Annotations: 9SH6

Structure of a GPCR dimer bound to two G proteins

External Resource: Annotation

Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
G [auth E], I [auth D]	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
F [auth C], H [auth F]	PF00400	WD domain, G-beta repeat (WD40)	WD domain, G-beta repeat	-	Repeat
C [auth K], D [auth I]	PF04648	Yeast mating factor alpha hormone (MF_alpha)	Yeast mating factor alpha hormone	-	Family
A [auth B], B [auth A]	PF02116	Fungal pheromone mating factor STE2 GPCR (STE2)	Fungal pheromone mating factor STE2 GPCR	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
G [auth E], I [auth D]	Guanine nucleotide-binding protein alpha-1 subunit	protein binding binding G-protein beta-subunit binding protein-containing complex binding G-protein beta/gamma-subunit complex binding signaling receptor binding G protein-coupled receptor binding guanyl nucleotide binding GTP binding nucleotide binding guanyl ribonucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding protein binding binding G-protein beta-subunit binding protein-containing complex binding G-protein beta/gamma-subunit complex binding signaling receptor binding G protein-coupled receptor 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 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	carbohydrate metabolic process regulation of biological process regulation of cellular process biological regulation primary metabolic process metabolic process cellular process regulation of carbohydrate metabolic process regulation of metabolic process regulation of primary metabolic process cellular response to stimulus response to stimulus signaling G protein-coupled receptor signaling pathway carbohydrate metabolic process regulation of biological process regulation of cellular process biological regulation primary metabolic process metabolic process cellular process regulation of carbohydrate metabolic process regulation of metabolic process regulation of primary metabolic process cellular response to stimulus response to stimulus signaling G protein-coupled receptor signaling pathway signal transduction cell communication establishment of organelle localization cellular localization sexual reproduction organelle transport along microtubule transport nuclear migration involved in conjugation with cellular fusion reproductive process nucleus localization intracellular transport establishment of localization conjugation with cellular fusion localization organelle localization establishment of localization in cell nuclear migration along microtubule microtubule-based transport transport along microtubule cytoskeleton-dependent intracellular transport microtubule-based movement microtubule-based process nuclear migration organelle fusion cellular component organization organelle organization nucleus organization karyogamy karyogamy involved in conjugation with cellular fusion cellular component organization or biogenesis	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 cell periphery cellular anatomical structure cytoplasmic side of plasma membrane GTPase complex 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 cell periphery cellular anatomical structure cytoplasmic side of plasma membrane GTPase complex extrinsic component of membrane extrinsic component of cytoplasmic side of plasma membrane membrane-bounded organelle intracellular anatomical structure endosome intracellular vesicle intracellular membrane-bounded organelle endomembrane system intracellular organelle cytoplasmic vesicle organelle cytoplasm vesicle cytosol endosome membrane cytoplasmic vesicle membrane bounding membrane of organelle vesicle membrane organelle membrane
F [auth C], H [auth F]	Guanine nucleotide-binding protein subunit beta	protein binding binding G-protein gamma-subunit binding small GTPase binding enzyme binding GTPase binding scaffold protein binding kinase binding protein kinase binding G-protein alpha-subunit binding signaling receptor complex adaptor activity protein-macromolecule adaptor activity molecular adaptor activity signaling adaptor activity	invasive growth in response to glucose limitation growth invasive filamentous growth growth of unicellular organism as a thread of attached cells filamentous growth filamentous growth of a population of unicellular organisms localization protein localization to cell tip protein localization to mating projection tip macromolecule localization intracellular protein localization response to stimulus chemotropism response to chemical invasive growth in response to glucose limitation growth invasive filamentous growth growth of unicellular organism as a thread of attached cells filamentous growth filamentous growth of a population of unicellular organisms localization protein localization to cell tip protein localization to mating projection tip macromolecule localization intracellular protein localization response to stimulus chemotropism response to chemical tropism response to external stimulus establishment of protein localization cellular localization establishment of protein localization to membrane establishment of protein localization to plasma membrane cellular process localization within membrane establishment of localization cellular response to stimulus sexual reproduction reproductive process response to pheromone conjugation with cellular fusion cellular response to pheromone response to pheromone triggering conjugation with cellular fusion cellular response to chemical stimulus regulation of biological process regulation of cellular process signaling biological regulation G protein-coupled receptor signaling pathway signal transduction cell communication	cell projection mating projection cellular anatomical structure plasma membrane bounded cell projection cell periphery cell cortex intracellular anatomical structure cytoplasm protein-containing complex extrinsic component of plasma membrane catalytic complex plasma membrane protein complex cytoplasmic side of membrane membrane cell projection mating projection cellular anatomical structure plasma membrane bounded cell projection cell periphery cell cortex intracellular anatomical structure 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 G-protein beta/gamma-subunit complex Cdc24p-Far1p-Gbetagamma complex
E [auth G], J [auth H]	Guanine nucleotide-binding protein subunit gamma	protein binding binding G-protein beta-subunit binding	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	cell periphery cell cortex cellular anatomical structure intracellular anatomical structure 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 cell periphery cell cortex cellular anatomical structure intracellular anatomical structure 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 Cdc24p-Far1p-Gbetagamma complex G-protein beta/gamma-subunit complex
C [auth K], D [auth I]	Mating factor alpha	cation binding cupric ion binding transition metal ion binding copper ion binding ion binding binding metal ion binding small molecule binding pheromone activity molecular function activator activity mating pheromone activity molecular function regulator activity signaling receptor regulator activity receptor ligand activity cation binding cupric ion binding transition metal ion binding copper ion binding ion binding binding metal ion binding small molecule binding pheromone activity molecular function activator activity mating pheromone activity molecular function regulator activity signaling receptor regulator activity receptor ligand activity signaling receptor activator activity	sexual reproduction reproductive process mating multi-organism reproductive process	membrane-bounded organelle storage vacuole intracellular anatomical structure lytic vacuole vacuole intracellular membrane-bounded organelle fungal-type vacuole intracellular organelle cellular anatomical structure organelle cytoplasm extracellular region
A [auth B], B [auth A]	Pheromone alpha factor receptor	peptide pheromone receptor activity peptide receptor activity molecular transducer activity mating-type factor pheromone receptor activity G protein-coupled receptor activity transmembrane signaling receptor activity signaling receptor activity G protein-coupled peptide receptor activity mating-type alpha-factor pheromone receptor activity pheromone receptor activity	sexual reproduction reproductive process reproductive process in single-celled organism cell-cell fusion cellular process cytogamy conjugation with cellular fusion	cell periphery cellular anatomical structure plasma membrane membrane G protein-coupled receptor homodimeric complex protein-containing complex plasma membrane protein complex membrane protein complex G protein-coupled receptor dimeric complex plasma membrane signaling receptor complex G protein-coupled receptor complex signaling receptor complex

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
G [auth E], I [auth D]	IPR001019	Guanine nucleotide binding protein, alpha subunit	Family
G [auth E], I [auth D]	IPR002975	Fungal G-protein, alpha subunit	Family
G [auth E], I [auth D]	IPR011025	G protein alpha subunit, helical insertion	Homologous Superfamily
G [auth E], I [auth D]	IPR027417	P-loop containing nucleoside triphosphate hydrolase	Homologous Superfamily
F [auth C], H [auth F]	IPR019775	WD40 repeat, conserved site	Conserved Site
F [auth C], H [auth F]	IPR020472	PAC1/LIS1-like, WD-40 repeat	Repeat
F [auth C], H [auth F]	IPR001632	G-protein beta subunit-like, WD40 repeats	Domain
F [auth C], H [auth F]	IPR015943	WD40/YVTN repeat-like-containing domain superfamily	Homologous Superfamily
F [auth C], H [auth F]	IPR016346	G-protein subunit beta 1-5	Family
F [auth C], H [auth F]	IPR036322	WD40-repeat-containing domain superfamily	Homologous Superfamily
F [auth C], H [auth F]	IPR001680	WD40 repeat	Repeat
E [auth G], J [auth H]	IPR015898	G-protein, gamma subunit-like domain	Domain
E [auth G], J [auth H]	IPR036284	G-protein gamma-like domain superfamily	Homologous Superfamily
E [auth G], J [auth H]	IPR041848	Guanine nucleotide-binding protein subunit gamma, fungal	Family
C [auth K], D [auth I]	IPR016326	Mating factor alpha	Family
C [auth K], D [auth I]	IPR006742	Mating factor alpha, C-terminal repeat	Repeat
C [auth K], D [auth I]	IPR008675	Mating factor alpha precursor, N-terminal	Domain
A [auth B], B [auth A]	IPR027458	Pheromone alpha factor receptor, double transmembrane domain superfamily	Homologous Superfamily
A [auth B], B [auth A]	IPR000366	GPCR fungal pheromone mating factor, STE2	Family

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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.

9SH6 | pdb_00009sh6

Structure of a GPCR dimer bound to two G proteins

External Resource: Annotation

Protein Family Annotation Pfam Database Homepage

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

InterPro: Protein Family Classification InterPro Database Homepage