Annotations: 7XK2

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	8056779	3002022	SCOP2B (2022-06-29)
E [auth C]	SCOP2B Superfamily	Transducin (heterotrimeric G protein) gamma chain	8070798	3001771	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)
B	F_UNCLASSIFIED	e7xk2B1	A: beta duplicates or obligate multimers	X: beta-propeller-like	H: beta-propeller	T: 7-bladed	F: F_UNCLASSIFIED	ECOD (1.6)
C [auth R]	F_UNCLASSIFIED	e7xk2R1	A: alpha bundles	X: Family A G protein-coupled receptor-like (From Topology)	H: Family A G protein-coupled receptor-like (From Topology)	T: Family A G protein-coupled receptor-like	F: F_UNCLASSIFIED	ECOD (1.6)
D [auth S]	F_UNCLASSIFIED	e7xk2S2	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: F_UNCLASSIFIED	ECOD (1.6)
E [auth C]	F_UNCLASSIFIED	e7xk2C1	A: extended segments	X: Transducin (heterotrimeric G protein), gamma chain (From Topology)	H: Transducin (heterotrimeric G protein), gamma chain (From Topology)	T: Transducin (heterotrimeric G protein), gamma chain	F: F_UNCLASSIFIED	ECOD (1.6)

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	PF00400	WD domain, G-beta repeat (WD40)	WD domain, G-beta repeat	-	Repeat
C [auth R]	PF00001	7 transmembrane receptor (rhodopsin family) (7tm_1)	7 transmembrane receptor (rhodopsin family)	-	Family
E [auth C]	PF00631	GGL domain (G-gamma)	GGL domain	G-protein gamma like domains (GGL) are found in the gamma subunit of the heterotrimeric G protein complex and in regulators of G protein signaling (RGS) proteins [1]. It is also found fused to an inactive Galpha in the Dictyostelium protein gbqA [2] ...	G-protein gamma like domains (GGL) are found in the gamma subunit of the heterotrimeric G protein complex and in regulators of G protein signaling (RGS) proteins [1]. It is also found fused to an inactive Galpha in the Dictyostelium protein gbqA [2]. G-gamma likely shares a common origin with the helical N-terminal unit of G-beta [2]. All organisms that posses a G-beta possess a G-gamma [2].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Guanine nucleotide-binding protein G(i) subunit alpha-1	D2 dopamine receptor binding protein binding binding signaling receptor binding G protein-coupled receptor binding dopamine receptor binding guanyl nucleotide binding GTP binding nucleotide binding guanyl ribonucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding D2 dopamine receptor binding protein binding binding signaling receptor binding G protein-coupled receptor binding dopamine receptor 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 cation binding magnesium ion binding metal ion binding GDP binding G protein-coupled serotonin receptor binding protein-containing complex binding G-protein beta/gamma-subunit complex 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	response to organic substance response to stimulus response to hormone response to chemical response to endogenous stimulus response to organonitrogen compound response to peptide hormone response to oxygen-containing compound response to nitrogen compound cellular process cell division cellular response to stimulus regulation of biological process regulation of cellular process response to organic substance response to stimulus response to hormone response to chemical response to endogenous stimulus response to organonitrogen compound response to peptide hormone response to oxygen-containing compound response to nitrogen compound cellular process cell division cellular response to stimulus regulation of biological process regulation of cellular process signaling biological regulation cell communication adenylate cyclase-modulating G protein-coupled receptor signaling pathway G protein-coupled receptor signaling pathway signal transduction cell cycle regulation of cytoskeleton organization regulation of cellular component organization microtubule cytoskeleton organization regulation of mitotic spindle organization mitotic cell cycle cellular component organization cellular component organization or biogenesis regulation of cell cycle microtubule cytoskeleton organization involved in mitosis spindle organization cell cycle process regulation of cell cycle process regulation of microtubule-based process regulation of spindle organization regulation of organelle organization mitotic spindle organization organelle organization mitotic cell cycle process microtubule-based process cytoskeleton organization regulation of microtubule cytoskeleton organization protein localization positive regulation of protein localization to cell periphery regulation of localization protein localization to cell periphery cellular localization regulation of protein localization positive regulation of biological process positive regulation of protein localization to cell cortex regulation of protein localization to cell periphery localization regulation of cellular localization regulation of protein localization to cell cortex cellular macromolecule localization macromolecule localization positive regulation of protein localization protein localization to cell cortex positive regulation of cellular process adenylate cyclase-inhibiting G protein-coupled receptor signaling pathway regulation of signaling regulation of signal transduction intracellular signal transduction cAMP-mediated signaling regulation of intracellular signal transduction regulation of response to stimulus intracellular signaling cassette regulation of cell communication regulation of cAMP-mediated signaling response to ketone response to lipid response to alcohol cellular response to forskolin cellular response to organic cyclic compound cellular response to oxygen-containing compound cellular response to chemical stimulus cellular response to alcohol response to forskolin cellular response to lipid cellular response to organic substance cellular response to ketone response to organic cyclic compound	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 cell periphery cell cortex cytoplasm protein-containing complex extrinsic component of plasma membrane catalytic complex plasma membrane protein complex cytoplasmic side of membrane membrane plasma membrane membrane protein complex heterotrimeric G-protein complex side of membrane 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 nucleoplasm vacuolar membrane lytic vacuole vacuole lytic vacuole membrane bounding membrane of organelle lysosomal membrane organelle membrane lysosome
B	Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1	protein binding binding enzyme binding GTPase binding protein-containing complex 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 signaling receptor complex adaptor activity protein-macromolecule adaptor activity protein binding binding enzyme binding GTPase binding protein-containing complex 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 signaling receptor complex adaptor activity protein-macromolecule adaptor activity molecular adaptor activity signaling adaptor activity	multicellular organismal process system process sensory perception of chemical stimulus sensory perception nervous system process sensory perception of taste developmental process sensory organ development eye development animal organ development retina development in camera-type eye visual system development multicellular organism development camera-type eye development multicellular organismal process system process sensory perception of chemical stimulus sensory perception nervous system process sensory perception of taste developmental process sensory organ development eye development animal organ development retina development in camera-type eye visual system development multicellular organism development camera-type eye development anatomical structure development sensory system development system development cell population proliferation cellular process cellular response to stimulus regulation of biological process regulation of cellular process response to stimulus signaling biological regulation signal transduction cell communication response to organic substance response to ketone response to prostaglandin response to lipid cellular response to endogenous stimulus response to hormone response to prostaglandin E cellular response to organic substance cellular response to ketone cellular response to hormone stimulus response to endogenous stimulus response to alcohol cellular response to prostaglandin stimulus response to oxygen-containing compound cellular response to oxygen-containing compound cellular response to prostaglandin E stimulus cellular response to chemical stimulus cellular response to alcohol response to chemical cellular response to lipid small GTPase-mediated signal transduction Ras protein signal transduction intracellular signal transduction intracellular signaling cassette phospholipase C-activating G protein-coupled receptor signaling pathway G protein-coupled receptor signaling pathway cellular response to nitrogen compound response to dopamine dopamine receptor signaling pathway cellular response to dopamine response to monoamine response to catecholamine adenylate cyclase-activating dopamine receptor signaling pathway cellular response to catecholamine stimulus response to organic cyclic compound response to organonitrogen compound cellular response to organic cyclic compound response to nitrogen compound adenylate cyclase-activating G protein-coupled receptor signaling pathway cellular response to organonitrogen compound cellular response to monoamine stimulus adenylate cyclase-modulating G protein-coupled receptor signaling pathway synaptic signaling cellular response to acetylcholine cell-cell signaling acetylcholine receptor signaling pathway postsynaptic signal transduction G protein-coupled acetylcholine receptor signaling pathway response to acetylcholine	membrane cellular anatomical entity 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 membrane cellular anatomical entity 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 membrane-bounded organelle extracellular vesicle extracellular organelle extracellular region organelle extracellular space vesicle extracellular membrane-bounded organelle non-motile cilium 9+0 non-motile cilium cilium neuron projection photoreceptor disc membrane photoreceptor outer segment plasma membrane bounded cell projection cell projection photoreceptor cell cilium organelle membrane intracellular anatomical structure cytoplasm cytosol vacuolar membrane lytic vacuole vacuole intracellular membrane-bounded organelle intracellular organelle lytic vacuole membrane bounding membrane of organelle lysosomal membrane lysosome synapse cell junction
C [auth R]	Hydroxycarboxylic acid receptor 2	molecular transducer activity G protein-coupled receptor activity transmembrane signaling receptor activity signaling receptor activity nicotinic acid receptor activity	myeloid cell apoptotic process multicellular organismal process homeostatic process leukocyte apoptotic process cell death neutrophil homeostasis neutrophil apoptotic process multicellular organismal-level homeostasis leukocyte homeostasis immune system process inflammatory cell apoptotic process cellular process homeostasis of number of cells apoptotic process myeloid cell apoptotic process multicellular organismal process homeostatic process leukocyte apoptotic process cell death neutrophil homeostasis neutrophil apoptotic process multicellular organismal-level homeostasis leukocyte homeostasis immune system process inflammatory cell apoptotic process cellular process homeostasis of number of cells apoptotic process myeloid cell homeostasis programmed cell death cellular response to stimulus regulation of biological process regulation of cellular process response to stimulus signaling biological regulation G protein-coupled receptor signaling pathway signal transduction cell communication protein localization positive regulation of cell communication regulation of localization establishment of protein localization system process nitrogen compound transport regulation of adiponectin secretion positive regulation of establishment of protein localization positive regulation of adiponectin secretion localization adiponectin secretion cellular macromolecule localization regulation of biological quality regulation of hormone levels organic substance transport establishment of protein localization to extracellular region protein secretion establishment of localization regulation of protein secretion regulation of secretion endocrine hormone secretion positive regulation of protein localization positive regulation of multicellular organismal process cellular localization regulation of hormone secretion regulation of protein localization transport positive regulation of biological process positive regulation of secretion by cell hormone secretion protein localization to extracellular region positive regulation of protein transport secretion by cell regulation of secretion by cell positive regulation of hormone secretion positive regulation of secretion signal release regulation of multicellular organismal process positive regulation of cellular process regulation of signaling secretion regulation of transport regulation of establishment of protein localization export from cell cell-cell signaling regulation of protein transport positive regulation of protein secretion endocrine process positive regulation of transport protein transport regulation of cellular localization macromolecule localization hormone transport regulation of cell communication positive regulation of signaling regulation of programmed cell death regulation of neutrophil apoptotic process positive regulation of myeloid cell apoptotic process positive regulation of neutrophil apoptotic process regulation of immune system process positive regulation of leukocyte apoptotic process positive regulation of immune system process regulation of leukocyte apoptotic process positive regulation of programmed cell death regulation of apoptotic process positive regulation of apoptotic process regulation of myeloid cell apoptotic process negative regulation of catabolic process lipid catabolic process catabolic process regulation of lipid metabolic process negative regulation of metabolic process negative regulation of biological process primary metabolic process regulation of catabolic process regulation of lipid catabolic process regulation of primary metabolic process organic substance metabolic process metabolic process organic substance catabolic process regulation of metabolic process negative regulation of lipid metabolic process negative regulation of lipid catabolic process lipid metabolic process	cell junction cellular anatomical entity cell periphery plasma membrane membrane
D [auth S]	scFv16	-	-	-
E [auth C]	Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2	protein binding binding G-protein beta-subunit binding	fibroblast proliferation cell population proliferation cellular process cellular response to stimulus cellular response to nitrogen compound response to dopamine response to organic substance regulation of cellular process response to stimulus dopamine receptor signaling pathway signaling cellular response to dopamine response to monoamine cell communication fibroblast proliferation cell population proliferation cellular process cellular response to stimulus cellular response to nitrogen compound response to dopamine response to organic substance regulation of cellular process response to stimulus dopamine receptor signaling pathway signaling cellular response to dopamine response to monoamine cell communication cellular response to endogenous stimulus response to catecholamine adenylate cyclase-activating dopamine receptor signaling pathway cellular response to catecholamine stimulus cellular response to organic substance signal transduction response to organic cyclic compound regulation of biological process response to organonitrogen compound response to endogenous stimulus cellular response to organic cyclic compound biological regulation response to oxygen-containing compound response to nitrogen compound adenylate cyclase-activating G protein-coupled receptor signaling pathway cellular response to oxygen-containing compound cellular response to chemical stimulus cellular response to organonitrogen compound cellular response to monoamine stimulus response to chemical adenylate cyclase-modulating G protein-coupled receptor signaling pathway G protein-coupled receptor signaling pathway response to ketone response to prostaglandin response to lipid response to hormone response to prostaglandin E cellular response to ketone cellular response to hormone stimulus response to alcohol cellular response to prostaglandin stimulus cellular response to prostaglandin E stimulus cellular response to alcohol cellular response to lipid	membrane cellular anatomical entity 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 membrane cellular anatomical entity 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 membrane-bounded organelle extracellular vesicle extracellular organelle extracellular region organelle extracellular space vesicle extracellular membrane-bounded organelle

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	IPR019775	WD40 repeat, conserved site	Conserved Site
B	IPR015943	WD40/YVTN repeat-like-containing domain superfamily	Homologous Superfamily
B	IPR016346	Guanine nucleotide-binding protein, beta subunit	Family
B	IPR036322	WD40-repeat-containing domain superfamily	Homologous Superfamily
B	IPR001632	G-protein, beta subunit	Domain
B	IPR001680	WD40 repeat	Repeat
B	IPR020472	G-protein beta WD-40 repeat	Repeat
C [auth R]	IPR000276	G protein-coupled receptor, rhodopsin-like	Family
C [auth R]	IPR017452	GPCR, rhodopsin-like, 7TM	Domain
E [auth C]	IPR015898	G-protein gamma-like domain	Domain
E [auth C]	IPR001770	G-protein, gamma subunit	Family
E [auth C]	IPR036284	G-protein gamma-like domain superfamily	Homologous Superfamily

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A	Pharos: P63096	substance withdrawal syndrome dissociative amnesia malignant glioma nicotine dependence pancreatic ductal adenocarcinoma acute myeloid leukemia Withdrawal Symptoms breast cancer glioblastoma intellectual disability large cell medulloblastoma malignant pancreatic neoplasm oligodendroglioma Pick disease astrocytic tumor substance withdrawal syndrome dissociative amnesia malignant glioma nicotine dependence pancreatic ductal adenocarcinoma acute myeloid leukemia Withdrawal Symptoms breast cancer glioblastoma intellectual disability large cell medulloblastoma malignant pancreatic neoplasm oligodendroglioma Pick disease astrocytic tumor breast carcinoma interstitial cystitis malignant colon neoplasm medulloblastoma ovarian cancer subependymal giant cell astrocytoma amnestic disorder atypical teratoid rhabdoid tumor breast fibroadenoma ductal breast carcinoma in situ invasive ductal breast carcinoma
B	Pharos: P62873	intellectual disability, autosomal dominant 42 melancholia intellectual disability endogenous depression medulloblastoma myopathy ovarian cancer Precursor Cell Lymphoblastic Leukemia Lymphoma Sjogren syndrome anxiety disorder chronic kidney disease juvenile dermatomyositis lung adenocarcinoma neurotic disorder pancreatic ductal adenocarcinoma intellectual disability, autosomal dominant 42 melancholia intellectual disability endogenous depression medulloblastoma myopathy ovarian cancer Precursor Cell Lymphoblastic Leukemia Lymphoma Sjogren syndrome anxiety disorder chronic kidney disease juvenile dermatomyositis lung adenocarcinoma neurotic disorder pancreatic ductal adenocarcinoma subependymal giant cell astrocytoma breast cancer Duchenne muscular dystrophy leukemia, acute lymphocytic, susceptibility to, 1 malignant pancreatic neoplasm myelodysplastic syndrome osteosarcoma plasma cell myeloma rheumatoid arthritis swine influenza childhood acute lymphoblastic leukemia depressive disorder
C [auth R]	Pharos: Q8TDS4	psoriasis squamous cell carcinoma skin neoplasm schizophrenia Flushing skin cancer acute myeloid leukemia metabolic syndrome X pustulosis palmaris et plantaris bipolar disorder familial hyperlipidemia hypertriglyceridemia lung carcinoma
E [auth C]	Pharos: P59768	pancreatic intraductal papillary-mucinous neoplasm pilocytic astrocytoma sarcoidosis ulcerative colitis adrenal cortex carcinoma breast carcinoma Duchenne muscular dystrophy glioblastoma large cell medulloblastoma medulloblastoma ovarian cancer pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia pituitary cancer Sjogren syndrome X-linked mixed deafness with perilymphatic gusher pancreatic intraductal papillary-mucinous neoplasm pilocytic astrocytoma sarcoidosis ulcerative colitis adrenal cortex carcinoma breast carcinoma Duchenne muscular dystrophy glioblastoma large cell medulloblastoma medulloblastoma ovarian cancer pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia pituitary cancer Sjogren syndrome X-linked mixed deafness with perilymphatic gusher astrocytic tumor Crohn disease ductal breast carcinoma in situ interstitial cystitis lung carcinoma non-small cell lung carcinoma pancreatic intraductal papillary-mucinous carcinoma Pick disease primitive neuroectodermal tumor thoracic aortic aneurysm atypical teratoid rhabdoid tumor cystic fibrosis Emery-Dreifuss muscular dystrophy invasive ductal breast carcinoma malignant ependymoma osteosarcoma

Membrane Protein Annotation: OPM OPM Database Homepage

Chains	External Link	Type	Class	Superfamily	Family
A, C [auth R], E [auth C]	OPM	Transmembrane	Alpha-helical polytopic	Rhodopsin-like receptors and pumps	G-protein coupled receptors, family A

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

Chains	External Link	Comment
A, C [auth R], E [auth C]	PDBTM	Annotated as membrane protein by PDBTM

Membrane Protein Annotation: mpstruc mpstruc Database Homepage

Chains	Resource Link	Group	Subgroup	Protein
A, C [auth R], E [auth C]	mpstruc	TRANSMEMBRANE PROTEINS: ALPHA-HELICAL	G Protein-Coupled Receptors: Class A	HCA2 hydroxycarboxylic acid receptor 2 (GPR109A, niacin receptor) - G_i complex with bound MK6892

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.