BAIT

CSE4

CSL2, centromeric DNA-binding histone H3-like protein CSE4, L000002719, YKL049C
Centromere protein that resembles histone H3; associated with promoters, accessible chromatin and RNA polymerase II-bound regions; phosphorylated Cse4p associates with centromeres; required for proper kinetochore function; levels regulated by E3 ubiquitin ligase Psh1p; phosphorylation of Cse4p may destabilize defective kinetochores to promote bi-orientation; ubiquitination of N terminus regulates Cse4p proteolysis for faithful chromosome segregation; human CENP-A homolog
Saccharomyces cerevisiae (S288c)
PREY

SAS2

KAT8, L000001802, YMR127C
Histone acetyltransferase (HAT) catalytic subunit of the SAS complex; acetylates free histones and nucleosomes and regulates transcriptional silencing; member of the MYSTacetyltransferase family; other members are Sas4p and Sas5p
GO Process (3)
GO Function (2)
GO Component (3)

Gene Ontology Biological Process

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

A Role for Histone H4K16 Hypoacetylation in Saccharomyces cerevisiae Kinetochore Function.

Choy JS, Acuna R, Au WC, Basrai MA

Hypoacetylated H4 is present at regional centromeres, however, its role in kinetochore function is poorly understood. We characterized H4 acetylation at point centromeres in S. cerevisiae and determined the consequences of altered H4 acetylation on chromosome segregation. We observed low levels of tetra-acetylated and K16 acetylated histone H4 (H4K16Ac) at centromeres. Low levels of H4K16Ac were also observed at non-centromeric ... [more]

Unknown Jun. 06, 2011; 0(0); [Pubmed: 21652526]

Throughput

  • Low Throughput

Ontology Terms

  • phenotype: heat sensitivity (APO:0000147)
  • phenotype: inviable (APO:0000112)

Additional Notes

  • Overexpression of SAS2 in either a cse4-1 or cse4-111 mutant causes synthetic dosage lethality.

Curated By

  • BioGRID