Annotations: 9K6L

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
C [auth G]	SCOP2B Superfamily	Transducin (heterotrimeric G protein), gamma chain	8070798	3001771	SCOP2B (2022-06-29)

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
E [auth R]	PF05296	Taste receptor protein (TAS2R) (TAS2R)	Taste receptor protein (TAS2R)	-	Family

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-2	binding guanyl nucleotide binding GTP binding nucleotide binding guanyl ribonucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding anion binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding binding guanyl nucleotide binding GTP binding nucleotide binding guanyl ribonucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding anion binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule 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	regulation of biological process cell population proliferation regulation of cellular process positive regulation of cell population proliferation biological regulation positive regulation of biological process positive regulation of neural precursor cell proliferation regulation of cell population proliferation cellular process neural precursor cell proliferation positive regulation of cellular process regulation of neural precursor cell proliferation reactive oxygen species metabolic process regulation of superoxide metabolic process regulation of biological process cell population proliferation regulation of cellular process positive regulation of cell population proliferation biological regulation positive regulation of biological process positive regulation of neural precursor cell proliferation regulation of cell population proliferation cellular process neural precursor cell proliferation positive regulation of cellular process regulation of neural precursor cell proliferation reactive oxygen species metabolic process regulation of superoxide metabolic process positive regulation of reactive oxygen species metabolic process superoxide metabolic process positive regulation of metabolic process superoxide anion generation metabolic process positive regulation of superoxide anion generation regulation of superoxide anion generation regulation of metabolic process regulation of reactive oxygen species metabolic process regulation of calcium ion transport regulation of localization transport regulation of transport regulation of monoatomic ion transport establishment of localization metal ion transport calcium ion transport localization monoatomic ion transport regulation of metal ion transport monoatomic cation transport cellular response to stimulus positive regulation of cell communication positive regulation of signal transduction response to stimulus signaling regulation of signal transduction intracellular signal transduction cell communication positive regulation of response to stimulus positive regulation of ERK1 and ERK2 cascade regulation of intracellular signal transduction intracellular signaling cassette signal transduction regulation of signaling positive regulation of MAPK cascade positive regulation of intracellular signal transduction regulation of MAPK cascade regulation of response to stimulus MAPK cascade regulation of cell communication ERK1 and ERK2 cascade regulation of ERK1 and ERK2 cascade positive regulation of signaling negative regulation of signaling negative regulation of biological process negative regulation of G protein-coupled receptor signaling pathway negative regulation of cell communication negative regulation of adenylate cyclase-activating adrenergic receptor signaling pathway adrenergic receptor signaling pathway negative regulation of cellular process regulation of G protein-coupled receptor signaling pathway adenylate cyclase-activating adrenergic receptor signaling pathway negative regulation of response to stimulus adenylate cyclase-activating G protein-coupled receptor signaling pathway negative regulation of signal transduction negative regulation of adenylate cyclase-activating G protein-coupled receptor signaling pathway adenylate cyclase-modulating G protein-coupled receptor signaling pathway G protein-coupled receptor signaling pathway regulation of adenylate cyclase-activating G protein-coupled receptor signaling pathway cell division regulation of body fluid levels multicellular organismal process renal system process system process positive regulation of urine volume regulation of urine volume regulation of biological quality regulation of vascular associated smooth muscle cell proliferation positive regulation of vascular associated smooth muscle cell proliferation regulation of smooth muscle cell proliferation smooth muscle cell proliferation positive regulation of smooth muscle cell proliferation muscle cell proliferation vascular associated smooth muscle cell proliferation cell-cell signaling gamma-aminobutyric acid signaling pathway purinergic nucleotide receptor signaling pathway cell surface receptor signaling pathway G protein-coupled purinergic receptor signaling pathway G protein-coupled adenosine receptor signaling pathway regulation of molecular function regulation of adenylate cyclase activity regulation of catalytic activity negative regulation of molecular function negative regulation of catalytic activity negative regulation of adenylate cyclase activity regulated exocytosis regulation of calcium ion-dependent exocytosis negative regulation of transport negative regulation of regulated secretory pathway vesicle-mediated transport regulation of regulated secretory pathway secretion by cell regulation of secretion by cell negative regulation of secretion negative regulation of exocytosis negative regulation of secretion by cell calcium-ion regulated exocytosis secretion negative regulation of calcium ion-dependent exocytosis export from cell regulation of vesicle-mediated transport regulation of secretion exocytosis regulation of exocytosis regulation of programmed cell death negative regulation of apoptotic signaling pathway negative regulation of programmed cell death regulation of apoptotic process cell death apoptotic signaling pathway negative regulation of apoptotic process apoptotic process programmed cell death regulation of apoptotic signaling pathway positive regulation of locomotion regulation of cell motility positive regulation of cell migration regulation of locomotion positive regulation of cell motility regulation of cell migration cell migration cell motility locomotion adenylate cyclase-inhibiting G protein-coupled receptor signaling pathway trans-synaptic signaling modulation of chemical synaptic transmission negative regulation of synaptic transmission chemical synaptic transmission synaptic signaling regulation of trans-synaptic signaling anterograde trans-synaptic signaling cellular response to nitrogen compound cellular response to acetylcholine response to oxygen-containing compound response to nitrogen compound acetylcholine receptor signaling pathway postsynaptic signal transduction cellular response to oxygen-containing compound cellular response to chemical stimulus G protein-coupled acetylcholine receptor signaling pathway response to chemical response to acetylcholine response to nutrient levels response to nutrient	midbody cellular anatomical structure membrane membrane-bounded organelle intracellular anatomical structure dense core granule intracellular vesicle intracellular membrane-bounded organelle endomembrane system intracellular organelle cytoplasmic vesicle organelle secretory granule secretory vesicle midbody cellular anatomical structure membrane membrane-bounded organelle intracellular anatomical structure dense core granule intracellular vesicle intracellular membrane-bounded organelle endomembrane system intracellular organelle cytoplasmic vesicle organelle secretory granule secretory vesicle cytoplasm vesicle neuronal dense core vesicle 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 extracellular membrane-bounded organelle centrosome microtubule organizing center cytoskeleton membraneless organelle intracellular membraneless organelle microtubule cytoskeleton cytosol somatodendritic compartment cell projection dendrite dendritic tree neuron projection plasma membrane bounded cell projection nucleus membrane-enclosed lumen intracellular organelle lumen nucleoplasm organelle lumen nuclear lumen neuron to neuron synapse synapse cell junction hippocampal mossy fiber to CA3 synapse cell body cilium ciliary basal body
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 ketone response to prostaglandin response to lipid 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 endogenous stimulus cellular response to prostaglandin E stimulus cellular response to chemical stimulus cellular response to alcohol response to hormone response to chemical cellular response to lipid response to prostaglandin E cellular response to ketone cellular response to hormone stimulus 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 cellular response to dopamine response to monoamine response to catecholamine adenylate cyclase-activating dopamine receptor signaling pathway cellular response to catecholamine stimulus G protein-coupled dopamine receptor signaling pathway response to nitrogen compound adenylate cyclase-activating G protein-coupled receptor signaling pathway 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	cellular anatomical structure 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 cellular anatomical structure 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 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 G]	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 nitrogen compound cellular response to stimulus response to dopamine regulation of cellular process response to stimulus signaling cellular response to dopamine response to monoamine cell communication response to catecholamine adenylate cyclase-activating dopamine receptor signaling pathway fibroblast proliferation cell population proliferation cellular process cellular response to nitrogen compound cellular response to stimulus response to dopamine regulation of cellular process response to stimulus signaling cellular response to dopamine response to monoamine cell communication response to catecholamine adenylate cyclase-activating dopamine receptor signaling pathway cellular response to catecholamine stimulus signal transduction regulation of biological process G protein-coupled dopamine receptor signaling pathway 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 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 endogenous stimulus response to alcohol cellular response to prostaglandin stimulus cellular response to endogenous stimulus cellular response to prostaglandin E stimulus cellular response to alcohol response to hormone cellular response to lipid response to prostaglandin E cellular response to ketone cellular response to hormone stimulus	cellular anatomical structure 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 cellular anatomical structure 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 membrane-bounded organelle extracellular vesicle extracellular organelle extracellular region organelle extracellular space vesicle extracellular membrane-bounded organelle synapse cell junction
E [auth R]	exo-alpha-sialidase,Taste receptor type 2 member 16,LgBiT	taste receptor activity molecular transducer activity bitter taste receptor activity transmembrane signaling receptor activity signaling receptor activity G protein-coupled receptor activity	cellular response to stimulus regulation of biological process regulation of cellular process response to stimulus signaling biological regulation G protein-coupled receptor signaling pathway cellular process signal transduction cell communication multicellular organismal process system process nervous system process detection of chemical stimulus involved in sensory perception of bitter taste cellular response to stimulus regulation of biological process regulation of cellular process response to stimulus signaling biological regulation G protein-coupled receptor signaling pathway cellular process signal transduction cell communication multicellular organismal process system process nervous system process detection of chemical stimulus involved in sensory perception of bitter taste detection of chemical stimulus involved in sensory perception of taste detection of stimulus sensory perception of chemical stimulus sensory perception sensory perception of taste response to chemical detection of chemical stimulus sensory perception of bitter taste detection of stimulus involved in sensory perception detection of chemical stimulus involved in sensory perception	cell periphery cellular anatomical structure plasma membrane membrane cell surface external side of plasma membrane side of membrane membrane-bounded organelle intracellular anatomical structure Golgi apparatus subcompartment Golgi apparatus organelle subcompartment intracellular membrane-bounded organelle endomembrane system cell periphery cellular anatomical structure plasma membrane membrane cell surface external side of plasma membrane side of membrane membrane-bounded organelle intracellular anatomical structure Golgi apparatus subcompartment Golgi apparatus organelle subcompartment intracellular membrane-bounded organelle endomembrane system intracellular organelle organelle trans-Golgi network cytoplasm endoplasmic reticulum
D [auth S]	scFv16	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR001019	Guanine nucleotide binding 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	IPR020472	PAC1/LIS1-like, WD-40 repeat	Repeat
B	IPR001632	G-protein beta subunit-like, WD40 repeats	Domain
B	IPR015943	WD40/YVTN repeat-like-containing domain superfamily	Homologous Superfamily
B	IPR016346	G-protein subunit beta 1-5	Family
B	IPR036322	WD40-repeat-containing domain superfamily	Homologous Superfamily
B	IPR001680	WD40 repeat	Repeat
C [auth G]	IPR001770	G-protein, gamma subunit	Family
C [auth G]	IPR015898	G-protein, gamma subunit-like domain	Domain
C [auth G]	IPR036284	G-protein gamma-like domain superfamily	Homologous Superfamily
E [auth R]	IPR007960	Taste receptor type 2	Family

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A	Pharos: P04899	Neoplasm Recurrence, Local sarcomatoid carcinoma carcinoma ventricular tachycardia, familial atrioventricular block breast carcinoma mammary neoplasms, animal undifferentiated carcinoma ACTH-dependent Cushing syndrome malignant ependymoma ovarian granulosa cell tumor breast cancer glioblastoma rheumatoid arthritis ulcerative colitis Neoplasm Recurrence, Local sarcomatoid carcinoma carcinoma ventricular tachycardia, familial atrioventricular block breast carcinoma mammary neoplasms, animal undifferentiated carcinoma ACTH-dependent Cushing syndrome malignant ependymoma ovarian granulosa cell tumor breast cancer glioblastoma rheumatoid arthritis ulcerative colitis attention deficit hyperactivity disorder, inattentive type Cushing disease due to pituitary adenoma
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 G]	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
E [auth R]	Pharos: Q9NYV7	alcohol abuse Alcoholic Intoxication, Chronic common cold alcohol dependence atrioventricular block cardiac arrest large cell medulloblastoma

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

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

Membrane Protein Annotation: MemProtMD MemProtMD Database Homepage

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

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.