BAIT
SPT16
CDC68, SSF1, chromatin-remodeling protein SPT16, L000002038, YGL207W
Subunit of the heterodimeric FACT complex (Spt16p-Pob3p); FACT associates with chromatin via interaction with Nhp6Ap and Nhp6Bp, and reorganizes nucleosomes to facilitate access to DNA by RNA and DNA polymerases; SPT16 specifically required for diauxic shift-induced H2B deposition onto rDNA genes; some mutations cause reduced nucleosome occupancy over highly transcribed regions of the yeast genome
GO Process (7)
GO Function (3)
GO Component (5)
Gene Ontology Biological Process
- DNA replication-independent nucleosome organization [IDA]
- DNA-dependent DNA replication [IPI]
- chromatin organization involved in regulation of transcription [IMP]
- nucleosome assembly [IDA]
- positive regulation of RNA polymerase II transcriptional preinitiation complex assembly [IDA]
- positive regulation of transcription initiation from RNA polymerase II promoter [IGI, IMP]
- transcription elongation from RNA polymerase II promoter [IPI]
Gene Ontology Molecular Function
Gene Ontology Cellular Component
Saccharomyces cerevisiae (S288c)
PREY
HIR1
L000000776, YBL008W
Subunit of the HIR complex; HIR is a nucleosome assembly complex involved in regulation of histone gene transcription; contributes to nucleosome formation, heterochromatic gene silencing, and formation of functional kinetochores
GO Process (3)
GO Function (3)
GO Component (3)
Gene Ontology Biological Process
Gene Ontology Molecular Function
Gene Ontology Cellular Component
Saccharomyces cerevisiae (S288c)
Synthetic Lethality
A genetic interaction is inferred when mutations or deletions in separate genes, each of which alone causes a minimal phenotype, result in lethality when combined in the same cell under a given condition.
Publication
Defects in SPT16 or POB3 (yFACT) in Saccharomyces cerevisiae cause dependence on the Hir/Hpc pathway: polymerase passage may degrade chromatin structure.
Spt16/Cdc68, Pob3, and Nhp6 collaborate in vitro and in vivo as the yeast factor SPN, which is homologous to human FACT. SPN/FACT complexes mediate passage of polymerases through nucleosomes and are important for both transcription and replication. An spt16 mutation was found to be intolerable when combined with a mutation in any member of the set of functionally related genes ... [more]
Genetics Dec. 01, 2002; 162(4);1557-71 [Pubmed: 12524332]
Throughput
- Low Throughput
Ontology Terms
- phenotype: inviable (APO:0000112)
Curated By
- BioGRID