathway Wnt signaling pathway	cellular anatomical structure membrane cell periphery plasma membrane intracellular anatomical structure cytoplasm

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR016137	RGS 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

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A, B	Pharos: P43250	rheumatoid arthritis chronic kidney disease Infiltrating duct carcinoma of female breast nephrolithiasis ulcerative colitis Crohn disease inflammatory bowel disease osteosarcoma schizophrenia gastric adenocarcinoma malignant mesothelioma psoriasis Sjogren syndrome

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.