Annotations: 8DWC

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
C [auth D]	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)
B [auth C]	PF00400	e8dwcC1	A: beta duplicates or obligate multimers	X: beta-propeller-like	H: beta-propeller	T: 7-bladed	F: PF00400	ECOD (1.6)
C [auth D]	PF00631	e8dwcD1	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)
D [auth R]	PF00001	e8dwcR1	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	PF07686	e8dwcE1	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)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
B [auth C]	PF00400	WD domain, G-beta repeat (WD40)	WD domain, G-beta repeat	-	Repeat
D [auth R]	PF00001	7 transmembrane receptor (rhodopsin family) (7tm_1)	7 transmembrane receptor (rhodopsin family)	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Proenkephalin-A	opioid peptide 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 G protein-coupled receptor binding opioid receptor binding	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 startle response multicellular organismal process 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 startle response multicellular organismal process system process nervous system process neuromuscular process response to external stimulus behavior locomotory behavior transmission of nerve impulse aggressive behavior trans-synaptic signaling synaptic signaling anterograde trans-synaptic signaling cell-cell signaling chemical synaptic transmission G protein-coupled opioid receptor signaling pathway behavioral defense response fear response behavioral fear response defense response response to stress multicellular organismal response to stress sensory perception sensory perception of pain biological process involved in interspecies interaction between organisms response to other organism response to biotic stimulus defense response to bacterium defense response to other organism response to bacterium response to external biotic stimulus	extracellular region cellular anatomical entity membrane-bounded organelle vesicle lumen intracellular anatomical structure chromaffin granule lumen intracellular vesicle membrane-enclosed lumen cytoplasmic vesicle lumen intracellular membrane-bounded organelle secretory granule lumen endomembrane system chromaffin granule intracellular organelle lumen extracellular region cellular anatomical entity membrane-bounded organelle vesicle lumen intracellular anatomical structure chromaffin granule lumen intracellular vesicle membrane-enclosed lumen cytoplasmic vesicle lumen intracellular membrane-bounded organelle secretory granule lumen endomembrane system chromaffin granule intracellular organelle lumen intracellular organelle cytoplasmic vesicle organelle lumen organelle secretory granule secretory vesicle cytoplasm vesicle somatodendritic compartment cell body neuronal cell body cell periphery plasma membrane membrane cell projection dendrite dendritic tree neuron projection plasma membrane bounded cell projection axon synapse axon terminus presynapse distal axon cell junction neuron projection terminus
B [auth C]	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
C [auth D]	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
D [auth R]	Mas-related G-protein coupled receptor member X1	molecular transducer activity G protein-coupled receptor activity transmembrane signaling receptor activity signaling receptor activity	response to stimulus response to chemical response to organonitrogen compound response to chloroquine response to nitrogen compound response to organic cyclic compound cellular response to stimulus regulation of biological process regulation of cellular process signaling biological regulation G protein-coupled receptor signaling pathway cellular process signal transduction response to stimulus response to chemical response to organonitrogen compound response to chloroquine response to nitrogen compound response to organic cyclic compound cellular response to stimulus regulation of biological process regulation of cellular process signaling biological regulation G protein-coupled receptor signaling pathway cellular process signal transduction cell communication cell surface receptor signaling pathway acute-phase response defense response response to stress inflammatory response acute inflammatory response	cell surface cellular anatomical entity cell periphery plasma membrane membrane
E	scFv16	-	-	-
F [auth B]	Gs-mini-Gq chimera	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR006024	Opioid neuropeptide precursor	Family
A	IPR000703	Proenkephalin A	Family
B [auth C]	IPR019775	WD40 repeat, conserved site	Conserved Site
B [auth C]	IPR015943	WD40/YVTN repeat-like-containing domain superfamily	Homologous Superfamily
B [auth C]	IPR016346	Guanine nucleotide-binding protein, beta subunit	Family
B [auth C]	IPR036322	WD40-repeat-containing domain superfamily	Homologous Superfamily
B [auth C]	IPR001632	G-protein, beta subunit	Domain
B [auth C]	IPR001680	WD40 repeat	Repeat
B [auth C]	IPR020472	G-protein beta WD-40 repeat	Repeat
C [auth D]	IPR015898	G-protein gamma-like domain	Domain
C [auth D]	IPR001770	G-protein, gamma subunit	Family
C [auth D]	IPR036284	G-protein gamma-like domain superfamily	Homologous Superfamily
D [auth R]	IPR000276	G protein-coupled receptor, rhodopsin-like	Family
D [auth R]	IPR017452	GPCR, rhodopsin-like, 7TM	Domain
D [auth R]	IPR026234	Mas-related G protein-coupled receptor family	Family

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
B [auth C]	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 D]	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
D [auth R]	Pharos: Q96LB2	diabetes mellitus psoriasis

Membrane Protein Annotation: OPM OPM Database Homepage

Chains	External Link	Type	Class	Superfamily	Family
A, C [auth D], D [auth R]	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 D], D [auth R]	PDBTM	Annotated as membrane protein by PDBTM

Membrane Protein Annotation: mpstruc mpstruc Database Homepage

Chains	Resource Link	Group	Subgroup	Protein
A, C [auth D], D [auth R]	mpstruc	TRANSMEMBRANE PROTEINS: ALPHA-HELICAL	G Protein-Coupled Receptors: Class A	mas-related GPCR (MRGPRX) receptor, G_q-coupled MRGPRX1 with bound BAM 8-14

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.