BAIT
SAR1
Arf family GTPase SAR1, L000001801, YPL218W
GTPase, GTP-binding protein of the ARF family; component of COPII coat of vesicles; required for transport vesicle formation during ER to Golgi protein transport; lowers membrane rigidity helping in vesicle formation
GO Process (2)
GO Function (1)
GO Component (2)
Gene Ontology Biological Process
Gene Ontology Molecular Function
Gene Ontology Cellular Component
Saccharomyces cerevisiae (S288c)
PREY
HRR25
KTI14, serine/threonine protein kinase HRR25, L000000810, YPL204W
Protein kinase; involved in regulating diverse events including vesicular trafficking, DNA repair, and chromosome segregation; binds the CTD of RNA pol II; phosphorylates the COPII coat; phosphorylates Tif6p which plays a critical role in 60S ribosomal subunit biogenesis; interacts with Sit4p phosphatase; homolog of mammalian casein kinase 1delta (CK1delta)
GO Process (8)
GO Function (2)
GO Component (9)
Gene Ontology Biological Process
- DNA repair [IMP]
- ER to Golgi vesicle-mediated transport [IMP]
- attachment of spindle microtubules to kinetochore involved in homologous chromosome segregation [IMP]
- mitotic nuclear division [IMP]
- protein phosphorylation [IDA, IMP]
- ribosomal large subunit biogenesis [IMP]
- ribosomal small subunit biogenesis [IMP]
- tRNA wobble uridine modification [IMP]
Gene Ontology Molecular Function
Gene Ontology Cellular Component
Saccharomyces cerevisiae (S288c)
Dosage Lethality
A genetic interaction is inferred when over expression or increased dosage of one gene causes lethality in a strain that is mutated or deleted for another gene.
Publication
The inactive form of a yeast casein kinase I suppresses the secretory defect of the sec12 mutant. Implication of negative regulation by the Hrr25 kinase in the vesicle budding from the endoplasmic reticulum.
Sec12p is the guanine nucleotide exchange factor of Sar1 GTPase and functions at the very upstream in the vesicle budding reactions from the endoplasmic reticulum (ER). We previously identified three yeast loci, RST1, RST2, and RST3, whose mutations suppressed the temperature-sensitive growth of the sec12-4 mutant (Nakano, A. (1996) J. Biochem. (Tokyo) 120, 642-646). In the present study, we cloned ... [more]
J. Biol. Chem. Feb. 05, 1999; 274(6);3804-10 [Pubmed: 9920934]
Throughput
- Low Throughput
Ontology Terms
- phenotype: inviable (APO:0000112)
Curated By
- BioGRID