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SPT21 protein (Saccharomyces cerevisiae) - STRING interaction network
"SPT21" - Protein with a role in transcriptional silencing in Saccharomyces cerevisiae
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SPT21Protein 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; Required for normal transcription at a number of loci in yeast (758 aa)    
Predicted Functional Partners:
SPT10
Putative histone acetylase with a role in transcriptional silencing, sequence-specific activator of histone genes, binds specifically and cooperatively to pairs of UAS elements in core histone promoters, functions at or near the TATA box; Required for normal transcription at a number of loci in yeast. Affects transcription at Ty1 elements, at PHO5, STE6 and ADH2 (640 aa)
       
 
  0.935
SWI4
DNA binding component of the SBF complex (Swi4p-Swi6p), a transcriptional activator that in concert with MBF (Mbp1-Swi6p) regulates late G1-specific transcription of targets including cyclins and genes required for DNA synthesis and repair; Part of a complex involved in cell-cycle-dependent transcription. SWI4 and SWI6 are required for formation of the cell-cycle box factor-DNA complex. The repeated element in the upstream region of HO (5’-CACGAAAA-3’) is called the cell cycle box (CCB) (1093 aa)
       
 
  0.833
HHF2
Histone H4, core histone protein required for chromatin assembly and chromosome function; one of two identical histone proteins (see also HHF1); contributes to telomeric silencing; N-terminal domain involved in maintaining genomic integrity; Core component of nucleosome. Nucleosomes wrap and compact DNA into chromatin, limiting DNA accessibility to the cellular machineries which require DNA as a template. Histones thereby play a central role in transcription regulation, DNA repair, DNA replication and chromosomal stability. DNA accessibility is regulated via a complex set of post-trans [...] (103 aa)
       
 
  0.807
HHF1
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; Core component of nucleosome. Nucleosomes wrap and compact DNA into chromatin, limiting DNA accessibility to the cellular machineries which require DNA as a template. Histones thereby play a central role in transcription regulation, DNA repair, DNA replication and chromosomal stability. DNA accessibility is regulated via a complex set of post-trans [...] (103 aa)
       
 
  0.807
HHT2
Histone H3, core histone protein required for chromatin assembly, part of heterochromatin-mediated telomeric and HM silencing; one of two identical histone H3 proteins (see HHT1); regulated by acetylation, methylation, and phosphorylation; Core component of nucleosome. Nucleosomes wrap and compact DNA into chromatin, limiting DNA accessibility to the cellular machineries which require DNA as a template. Histones thereby play a central role in transcription regulation, DNA repair, DNA replication and chromosomal stability. DNA accessibility is regulated via a complex set of post-transla [...] (136 aa)
       
 
  0.724
SWI6
Transcription cofactor, forms complexes with Swi4p and Mbp1p to regulate transcription at the G1/S transition; involved in meiotic gene expression; cell wall stress induces phosphorylation by Mpk1p, which regulates Swi6p localization; Part of a complex involved in cell-cycle-dependent transcription. SWI4 and SWI6 are required for formation of the cell-cycle box factor-DNA complex. The repeated element in the upstream region of HO (5’-CACGAAAA-3’) is called the cell cycle box (CCB) (803 aa)
       
 
  0.696
MBP1
Transcription factor involved in regulation of cell cycle progression from G1 to S phase, forms a complex with Swi6p that binds to MluI cell cycle box regulatory element in promoters of DNA synthesis genes; Binds to MCB elements (Mlu I cell cycle box) found in the promoter of most DNA synthesis genes. Transcriptional activation by MBF has an important role in the transition from G1 to S phase. It may have a dual role in that it behaves as an activator of transcription at the G1-S boundary and as a repressor during other stages of the cell cycle (833 aa)
       
 
  0.692
HIR2
Subunit of the HIR complex, a nucleosome assembly complex involved in regulation of histone gene transcription; recruits Swi-Snf complexes to histone gene promoters; promotes heterochromatic gene silencing with Asf1p; Component of the HIR complex, which cooperates with ASF1 to promote replication-independent chromatin assembly. The HIR complex is also required for the periodic repression of three of the four histone gene loci during the cell cycle as well as for autogenous regulation of the HTA1-HTB1 locus by H2A and H2B. DNA- binding by the HIR complex may repress transcription by inh [...] (875 aa)
     
   
  0.688
HTA1
Histone H2A, core histone protein required for chromatin assembly and chromosome function; one of two nearly identical subtypes (see also HTA2); DNA damage-dependent phosphorylation by Mec1p facilitates DNA repair; acetylated by Nat4p; Core component of nucleosome which plays a central role in DNA double strand break (DSB) repair. Nucleosomes wrap and compact DNA into chromatin, limiting DNA accessibility to the cellular machineries which require DNA as a template. Histones thereby play a central role in transcription regulation, DNA repair, DNA replication and chromosomal stability. D [...] (132 aa)
       
 
  0.667
REG1
Regulatory subunit of type 1 protein phosphatase Glc7p, involved in negative regulation of glucose-repressible genes; Involved in RNA processing and negative regulation of glucose repression. Regulates the level of two antigens, P43 and P70. Binds to protein phosphatase type 1. Functions with REG2 and SNF1 protein kinase to regulate growth. Might regulate SNF1 directly or indirectly (1014 aa)
       
 
  0.658
Your Current Organism:
Saccharomyces cerevisiae
NCBI taxonomy Id: 4932
Other names: Candida robusta, Pachytichospora, S. cerevisiae, Saccharomyces, Saccharomyces capensis, Saccharomyces cerevisiae, Saccharomyces italicus, Saccharomyces oviformis, Saccharomyces uvarum var. melibiosus, lager beer yeast, yeast
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