GPA2 guanine nucleotide-binding protein subunit alpha [Saccharomyces cerevisiae S288C] - Gene

Summary

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Official Symbol: GPA2
Official Full Name: guanine nucleotide-binding protein subunit alpha
Primary source: SGD:S000000822
Locus tag: YER020W
See related: AllianceGenome:SGD:S000000822; FungiDB:YER020W; VEuPathDB:YER020W
Gene type: protein coding
RefSeq status: REVIEWED
Organism: Saccharomyces cerevisiae S288C (strain: S288C)
Lineage: Eukaryota; Fungi; Dikarya; Ascomycota; Saccharomycotina; Saccharomycetes; Saccharomycetales; Saccharomycetaceae; Saccharomyces
Also known as: SSP101
Summary: Enables GTPase activity. Involved in several processes, including invasive growth in response to glucose limitation; protein kinase A signaling; and pseudohyphal growth. Located in cytoplasm and plasma membrane. Human ortholog(s) of this gene implicated in Sturge-Weber syndrome; autosomal dominant hypocalcemia 2; congestive heart failure; familial hypocalciuric hypercalcemia 2; and familial multiple nevi flammei. Orthologous to several human genes including GNAI2 (G protein subunit alpha i2) and GNAZ (G protein subunit alpha z). [provided by Alliance of Genome Resources, Dec 2024]
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Genomic context

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See GPA2 in Genome Data Viewer

Location:: chromosome: V

Exon count:: 1

Sequence:: Chromosome: V; NC_001137.3 (195168..196517)

Chromosome V - NC_001137.3 Genomic Context describing neighboring genes

Genomic regions, transcripts, and products

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Go to reference sequence details

Genomic Sequence:: NC_001137.3

Go to nucleotide: Graphics FASTA GenBank

Bibliography

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GeneRIFs: Gene References Into Functions

What's a GeneRIF?

that proteins Gpr1 and Gpa2 are involved in glucose sensing and signal transduction during pexophagy process in yeast
Title: G-protein-coupled receptor Gpr1 and G-protein Gpa2 of cAMP-dependent signaling pathway are involved in glucose-induced pexophagy in the yeast Saccharomyces cerevisiae.
The global transcript and proteomic profiles of wild-type and Gpa2p deficient diploid yeast strains grown on both rich and nitrogen starved maltose media, is compared.
Title: Transcript and proteomic analyses of wild-type and gpa2 mutant Saccharomyces cerevisiae strains suggest a role for glycolytic carbon source sensing in pseudohyphal differentiation.
Ras and Gpa2 have roles in mediating glucose signaling
Title: Ras and Gpa2 mediate one branch of a redundant glucose signaling pathway in yeast.
Gpa2 relieves the inhibition imposed by the kelch-repeat proteins on Protein Kinase A (PKA), thereby bypassing adenylate cyclase for direct regulation of PKA.
Title: Kelch-repeat proteins interacting with the Galpha protein Gpa2 bypass adenylate cyclase for direct regulation of protein kinase A in yeast.

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Pathways from PubChem

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Interactions

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Products	Interactant	Other Gene	Complex	Source	Pubs	Description

General gene information

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Homology

Orthologs from OrthoDB

Gene Ontology Provided by SGD

Function	Evidence Code	Pubs
enables G protein-coupled receptor binding	IBA Inferred from Biological aspect of Ancestor more info
enables G protein-coupled receptor binding	IEA Inferred from Electronic Annotation more info
enables G-protein beta/gamma-subunit complex binding	IBA Inferred from Biological aspect of Ancestor more info
enables G-protein beta/gamma-subunit complex binding	IEA Inferred from Electronic Annotation more info
enables GTP binding	IEA Inferred from Electronic Annotation more info
enables GTPase activity	IBA Inferred from Biological aspect of Ancestor more info
enables GTPase activity	IDA Inferred from Direct Assay more info	PubMed
enables GTPase activity	IEA Inferred from Electronic Annotation more info
enables GTPase activity	IMP Inferred from Mutant Phenotype more info	PubMed
enables metal ion binding	IEA Inferred from Electronic Annotation more info

Process	Evidence Code	Pubs
involved_in G protein-coupled receptor signaling pathway	IEA Inferred from Electronic Annotation more info
involved_in adenylate cyclase-activating G protein-coupled receptor signaling pathway	IBA Inferred from Biological aspect of Ancestor more info
involved_in adenylate cyclase-activating G protein-coupled receptor signaling pathway	IMP Inferred from Mutant Phenotype more info	PubMed
involved_in adenylate cyclase-activating G protein-coupled receptor signaling pathway	IPI Inferred from Physical Interaction more info	PubMed
involved_in ascospore formation	IMP Inferred from Mutant Phenotype more info	PubMed
involved_in glucose mediated signaling pathway	IGI Inferred from Genetic Interaction more info	PubMed
involved_in glucose mediated signaling pathway	IMP Inferred from Mutant Phenotype more info	PubMed
involved_in hexose mediated signaling	IMP Inferred from Mutant Phenotype more info	PubMed
involved_in invasive growth in response to glucose limitation	IMP Inferred from Mutant Phenotype more info	PubMed
involved_in pseudohyphal growth	IMP Inferred from Mutant Phenotype more info	PubMed
involved_in regulation of cell size	HMP more info	PubMed
involved_in signal transduction	IEA Inferred from Electronic Annotation more info
involved_in signal transduction	IMP Inferred from Mutant Phenotype more info	PubMed

Component	Evidence Code	Pubs
is_active_in cytoplasm	IBA Inferred from Biological aspect of Ancestor more info
located_in cytoplasm	IDA Inferred from Direct Assay more info	PubMed
located_in cytosol	HDA more info	PubMed
part_of heterotrimeric G-protein complex	IBA Inferred from Biological aspect of Ancestor more info
part_of heterotrimeric G-protein complex	IEA Inferred from Electronic Annotation more info
located_in mitochondrion	HDA more info	PubMed
located_in plasma membrane	HDA more info	PubMed
located_in plasma membrane	IDA Inferred from Direct Assay more info	PubMed
located_in plasma membrane	IEA Inferred from Electronic Annotation more info

General protein information

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Preferred Names: guanine nucleotide-binding protein subunit alpha

NP_010937.3

Nucleotide binding alpha subunit of the heterotrimeric G protein; interacts with the receptor Gpr1p, has signaling role in response to nutrients; required for the recruitment of Ras-GTP at the plasma membrane and in the nucleus

NCBI Reference Sequences (RefSeq)

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Genome Annotation

The following sections contain reference sequences that belong to a specific genome build. Explain

Reference assembly

Genomic

NC_001137.3 Reference assembly

Range

195168..196517

Download

GenBank, FASTA, Sequence Viewer (Graphics)

mRNA and Protein(s)

NM_001178911.3 → NP_010937.3 TPA: guanine nucleotide-binding protein subunit alpha [Saccharomyces cerevisiae S288C]

See identical proteins and their annotated locations for NP_010937.3

Status: REVIEWED

UniProtKB/Swiss-Prot

D3DLR9, P10823

UniProtKB/TrEMBL

G2WCQ3

Conserved Domains (1) summary

cd00066
Location:124 → 442

G-alpha; Alpha subunit of G proteins (guanine nucleotide binding)