BAIT

SPT21

L000002040, YMR179W
Protein with a role in transcriptional silencing; required for normal transcription at several loci including HTA2-HTB2 and HHF2-HHT2, but not required at the other histone loci; functionally related to Spt10p; localizes to nuclear foci that become diffuse upon DNA replication stress
Saccharomyces cerevisiae (S288c)
PREY

HHF1

histone H4, L000000770, YBR009C
Histone H4; core histone protein required for chromatin assembly and chromosome function; one of two identical histone proteins (see also HHF2); contributes to telomeric silencing; N-terminal domain involved in maintaining genomic integrity
GO Process (4)
GO Function (1)
GO Component (2)

Gene Ontology Biological Process

Gene Ontology Molecular Function

Gene Ontology Cellular Component

Saccharomyces cerevisiae (S288c)

Phenotypic Suppression

A genetic interaction is inferred when mutation or over expression of one gene results in suppression of any phenotype (other than lethality/growth defect) associated with mutation or over expression of another gene.

Publication

Spt10 and Spt21 are required for transcriptional silencing in Saccharomyces cerevisiae.

Chang JS, Winston F

In Saccharomyces cerevisiae, transcriptional silencing occurs at three classes of genomic regions: near the telomeres, at the silent mating type loci, and within the rDNA repeats. In all three cases, silencing depends upon several factors, including specific types of histone modifications. In this work we have investigated the roles in silencing for Spt10 and Spt21, two proteins previously shown to ... [more]

Unknown Nov. 05, 2010; 0(0); [Pubmed: 21057056]

Throughput

  • Low Throughput

Ontology Terms

  • phenotype: mating efficiency (APO:0000034)
  • phenotype: silencing (APO:0000046)

Additional Notes

  • genetic complex
  • overexpression of the histone genes can strongly suppress defects in silencing caused by deletion of spt21

Related interactions

InteractionExperimental Evidence CodeDatasetThroughputScoreCurated ByNotes
SPT21 HHF1
Affinity Capture-MS
Affinity Capture-MS

An interaction is inferred when a bait protein is affinity captured from cell extracts by either polyclonal antibody or epitope tag and the associated interaction partner is identified by mass spectrometric methods.

High-BioGRID
1027967
SPT21 HHF1
Negative Genetic
Negative Genetic

Mutations/deletions in separate genes, each of which alone causes a minimal phenotype, but when combined in the same cell results in a more severe fitness defect or lethality under a given condition. This term is reserved for high or low throughput studies with scores.

High-2.5156BioGRID
224877
HHF1 SPT21
Negative Genetic
Negative Genetic

Mutations/deletions in separate genes, each of which alone causes a minimal phenotype, but when combined in the same cell results in a more severe fitness defect or lethality under a given condition. This term is reserved for high or low throughput studies with scores.

High-10.2114BioGRID
510146

Curated By

  • BioGRID