4EKC

Structure of human regulator of G protein signaling 2 (RGS2) in complex with murine Galpha-q(R183C)

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Pharos: Disease Associations

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Ras-like P-loop GTPases	8056800	3002022	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	Ras-like P-loop GTPases	8056800	3002022	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	Galpha insert domain-like	8056801	3000669	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	Galpha insert domain-like	8056801	3000669	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	Ras-like P-loop GTPases	8056800	3002022	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	Ras-like P-loop GTPases	8056800	3002022	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Regulator of G-protein signaling, RGS	8062641	3000835	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	Regulator of G-protein signaling, RGS	8062641	3000835	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	G-alpha	e4ekcA4	A: alpha arrays	X: Transducin (alpha subunit), insertion domain (From Topology)	H: Transducin (alpha subunit), insertion domain (From Topology)	T: Transducin (alpha subunit), insertion domain	F: G-alpha	ECOD (1.6)
A	Ras	e4ekcA3	A: a/b three-layered sandwiches	X: P-loop domains-like	H: P-loop domains-related	T: P-loop containing nucleoside triphosphate hydrolases	F: Ras	ECOD (1.6)
C	G-alpha	e4ekcC4	A: alpha arrays	X: Transducin (alpha subunit), insertion domain (From Topology)	H: Transducin (alpha subunit), insertion domain (From Topology)	T: Transducin (alpha subunit), insertion domain	F: G-alpha	ECOD (1.6)
C	Ras	e4ekcC3	A: a/b three-layered sandwiches	X: P-loop domains-like	H: P-loop domains-related	T: P-loop containing nucleoside triphosphate hydrolases	F: Ras	ECOD (1.6)
B	RGS	e4ekcB1	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)
D	RGS	e4ekcD1	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)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
B, D	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

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, C	Guanine nucleotide-binding protein G(q) subunit alpha	GTPase regulator activity enzyme regulator activity enzyme activator activity GTPase activator activity molecular function activator activity nucleoside-triphosphatase regulator activity molecular function regulator activity protein-containing complex binding binding G-protein beta/gamma-subunit complex binding phosphoric ester hydrolase activity alkylglycerophosphoethanolamine phosphodiesterase activity hydrolase activity, acting on ester bonds phosphoric diester hydrolase activity GTPase regulator activity enzyme regulator activity enzyme activator activity GTPase activator activity molecular function activator activity nucleoside-triphosphatase regulator activity molecular function regulator activity protein-containing complex binding binding G-protein beta/gamma-subunit complex binding phosphoric ester hydrolase activity alkylglycerophosphoethanolamine phosphodiesterase activity hydrolase activity, acting on ester bonds phosphoric diester hydrolase activity hydrolase activity catalytic activity cation binding ion binding metal ion binding small molecule binding pyrophosphatase activity GTPase activity ribonucleoside triphosphate phosphatase activity hydrolase activity, acting on acid anhydrides, in phosphorus-containing anhydrides hydrolase activity, acting on acid anhydrides guanyl nucleotide binding GTP binding nucleotide binding guanyl ribonucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding organic cyclic compound binding purine nucleotide binding anion binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding G protein activity protein binding signaling receptor binding G protein-coupled receptor binding	developmental process heart development multicellular organism development multicellular organismal process anatomical structure development animal organ development circulatory system development system development system process circulatory system process regulation of blood pressure biological regulation regulation of biological quality blood circulation developmental process heart development multicellular organism development multicellular organismal process anatomical structure development animal organ development circulatory system development system development system process circulatory system process regulation of blood pressure biological regulation regulation of biological quality blood circulation cellular developmental process cell development developmental maturation nervous system development generation of neurons neurogenesis neuron differentiation neuron remodeling anatomical structure maturation cell differentiation neuron development neuron maturation cellular process cell maturation skeletal system development cellular response to stimulus regulation of biological process regulation of cellular process cell surface receptor signaling pathway response to stimulus signaling glutamate receptor signaling pathway cell communication signal transduction pigmentation developmental pigmentation G protein-coupled receptor signaling pathway ion channel modulating, G protein-coupled receptor signaling pathway phospholipase C-activating G protein-coupled receptor signaling pathway regulation of body fluid levels wound healing cell activation hemostasis regulation of cell activation blood coagulation regulation of platelet activation response to stress coagulation regulation of multicellular organismal process response to wounding platelet activation cell population proliferation regulation of smooth muscle cell proliferation positive regulation of cell population proliferation positive regulation of biological process smooth muscle cell proliferation positive regulation of smooth muscle cell proliferation regulation of cell population proliferation muscle cell proliferation positive regulation of cellular process forebrain development central nervous system neuron development central nervous system neuron differentiation head development forebrain generation of neurons brain development forebrain neuron development central nervous system development forebrain neuron differentiation phospholipase C-activating dopamine receptor signaling pathway cellular response to nitrogen compound response to dopamine cellular response to dopamine response to monoamine response to catecholamine cellular response to catecholamine stimulus response to organic cyclic compound G protein-coupled dopamine receptor signaling pathway cellular response to organic cyclic compound response to oxygen-containing compound response to nitrogen compound cellular response to oxygen-containing compound cellular response to chemical stimulus cellular response to monoamine stimulus response to chemical negative regulation of potassium ion transport regulation of localization regulation of potassium ion transport transport regulation of transport negative regulation of monoatomic ion transport regulation of monoatomic ion transport negative regulation of biological process negative regulation of transport establishment of localization metal ion transport localization monoatomic ion transport potassium ion transport monoatomic cation transport regulation of metal ion transport synaptic signaling phospholipase C-activating G protein-coupled acetylcholine receptor signaling pathway cellular response to acetylcholine cell-cell signaling acetylcholine receptor signaling pathway postsynaptic signal transduction G protein-coupled acetylcholine receptor signaling pathway response to acetylcholine cranial skeletal system development negative regulation of programmed cell death regulation of apoptotic process regulation of programmed cell death cell death negative regulation of apoptotic process negative regulation of cellular process apoptotic process programmed cell death action potential regulation of membrane potential maternal behavior behavior parental behavior reproductive process multicellular organismal reproductive process reproductive behavior pigment cell differentiation regulation of developmental process regulation of pigment cell differentiation regulation of cell differentiation melanocyte differentiation regulation of melanocyte differentiation adenylate cyclase-activating G protein-coupled receptor signaling pathway adenylate cyclase-modulating G protein-coupled receptor signaling pathway endothelin receptor signaling pathway protein localization positive regulation of cell communication establishment of protein localization nitrogen compound transport positive regulation of establishment of protein localization cellular macromolecule localization positive regulation of insulin secretion regulation of peptide hormone secretion regulation of hormone levels positive regulation of peptide hormone secretion establishment of protein localization to extracellular region protein secretion regulation of protein secretion regulation of secretion positive regulation of protein localization cellular localization regulation of hormone secretion regulation of protein localization regulation of peptide secretion positive regulation of secretion by cell hormone secretion protein localization to extracellular region positive regulation of protein transport peptide secretion secretion by cell regulation of secretion by cell positive regulation of hormone secretion positive regulation of secretion amide transport signal release positive regulation of peptide secretion regulation of signaling secretion regulation of peptide transport regulation of establishment of protein localization export from cell regulation of protein transport positive regulation of protein secretion peptide transport positive regulation of transport protein transport regulation of cellular localization regulation of insulin secretion peptide hormone secretion macromolecule localization hormone transport regulation of cell communication insulin secretion positive regulation of signaling post-embryonic development ligand-gated ion channel signaling pathway limb development appendage development embryonic limb morphogenesis embryonic morphogenesis embryonic appendage morphogenesis embryo development anatomical structure morphogenesis appendage morphogenesis embryonic digit morphogenesis limb morphogenesis	membrane cellular anatomical entity membrane-bounded organelle intracellular anatomical structure nuclear membrane nucleus intracellular membrane-bounded organelle endomembrane system intracellular organelle organelle envelope organelle nuclear envelope organelle membrane somatodendritic compartment membrane cellular anatomical entity membrane-bounded organelle intracellular anatomical structure nuclear membrane nucleus intracellular membrane-bounded organelle endomembrane system intracellular organelle organelle envelope organelle nuclear envelope organelle membrane somatodendritic compartment cell projection dendrite dendritic tree neuron projection plasma membrane bounded cell projection cytoplasm Golgi apparatus cell body protein-containing complex extrinsic component of plasma membrane catalytic complex plasma membrane protein complex cytoplasmic side of membrane plasma membrane membrane protein complex heterotrimeric G-protein complex side of membrane cell periphery cytoplasmic side of plasma membrane GTPase complex extrinsic component of membrane extrinsic component of cytoplasmic side of plasma membrane membrane microdomain membrane raft plasma membrane raft plasma membrane region caveola synapse cell junction
B, D	Regulator of G-protein signaling 2	enzyme regulator activity adenylate cyclase inhibitor activity cyclase regulator activity molecular function inhibitor activity cyclase inhibitor activity molecular function regulator activity enzyme inhibitor activity adenylate cyclase regulator activity GTPase regulator activity enzyme activator activity GTPase activator activity molecular function activator activity nucleoside-triphosphatase regulator activity protein binding enzyme regulator activity adenylate cyclase inhibitor activity cyclase regulator activity molecular function inhibitor activity cyclase inhibitor activity molecular function regulator activity enzyme inhibitor activity adenylate cyclase regulator activity GTPase regulator activity enzyme activator activity GTPase activator activity molecular function activator activity nucleoside-triphosphatase regulator activity protein binding binding G-protein alpha-subunit binding calmodulin binding cytoskeletal protein binding beta-tubulin binding tubulin binding pyrophosphatase activity GTPase activity ribonucleoside triphosphate phosphatase activity hydrolase activity, acting on acid anhydrides, in phosphorus-containing anhydrides hydrolase activity hydrolase activity, acting on acid anhydrides catalytic activity	multicellular organismal process system process relaxation of cardiac muscle muscle system process relaxation of muscle regulation of localization import into cell negative regulation of amino acid transport regulation of cellular process nitrogen compound transport negative regulation of amine transport carboxylic acid transmembrane transport transport glycine transport multicellular organismal process system process relaxation of cardiac muscle muscle system process relaxation of muscle regulation of localization import into cell negative regulation of amino acid transport regulation of cellular process nitrogen compound transport negative regulation of amine transport carboxylic acid transmembrane transport transport glycine transport negative regulation of biological process regulation of glycine import across plasma membrane amino acid transmembrane transport negative regulation of transport L-amino acid transport negative regulation of glycine import across plasma membrane negative regulation of transmembrane transport localization negative regulation of cellular process regulation of amino acid transport regulation of amino acid transmembrane transport organic acid transmembrane transport regulation of biological process organic anion transport glycine import across plasma membrane carboxylic acid transport regulation of transport import across plasma membrane biological regulation neutral amino acid transport establishment of localization organic cation transport organic acid transport transmembrane transport amino acid transport amine transport regulation of amino acid import across plasma membrane regulation of transmembrane transport negative regulation of organic acid transport regulation of organic acid transport L-alpha-amino acid transmembrane transport cellular process regulation of amine transport amino acid import across plasma membrane developmental process spermatogenesis sexual reproduction reproductive process multicellular organismal reproductive process developmental process involved in reproduction male gamete generation gamete generation cellular biosynthetic process negative regulation of cellular metabolic process regulation of primary metabolic process post-transcriptional regulation of gene expression negative regulation of translation protein metabolic process negative regulation of protein metabolic process negative regulation of macromolecule metabolic process regulation of biosynthetic process cellular metabolic process regulation of protein metabolic process negative regulation of metabolic process regulation of cellular metabolic process primary metabolic process regulation of macromolecule metabolic process gene expression translation macromolecule biosynthetic process negative regulation of cellular biosynthetic process regulation of cellular biosynthetic process regulation of gene expression negative regulation of gene expression biosynthetic process negative regulation of biosynthetic process regulation of translation negative regulation of macromolecule biosynthetic process regulation of macromolecule biosynthetic process metabolic process macromolecule metabolic process regulation of metabolic process regulation of growth negative regulation of muscle hypertrophy response to stimulus regulation of cardiac muscle tissue growth developmental growth regulation of system process negative regulation of muscle cell differentiation regulation of cell differentiation muscle cell differentiation regulation of muscle hypertrophy muscle structure development multicellular organism development muscle adaptation negative regulation of growth cell differentiation regulation of organ growth regulation of heart growth anatomical structure development cardiac muscle tissue growth muscle tissue development cardiac cell development system development heart growth negative regulation of striated muscle cell differentiation negative regulation of cell growth striated muscle hypertrophy tissue development negative regulation of developmental growth regulation of muscle cell differentiation regulation of response to stimulus striated muscle cell differentiation negative regulation of multicellular organismal process regulation of cellular component organization regulation of developmental process cellular developmental process cardiac muscle cell development cell development negative regulation of cell growth involved in cardiac muscle cell development regulation of striated muscle cell differentiation negative regulation of cardiac muscle tissue growth organ growth cell growth striated muscle tissue development cellular component organization negative regulation of organ growth striated muscle cell development muscle cell development cardiac muscle hypertrophy negative regulation of cell differentiation regulation of multicellular organismal process cellular component organization or biogenesis muscle hypertrophy regulation of muscle adaptation heart development regulation of multicellular organismal development regulation of developmental growth negative regulation of heart growth cardiac muscle tissue development developmental cell growth physiological muscle hypertrophy negative regulation of developmental process growth animal organ development cardiac muscle cell differentiation regulation of cell growth involved in cardiac muscle cell development regulation of cell growth regulation of muscle system process regulation of cardiac muscle hypertrophy cardiocyte differentiation circulatory system development cell growth involved in cardiac muscle cell development physiological cardiac muscle hypertrophy negative regulation of cardiac muscle hypertrophy cellular response to stimulus regulation of catalytic activity negative regulation of catalytic activity regulation of signal transduction regulation of transferase activity regulation of MAP kinase activity intracellular signal transduction cell communication negative regulation of kinase activity negative regulation of transferase activity regulation of phosphate metabolic process phosphate-containing compound metabolic process intracellular signaling cassette negative regulation of protein modification process signal transduction phosphorus metabolic process protein modification process protein phosphorylation phosphorylation regulation of MAPK cascade regulation of molecular function regulation of kinase activity negative regulation of protein phosphorylation regulation of protein serine/threonine kinase activity macromolecule modification regulation of phosphorus metabolic process regulation of protein modification process regulation of protein phosphorylation signaling negative regulation of signaling negative regulation of intracellular signal transduction negative regulation of phosphate metabolic process negative regulation of cell communication regulation of intracellular signal transduction negative regulation of protein serine/threonine kinase activity regulation of signaling negative regulation of response to stimulus negative regulation of molecular function negative regulation of MAP kinase activity regulation of protein kinase activity negative regulation of protein kinase activity negative regulation of signal transduction negative regulation of phosphorus metabolic process MAPK cascade regulation of cell communication regulation of phosphorylation negative regulation of phosphorylation negative regulation of MAPK cascade negative regulation of muscle contraction circulatory system process smooth muscle contraction regulation of smooth muscle contraction blood vessel diameter maintenance regulation of biological quality negative regulation of smooth muscle contraction blood circulation regulation of tube diameter relaxation of smooth muscle regulation of tube size muscle contraction relaxation of vascular associated smooth muscle regulation of muscle contraction vascular process in circulatory system vasodilation regulation of anatomical structure size multi-multicellular organism process maternal process involved in female pregnancy female pregnancy multi-organism reproductive process response to alcohol response to chemical response to oxygen-containing compound response to ethanol regulation of neuron projection development positive regulation of cellular component organization cell projection organization positive regulation of biological process neuron projection development neurogenesis neuron differentiation positive regulation of neuron projection development positive regulation of cell projection organization positive regulation of cellular process plasma membrane bounded cell projection organization regulation of cell projection organization nervous system development generation of neurons neuron development regulation of plasma membrane bounded cell projection organization G protein-coupled receptor signaling pathway regulation of G protein-coupled receptor signaling pathway fat cell differentiation brown fat cell differentiation response to amine response to nitrogen compound response to amphetamine adenylate cyclase-inhibiting G protein-coupled receptor signaling pathway regulation of adenylate cyclase-inhibiting adrenergic receptor signaling pathway adenylate cyclase-inhibiting adrenergic receptor signaling pathway adenylate cyclase-modulating G protein-coupled receptor signaling pathway adrenergic receptor signaling pathway negative regulation of G protein-coupled receptor signaling pathway regulation of phospholipase activity negative regulation of hydrolase activity negative regulation of lipase activity negative regulation of phospholipase activity regulation of hydrolase activity regulation of lipase activity heart process regulation of heart contraction positive regulation of blood circulation positive regulation of cardiac muscle contraction cardiac muscle contraction striated muscle contraction positive regulation of striated muscle contraction regulation of cardiac muscle contraction positive regulation of heart contraction regulation of blood circulation regulation of striated muscle contraction positive regulation of muscle contraction positive regulation of multicellular organismal process heart contraction	membrane-bounded organelle intracellular organelle intracellular anatomical structure mitochondrion organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle nucleus membrane-enclosed lumen nucleolus intracellular organelle lumen organelle lumen intracellular non-membrane-bounded organelle membrane-bounded organelle intracellular organelle intracellular anatomical structure mitochondrion organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle nucleus membrane-enclosed lumen nucleolus intracellular organelle lumen organelle lumen intracellular non-membrane-bounded organelle nuclear lumen non-membrane-bounded organelle cytosol cell periphery plasma membrane membrane cytoplasmic side of plasma membrane cytoplasmic side of membrane side of membrane

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, C	IPR001019	Guanine nucleotide binding protein (G-protein), alpha subunit	Family
A, C	IPR000654	G-protein alpha subunit, group Q	Family
A, C	IPR011025	G protein alpha subunit, helical insertion	Homologous Superfamily
A, C	IPR027417	P-loop containing nucleoside triphosphate hydrolase	Homologous Superfamily
B, D	IPR016137	RGS domain	Domain
B, D	IPR034947	Regulator of G-protein signalling 2, regulator of G protein signaling domain	Domain
B, D	IPR036305	RGS domain superfamily	Homologous Superfamily
B, D	IPR044926	RGS, subdomain 2	Homologous Superfamily
B, D	IPR024066	RGS, subdomain 1/3	Homologous Superfamily

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
B, D	Pharos: P41220	acute myeloid leukemia breast carcinoma Liver Cirrhosis, Experimental breast cancer secondary Parkinson disease hypertensive disorder lung carcinoma malignant mesothelioma myopathy adrenal cortex carcinoma ovarian cancer pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia dermatomyositis gastric cancer ulcerative colitis acute myeloid leukemia breast carcinoma Liver Cirrhosis, Experimental breast cancer secondary Parkinson disease hypertensive disorder lung carcinoma malignant mesothelioma myopathy adrenal cortex carcinoma ovarian cancer pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia dermatomyositis gastric cancer ulcerative colitis head and neck cancer large cell medulloblastoma lung adenocarcinoma malignant colon neoplasm non-small cell lung carcinoma pancreatic intraductal papillary-mucinous carcinoma Duchenne muscular dystrophy Sjogren syndrome gastric neoplasm hereditary diffuse gastric adenocarcinoma limb-girdle muscular dystrophy lung cancer malignant ependymoma medulloblastoma oligodendroglioma B-cell chronic lymphocytic leukemia pancreatic intraductal papillary-mucinous neoplasm cystic fibrosis schizophrenia Emery-Dreifuss muscular dystrophy subependymal giant cell astrocytoma glioblastoma

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.