Annotations: 7Y27

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
E [auth F]	SCOP2B Superfamily	Transducin (heterotrimeric G protein) gamma chain	8070798	3001771	SCOP2B (2021-05-27)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	PF00400	e7y27A1	A: beta duplicates or obligate multimers	X: beta-propeller-like	H: beta-propeller	T: 7-bladed	F: PF00400	ECOD (1.6)
C [auth D]	PF07686	e7y27D1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: PF07686	ECOD (1.6)
D [auth E]	PF00001	e7y27E1	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: PF00001	ECOD (1.6)
E [auth F]	PF00631	e7y27F1	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: PF00631	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF00400	WD domain, G-beta repeat (WD40)	WD domain, G-beta repeat	-	Repeat
D [auth E]	PF00001	7 transmembrane receptor (rhodopsin family) (7tm_1)	7 transmembrane receptor (rhodopsin family)	-	Family
F [auth C]	PF03002	Somatostatin/Cortistatin family (Somatostatin)	Somatostatin/Cortistatin family	-	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)/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 response to organic cyclic compound response to organonitrogen compound G protein-coupled dopamine receptor signaling pathway 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
B	Engineered Guanine nucleotide-binding protein G(q) subunit alpha	-	-	-
C [auth D]	single Fab chain (svFv16)	-	-	-
D [auth E]	Somatostatin receptor type 2	peptide receptor activity molecular transducer activity G protein-coupled receptor activity G protein-coupled peptide receptor activity transmembrane signaling receptor activity signaling receptor activity somatostatin receptor activity neuropeptide receptor activity binding neuropeptide binding peptide binding protein binding PDZ domain binding protein domain specific binding	multicellular organismal process system process smooth muscle contraction phasic smooth muscle contraction muscle contraction peristalsis muscle system process cellular response to stimulus regulation of biological process regulation of cellular process response to stimulus signaling biological regulation cell communication multicellular organismal process system process smooth muscle contraction phasic smooth muscle contraction muscle contraction peristalsis muscle system process cellular response to stimulus regulation of biological process regulation of cellular process response to stimulus signaling biological regulation cell communication G protein-coupled receptor signaling pathway cellular process signal transduction neuropeptide signaling pathway developmental process head development forebrain development animal organ development brain development nervous system development multicellular organism development central nervous system development anatomical structure development system development spermatogenesis sexual reproduction reproductive process multicellular organismal reproductive process developmental process involved in reproduction male gamete generation gamete generation negative regulation of cell population proliferation cell population proliferation regulation of cell population proliferation negative regulation of cellular process negative regulation of biological process adenylate cyclase-inhibiting G protein-coupled receptor signaling pathway adenylate cyclase-modulating G protein-coupled receptor signaling pathway response to lipid cellular response to organic cyclic compound response to oxygen-containing compound cellular response to oxygen-containing compound cellular response to chemical stimulus response to chemical cellular response to lipid response to estradiol cellular response to estradiol stimulus response to organic cyclic compound cerebellum development metencephalon development hindbrain development response to endogenous stimulus response to glucocorticoid cellular response to glucocorticoid stimulus cellular response to corticosteroid stimulus cellular response to endogenous stimulus response to corticosteroid response to hormone response to steroid hormone cellular response to steroid hormone stimulus cellular response to hormone stimulus response to nutrient levels response to stress response to starvation G protein-coupled receptor signaling pathway, coupled to cyclic nucleotide second messenger	intracellular anatomical structure cytoplasm cellular anatomical entity cytosol cell periphery plasma membrane membrane cell projection neuron projection plasma membrane bounded cell projection
E [auth F]	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 cellular response to endogenous stimulus response to catecholamine 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 cellular response to endogenous stimulus response to catecholamine adenylate cyclase-activating dopamine receptor signaling pathway cellular response to catecholamine stimulus signal transduction response to organic cyclic compound regulation of biological process response to organonitrogen compound response to endogenous stimulus G protein-coupled dopamine receptor signaling pathway 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 alcohol cellular response to prostaglandin 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	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
F [auth C]	somatostatin-14	hormone activity protein binding binding molecular function activator activity signaling receptor binding molecular function regulator activity signaling receptor regulator activity receptor ligand activity signaling receptor activator activity	response to acid chemical response to stimulus response to chemical response to amino acid response to xenobiotic stimulus cellular response to stimulus regulation of biological process regulation of cellular process cell surface receptor signaling pathway signaling biological regulation cellular process signal transduction cell communication response to acid chemical response to stimulus response to chemical response to amino acid response to xenobiotic stimulus cellular response to stimulus regulation of biological process regulation of cellular process cell surface receptor signaling pathway signaling biological regulation cellular process signal transduction cell communication regulation of postsynaptic membrane neurotransmitter receptor levels regulation of biological quality negative regulation of cell population proliferation cell population proliferation regulation of cell population proliferation negative regulation of cellular process negative regulation of biological process response to lipid response to hormone response to steroid hormone response to endogenous stimulus response to organic cyclic compound trans-synaptic signaling synaptic signaling anterograde trans-synaptic signaling cell-cell signaling chemical synaptic transmission somatostatin signaling pathway hormone-mediated signaling pathway cellular response to endogenous stimulus cellular response to chemical stimulus somatostatin receptor signaling pathway G protein-coupled receptor signaling pathway cellular response to hormone stimulus cell death apoptotic signaling pathway hormone-mediated apoptotic signaling pathway apoptotic process programmed cell death response to nutrient levels response to nutrient response to pH response to abiotic stimulus response to acidic pH regulation of cell motility regulation of locomotion regulation of cell migration cell migration cell motility locomotion multicellular organismal process digestion response to osmotic stress hyperosmotic response response to stress	membrane-bounded organelle intracellular anatomical structure dense core granule intracellular vesicle cellular anatomical entity intracellular membrane-bounded organelle endomembrane system intracellular organelle cytoplasmic vesicle organelle secretory granule secretory vesicle cytoplasm vesicle membrane-bounded organelle intracellular anatomical structure dense core granule intracellular vesicle cellular anatomical entity intracellular membrane-bounded organelle endomembrane system intracellular organelle cytoplasmic vesicle organelle secretory granule secretory vesicle cytoplasm vesicle neuronal dense core vesicle extracellular region somatodendritic compartment cell body neuronal cell body extracellular space GABA-ergic synapse synapse cell junction

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR019775	WD40 repeat, conserved site	Conserved Site
A	IPR015943	WD40/YVTN repeat-like-containing domain superfamily	Homologous Superfamily
A	IPR016346	Guanine nucleotide-binding protein, beta subunit	Family
A	IPR036322	WD40-repeat-containing domain superfamily	Homologous Superfamily
A	IPR001632	G-protein, beta subunit	Domain
A	IPR001680	WD40 repeat	Repeat
A	IPR020472	G-protein beta WD-40 repeat	Repeat
D [auth E]	IPR002074	Somatostatin receptor 2	Family
D [auth E]	IPR000276	G protein-coupled receptor, rhodopsin-like	Family
D [auth E]	IPR000586	Somatostatin receptor family	Family
D [auth E]	IPR017452	GPCR, rhodopsin-like, 7TM	Domain
E [auth F]	IPR015898	G-protein gamma-like domain	Domain
E [auth F]	IPR001770	G-protein, gamma subunit	Family
E [auth F]	IPR036284	G-protein gamma-like domain superfamily	Homologous Superfamily
F [auth C]	IPR018142	Somatostatin/Cortistatin, C-terminal	Domain
F [auth C]	IPR004250	Somatostatin	Family

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A	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
E [auth F]	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
D [auth E], E [auth F], F [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
D [auth E], E [auth F], F [auth C]	PDBTM	Annotated as membrane protein by PDBTM

Membrane Protein Annotation: mpstruc mpstruc Database Homepage

Chains	Resource Link	Group	Subgroup	Protein
D [auth E], E [auth F], F [auth C]	mpstruc	TRANSMEMBRANE PROTEINS: ALPHA-HELICAL	G Protein-Coupled Receptors: Class A	somatostatin receptor 2 (SSTR2) - miniG_o complex with bound octreotide

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 R01GM133198.