KSP1 putative serine/threonine protein kinase KSP1 [Saccharomyces cerevisiae S288C] - Gene

Summary

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Official Symbol: KSP1
Official Full Name: putative serine/threonine protein kinase KSP1
Primary source: SGD:S000001124
Locus tag: YHR082C
See related: AllianceGenome:SGD:S000001124; FungiDB:YHR082C; VEuPathDB:YHR082C
Gene type: protein coding
RefSeq status: REVIEWED
Organism: Saccharomyces cerevisiae S288C (strain: S288C)
Lineage: Eukaryota; Fungi; Dikarya; Ascomycota; Saccharomycotina; Saccharomycetes; Saccharomycetales; Saccharomycetaceae; Saccharomyces
Summary: Enables mRNA binding activity and protein kinase activity. Involved in several processes, including TOR signaling; negative regulation of macroautophagy; and regulation of pseudohyphal growth. Located in cytoplasmic stress granule and nucleus. [provided by Alliance of Genome Resources, Jan 2025]
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Genomic context

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See KSP1 in Genome Data Viewer

Location:: chromosome: VIII

Exon count:: 1

Sequence:: Chromosome: VIII; NC_001140.6 (268459..271548, complement)

Chromosome VIII - NC_001140.6 Genomic Context describing neighboring genes

Genomic regions, transcripts, and products

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Go to reference sequence details

Genomic Sequence:: NC_001140.6

Go to nucleotide: Graphics FASTA GenBank

Bibliography

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GeneRIFs: Gene References Into Functions

What's a GeneRIF?

the Ksp1p kinase signaling network integrates polarized pseudohyphal morphogenesis and translational regulation through the stress-responsive transcriptional control of pathways for amino acid metabolism and post-translational modification of translation factors affecting stress granule abundance.
Title: A Stress-Responsive Signaling Network Regulating Pseudohyphal Growth and Ribonucleoprotein Granule Abundance in Saccharomyces cerevisiae.
Results indicate that putative serine/threonine protein kinase KSP1 (Ksp1) directly phosphorylates eukaryotic translation initiation factor 4G (eIF4G).
Title: Ksp1-dependent phosphorylation of eIF4G modulates post-transcriptional regulation of specific mRNAs under glucose deprivation conditions.
the KSP1 deficiency also leads to a shortened replicative lifespan, which could be restored by the increased expression of CTT1. On the other hand, KSP1-overexpressed (KSP1OX) yeast cells exhibited increased resistance towards MMS, an effect that was, at least in part, CTT1 independent.
Title: CTT1 overexpression increases the replicative lifespan of MMS-sensitive Saccharomyces cerevisiae deficient in KSP1.
identifies Ksp1 as a new component that functions as part of the PKA and TORC1 signaling network to control the magnitude of autophagy.
Title: Ksp1 kinase regulates autophagy via the target of rapamycin complex 1 (TORC1) pathway.

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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 3-phosphoinositide-dependent protein kinase activity	IEA Inferred from Electronic Annotation more info
enables AMP-activated protein kinase activity	IEA Inferred from Electronic Annotation more info
enables ATP binding	IEA Inferred from Electronic Annotation more info
enables DNA-dependent protein kinase activity	IEA Inferred from Electronic Annotation more info
enables Rho-dependent protein serine/threonine kinase activity	IEA Inferred from Electronic Annotation more info
enables eukaryotic translation initiation factor 2alpha kinase activity	IEA Inferred from Electronic Annotation more info
enables histone H2AS1 kinase activity	IEA Inferred from Electronic Annotation more info
enables histone H2AS121 kinase activity	IEA Inferred from Electronic Annotation more info
enables histone H2AT120 kinase activity	IEA Inferred from Electronic Annotation more info
enables histone H2AXS139 kinase activity	IEA Inferred from Electronic Annotation more info
enables histone H2BS14 kinase activity	IEA Inferred from Electronic Annotation more info
enables histone H2BS36 kinase activity	IEA Inferred from Electronic Annotation more info
enables histone H3S10 kinase activity	IEA Inferred from Electronic Annotation more info
enables histone H3S28 kinase activity	IEA Inferred from Electronic Annotation more info
enables histone H3S57 kinase activity	IEA Inferred from Electronic Annotation more info
enables histone H3T11 kinase activity	IEA Inferred from Electronic Annotation more info
enables histone H3T3 kinase activity	IEA Inferred from Electronic Annotation more info
enables histone H3T45 kinase activity	IEA Inferred from Electronic Annotation more info
enables histone H3T6 kinase activity	IEA Inferred from Electronic Annotation more info
enables histone H4S1 kinase activity	IEA Inferred from Electronic Annotation more info
enables mRNA binding	HDA more info	PubMed
enables protein kinase activity	HDA more info	PubMed
enables protein serine kinase activity	IEA Inferred from Electronic Annotation more info
enables protein serine/threonine kinase activity	IBA Inferred from Biological aspect of Ancestor more info
enables protein serine/threonine kinase activity	IEA Inferred from Electronic Annotation more info
enables ribosomal protein S6 kinase activity	IEA Inferred from Electronic Annotation more info

Process	Evidence Code	Pubs
involved_in G2/M transition of mitotic cell cycle	IBA Inferred from Biological aspect of Ancestor more info
involved_in TOR signaling	IMP Inferred from Mutant Phenotype more info	PubMed
involved_in TOR signaling	IPI Inferred from Physical Interaction more info	PubMed
involved_in chromatin remodeling	IEA Inferred from Electronic Annotation more info
involved_in mitotic cell cycle checkpoint signaling	IBA Inferred from Biological aspect of Ancestor more info
involved_in negative regulation of macroautophagy	IGI Inferred from Genetic Interaction more info	PubMed
involved_in negative regulation of macroautophagy	IMP Inferred from Mutant Phenotype more info	PubMed
involved_in protein localization	IMP Inferred from Mutant Phenotype more info	PubMed
involved_in regulation of autophagy	IEA Inferred from Electronic Annotation more info
involved_in regulation of filamentous growth	IMP Inferred from Mutant Phenotype more info	PubMed
involved_in regulation of pseudohyphal growth	IMP Inferred from Mutant Phenotype more info	PubMed
involved_in regulation of translation in response to stress	IMP Inferred from Mutant Phenotype more info	PubMed

Component	Evidence Code	Pubs
located_in cytoplasm	HDA more info	PubMed
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 cytoplasmic stress granule	HDA more info	PubMed
located_in cytoplasmic stress granule	IDA Inferred from Direct Assay more info	PubMed
is_active_in nucleus	IBA Inferred from Biological aspect of Ancestor more info
located_in nucleus	IDA Inferred from Direct Assay more info	PubMed
located_in nucleus	IEA Inferred from Electronic Annotation more info

General protein information

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Preferred Names: putative serine/threonine protein kinase KSP1

NP_011950.1

EC 2.7.11.1

Serine/threonine protein kinase; associates with TORC1 and likely involved in TOR signaling cascades; negative regulator of autophagy; nuclear translocation required for haploid filamentous growth; regulates filamentous growth induced nuclear translocation of Bcy1p, Fus3p, and Sks1p; overproduction causes allele-specific suppression of prp20-10; protein abundance increases in response to DNA replication stress

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_001140.6 Reference assembly

Range

268459..271548 complement

Download

GenBank, FASTA, Sequence Viewer (Graphics)

mRNA and Protein(s)

NM_001179212.1 → NP_011950.1 TPA: putative serine/threonine protein kinase KSP1 [Saccharomyces cerevisiae S288C]

See identical proteins and their annotated locations for NP_011950.1

Status: REVIEWED

UniProtKB/Swiss-Prot

D3DL33, P38691

UniProtKB/TrEMBL

A6ZSZ1, C7GWU5, C8Z9M6, G2WFF6, N1P258

Conserved Domains (1) summary

cd13993
Location:17 → 348

STKc_Pat1_like; Catalytic domain of Fungal Pat1-like Serine/Threonine kinases