REG1 protein phosphatase regulator REG1 [Saccharomyces cerevisiae S288C] - Gene

Summary

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Official Symbol: REG1
Official Full Name: protein phosphatase regulator REG1
Primary source: SGD:S000002435
Locus tag: YDR028C
See related: AllianceGenome:SGD:S000002435; FungiDB:YDR028C; VEuPathDB:YDR028C
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: HEX2; PZF240; SPP43; SRN1
Summary: Predicted to enable protein phosphatase regulator activity. Involved in cellular response to glucose starvation; protein catabolic process in the vacuole; and response to unfolded protein. Located in cytoplasm. [provided by Alliance of Genome Resources, Dec 2024]
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Genomic context

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See REG1 in Genome Data Viewer

Location:: chromosome: IV

Exon count:: 1

Sequence:: Chromosome: IV; NC_001136.10 (497835..500879, complement)

Chromosome IV - NC_001136.10 Genomic Context describing neighboring genes

Genomic regions, transcripts, and products

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Go to reference sequence details

Genomic Sequence:: NC_001136.10

Go to nucleotide: Graphics FASTA GenBank

Bibliography

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GeneRIFs: Gene References Into Functions

What's a GeneRIF?

The multiple effects of REG1 deletion and SNF1 overexpression improved the production of S-adenosyl-L-methionine in Saccharomyces cerevisiae.
Title: The multiple effects of REG1 deletion and SNF1 overexpression improved the production of S-adenosyl-L-methionine in Saccharomyces cerevisiae.
Reg1 and Snf1 regulate stress-induced relocalization of protein phosphatase-1 to cytoplasmic granules.
Title: Reg1 and Snf1 regulate stress-induced relocalization of protein phosphatase-1 to cytoplasmic granules.
Here we show that the defect in glucose-repression in the absence of Ssb is due to the ability of the chaperone to bridge between the SNF1 and Glc7 complexes. Ssb performs this post-translational function in concert with the 14-3-3 protein Bmh, to which Ssb binds via its very C-terminus. Raising the intracellular concentration of Ssb or Bmh enabled Glc7 to dephosphorylate SNF1 even in the absence of Reg1
Title: The Hsp70 homolog Ssb and the 14-3-3 protein Bmh1 jointly regulate transcription of glucose repressed genes in Saccharomyces cerevisiae.
Data show that the Reg1-Glc7 protein phosphatase 1 and Sit4 type 2A-like phosphatase are largely responsible for dephosphorylation of Thr-210 of Snf1(1-309).
Title: Heterotrimer-independent regulation of activation-loop phosphorylation of Snf1 protein kinase involves two protein phosphatases.
the ability of Reg1 to promote the dephosphorylation of Snf1 is not directly related to the strength of its association with the Snf1 complex
Title: Reg1 protein regulates phosphorylation of all three Snf1 isoforms but preferentially associates with the Gal83 isoform.
Roles of two protein phosphatases, Reg1-Glc7 and Sit4, and glycogen synthesis in regulation of SNF1 protein kinase.
Title: Roles of two protein phosphatases, Reg1-Glc7 and Sit4, and glycogen synthesis in regulation of SNF1 protein kinase.
data suggest that the regulation of Snf1 dephosphorylation is imparted through a dynamic competition between the Glc7 phosphatase and the Snf1 kinase for binding to the PP1 regulatory subunit Reg1.
Title: PP1 phosphatase-binding motif in Reg1 protein of Saccharomyces cerevisiae is required for interaction with both the PP1 phosphatase Glc7 and the Snf1 protein kinase.
Yck1,2 kinases act with Glc7-Reg1 phosphatase in a novel glucose-signaling pathway that modulates kinase activity in response to carbon source availability.
Title: Glc7-Reg1 phosphatase signals to Yck1,2 casein kinase 1 to regulate transport activity and glucose-induced inactivation of Saccharomyces maltose permease.
data suggest that Reg1 and Snf1 proteins function in an H3 phosphorylation-independent pathway that also involves a noncatalytic role played by Gcn5 protein
Title: Histone H3 Ser10 phosphorylation-independent function of Snf1 and Reg1 proteins rescues a gcn5- mutant in HIS3 expression.

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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 protein phosphatase regulator activity	TAS Traceable Author Statement more info	PubMed

Process	Evidence Code	Pubs
involved_in cellular response to glucose starvation	IBA Inferred from Biological aspect of Ancestor more info
involved_in cellular response to glucose starvation	IMP Inferred from Mutant Phenotype more info	PubMed
involved_in protein catabolic process in the vacuole	IBA Inferred from Biological aspect of Ancestor more info
involved_in protein catabolic process in the vacuole	IDA Inferred from Direct Assay more info	PubMed
involved_in protein catabolic process in the vacuole	IMP Inferred from Mutant Phenotype more info	PubMed
involved_in response to unfolded protein	IMP Inferred from Mutant Phenotype more info	PubMed

Component	Evidence Code	Pubs
located_in cytoplasm	IDA Inferred from Direct Assay more info	PubMed
located_in nucleus	IEA Inferred from Electronic Annotation more info
part_of protein phosphatase type 1 complex	TAS Traceable Author Statement more info	PubMed
located_in vacuole	IEA Inferred from Electronic Annotation more info

General protein information

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Preferred Names: protein phosphatase regulator REG1

NP_010311.1

Regulatory subunit of type 1 protein phosphatase Glc7p; involved in negative regulation of glucose-repressible genes; involved in regulation of the nucleocytoplasmic shuttling of Hxk2p; REG1 has a paralog, REG2, that arose from the whole genome duplication

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_001136.10 Reference assembly

Range

497835..500879 complement

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GenBank, FASTA, Sequence Viewer (Graphics)

mRNA and Protein(s)

NM_001180336.1 → NP_010311.1 TPA: protein phosphatase regulator REG1 [Saccharomyces cerevisiae S288C]

See identical proteins and their annotated locations for NP_010311.1

Status: REVIEWED

UniProtKB/Swiss-Prot

D6VS13, Q00816

UniProtKB/TrEMBL

B3LGN7, C7GLW9, C8Z4U8, N1P6D9

Conserved Domains (1) summary

pfam08550
Location:173 → 204

DUF1752; Fungal protein of unknown function (DUF1752)