2V4Z

The crystal structure of the human G-protein subunit alpha (GNAI3) in complex with an engineered regulator of G-protein signaling type 2 domain (RGS2)

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Pharos: Disease Associations

Domain Annotation: SCOP/SCOPe Classification SCOP Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
B	d2v4zb_	All alpha proteins	Regulator of G-protein signaling, RGS	Regulator of G-protein signaling, RGS	Regulator of G-protein signaling, RGS	automated matches	HUMAN (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Galpha insert domain-like	8056795	3000669	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	Ras-like P-loop GTPases	8056794	3002022	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	Ras-like P-loop GTPases	8056794	3002022	SCOP2B (2022-06-29)
B	SCOP2 Family	Regulator of G-protein signaling RGS	8062640	4001125	SCOP2 (2022-06-29)
B	SCOP2 Superfamily	Regulator of G-protein signaling RGS	8062641	3000835	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	G-alpha	e2v4zA1	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	e2v4zA2	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	e2v4zB1	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)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.40.50.300	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	P-loop containing nucleotide triphosphate hydrolases	CATH (4.3.0)
A	1.10.400.10	Mainly Alpha	Orthogonal Bundle	GI Alpha 1, domain 2-like	GI Alpha 1, domain 2-like	CATH (4.3.0)
B	1.10.196.10	Mainly Alpha	Orthogonal Bundle	Regulator of G-protein Signalling 4	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)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF00503	G-protein alpha subunit (G-alpha)	G-protein alpha subunit	G proteins couple receptors of extracellular signals to intracellular signaling pathways. The G protein alpha subunit binds guanyl nucleotide and is a weak GTPase. A set of residues that are unique to G-alpha as compared to its ancestor the Arf-like ...	G proteins couple receptors of extracellular signals to intracellular signaling pathways. The G protein alpha subunit binds guanyl nucleotide and is a weak GTPase. A set of residues that are unique to G-alpha as compared to its ancestor the Arf-like family form a ring of residues centered on the nucleotide binding site [3]. A Ggamma is found fused to an inactive Galpha in the Dictyostelium protein gbqA [3].	Domain
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

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	GUANINE NUCLEOTIDE-BINDING PROTEIN G(K) SUBUNIT ALPHA	binding guanyl nucleotide binding GTP binding nucleotide binding guanyl ribonucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding organic cyclic compound binding purine nucleotide binding anion binding heterocyclic compound binding carbohydrate derivative binding binding guanyl nucleotide binding GTP binding nucleotide binding guanyl ribonucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding organic cyclic compound binding purine nucleotide binding anion binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding GDP binding protein-containing complex binding G-protein beta/gamma-subunit complex binding protein binding signaling receptor binding G protein-coupled receptor binding cation binding metal ion 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	cellular process cell division cellular response to stimulus regulation of biological process regulation of cellular process response to stimulus signaling biological regulation cell communication adenylate cyclase-modulating G protein-coupled receptor signaling pathway G protein-coupled receptor signaling pathway signal transduction regulation of catalytic activity negative regulation of molecular function cellular process cell division cellular response to stimulus regulation of biological process regulation of cellular process response to stimulus signaling biological regulation cell communication adenylate cyclase-modulating G protein-coupled receptor signaling pathway G protein-coupled receptor signaling pathway signal transduction regulation of catalytic activity negative regulation of molecular function negative regulation of catalytic activity negative regulation of adenylate cyclase activity regulation of molecular function regulation of lyase activity negative regulation of lyase activity regulation of adenylate cyclase activity negative regulation of cyclase activity regulation of cyclase activity cell cycle catabolic process macroautophagy autophagy positive regulation of biological process positive regulation of cellular metabolic process regulation of autophagy cellular catabolic process positive regulation of metabolic process positive regulation of macroautophagy process utilizing autophagic mechanism positive regulation of cellular process positive regulation of autophagy cellular metabolic process regulation of cellular metabolic process regulation of catabolic process positive regulation of catabolic process regulation of macroautophagy regulation of cellular catabolic process positive regulation of cellular catabolic process metabolic process regulation of metabolic process adenylate cyclase-inhibiting G protein-coupled receptor signaling pathway ribose phosphate metabolic process GTP metabolic process carbohydrate derivative metabolic process nucleobase-containing compound metabolic process purine nucleotide metabolic process organic substance metabolic process ribonucleotide metabolic process nucleobase-containing small molecule metabolic process purine ribonucleoside triphosphate metabolic process phosphate-containing compound metabolic process small molecule metabolic process phosphorus metabolic process ribonucleoside triphosphate metabolic process nucleoside phosphate metabolic process purine nucleoside triphosphate metabolic process organonitrogen compound metabolic process primary metabolic process nucleotide metabolic process purine-containing compound metabolic process organic cyclic compound metabolic process organophosphate metabolic process nucleoside triphosphate metabolic process purine ribonucleotide metabolic process cellular response to nitrogen compound response to dopamine response to organic substance dopamine receptor signaling pathway cellular response to dopamine response to monoamine cellular response to endogenous stimulus response to catecholamine cellular response to catecholamine stimulus cellular response to organic substance response to organic cyclic compound response to organonitrogen compound response to endogenous stimulus 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 organonitrogen compound cellular response to monoamine stimulus response to chemical	midbody cellular anatomical entity membrane-bounded organelle intracellular anatomical structure nucleus membrane-enclosed lumen intracellular membrane-bounded organelle nucleolus intracellular organelle lumen intracellular organelle organelle lumen organelle intracellular non-membrane-bounded organelle nuclear lumen midbody cellular anatomical entity membrane-bounded organelle intracellular anatomical structure nucleus membrane-enclosed lumen intracellular membrane-bounded organelle nucleolus intracellular organelle lumen intracellular organelle organelle lumen organelle intracellular non-membrane-bounded organelle nuclear lumen non-membrane-bounded organelle membrane 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 extracellular exosome extracellular vesicle extracellular organelle extracellular region extracellular space vesicle extracellular membrane-bounded organelle centrosome microtubule organizing center cytoskeleton microtubule cytoskeleton cytoplasm nucleoplasm vacuolar membrane lytic vacuole vacuole lytic vacuole membrane bounding membrane of organelle lysosomal membrane organelle membrane lysosome Golgi apparatus endomembrane system
B	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 organic substance 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 organonitrogen compound biosynthetic process negative regulation of cellular metabolic process regulation of primary metabolic process post-transcriptional regulation of gene expression negative regulation of translation organic substance metabolic process organic substance biosynthetic process protein metabolic process negative regulation of protein metabolic process negative regulation of macromolecule metabolic process regulation of biosynthetic process organonitrogen compound metabolic 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 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 organic substance 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 cell cycle 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 organonitrogen compound 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	IPR001019	Guanine nucleotide binding protein (G-protein), alpha subunit	Family
A	IPR011025	G protein alpha subunit, helical insertion	Homologous Superfamily
A	IPR027417	P-loop containing nucleoside triphosphate hydrolase	Homologous Superfamily
A	IPR001408	G-protein alpha subunit, group I	Family
B	IPR016137	RGS domain	Domain
B	IPR034947	Regulator of G-protein signalling 2, regulator of G protein signaling domain	Domain
B	IPR036305	RGS domain superfamily	Homologous Superfamily
B	IPR044926	RGS, subdomain 2	Homologous Superfamily
B	IPR024066	RGS, subdomain 1/3	Homologous Superfamily

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A	Pharos: P08754	auriculocondylar syndrome dissociative amnesia auriculocondylar syndrome 1 large cell medulloblastoma malignant glioma oligodendroglioma pilocytic astrocytoma Albinism, Ocular psoriasis breast carcinoma intellectual disability lymphoplasmacytic lymphoma medulloblastoma osteosarcoma plasma cell myeloma auriculocondylar syndrome dissociative amnesia auriculocondylar syndrome 1 large cell medulloblastoma malignant glioma oligodendroglioma pilocytic astrocytoma Albinism, Ocular psoriasis breast carcinoma intellectual disability lymphoplasmacytic lymphoma medulloblastoma osteosarcoma plasma cell myeloma astrocytic tumor dermatomyositis Duchenne muscular dystrophy juvenile dermatomyositis malignant ependymoma myopathy ovarian cancer primitive neuroectodermal tumor amnestic disorder atypical teratoid rhabdoid tumor breast cancer diabetes mellitus glioblastoma
B	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 ulcerative colitis gastric cancer 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 ulcerative colitis gastric cancer head and neck cancer large cell medulloblastoma lung adenocarcinoma malignant colon neoplasm non-small cell lung carcinoma pancreatic intraductal papillary-mucinous carcinoma Sjogren syndrome Duchenne muscular dystrophy 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 schizophrenia cystic fibrosis subependymal giant cell astrocytoma Emery-Dreifuss muscular dystrophy glioblastoma

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.