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IRR1 protein (Saccharomyces cerevisiae) - STRING interaction network
"IRR1" - Subunit of the cohesin complex, which is required for sister chromatid cohesion during mitosis and meiosis and interacts with centromeres and chromosome arms, essential for viability in Saccharomyces cerevisiae
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Predicted Interactions
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textmining
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IRR1Subunit of the cohesin complex, which is required for sister chromatid cohesion during mitosis and meiosis and interacts with centromeres and chromosome arms, essential for viability; Component of cohesin complex, a complex required for the cohesion of sister chromatids after DNA replication. The cohesin complex apparently forms a large proteinaceous ring within which sister chromatids can be trapped. At anaphase, the MCD1/SCC1 subunit of the complex is cleaved and dissociates from chromatin, allowing sister chromatids to segregate. The cohesin complex may also play a role in spindle p [...] (1150 aa)    
Predicted Functional Partners:
MCD1
Essential subunit of the cohesin complex required for sister chromatid cohesion in mitosis and meiosis; apoptosis induces cleavage and translocation of a C-terminal fragment to mitochondria; expression peaks in S phase; Cleavable component of the cohesin complex involved in chromosome cohesion during cell cycle. The cohesin complex is required for the cohesion of sister chromatids after DNA replication. The cohesin complex apparently forms a large proteinaceous ring within which sister chromatids can be trapped. At metaphase-anaphase transition, this protein is cleaved by ESP1 and diss [...] (566 aa)
     
  0.999
SMC3
Subunit of the multiprotein cohesin complex required for sister chromatid cohesion in mitotic cells; also required, with Rec8p, for cohesion and recombination during meiosis; phylogenetically conserved SMC chromosomal ATPase family member; Involved in chromosome cohesion during cell cycle and in DNA repair. Central component of cohesin complex. The cohesin complex is required for the cohesion of sister chromatids after DNA replication. The cohesin complex apparently forms a large proteinaceous ring within which sister chromatids can be trapped. At anaphase, the complex is cleaved and d [...] (1230 aa)
     
  0.999
SMC1
Subunit of the multiprotein cohesin complex, essential protein involved in chromosome segregation and in double-strand DNA break repair; SMC chromosomal ATPase family member, binds DNA with a preference for DNA with secondary structure; Involved in chromosome cohesion during cell cycle and in DNA repair. Central component of cohesin complex. The cohesin complex is required for the cohesion of sister chromatids after DNA replication. The cohesin complex apparently forms a large proteinaceous ring within which sister chromatids can be trapped. At anaphase, the complex is cleaved and diss [...] (1225 aa)
     
  0.999
REC8
Meiosis-specific component of sister chromatid cohesion complex; maintains cohesion between sister chromatids during meiosis I; maintains cohesion between centromeres of sister chromatids until meiosis II; homolog of S. pombe Rec8p; Replaces the SCC1 mitosis-specific cohesin to ensure sister chromatid cohesion during meiosis. Is cleaved by ESP1 shortly before the first meiotic division, and dissociates from chromatin, allowing sister chromatids to segregate. Is protected from cleavage by SPO13 (680 aa)
     
  0.999
PDS5
Protein required for establishment and maintenance of sister chromatid condensation and cohesion, colocalizes with cohesin on chromosomes, may function as a protein-protein interaction scaffold; also required during meiosis; Essential for the establishment and maintenance of sister chromatid cohesion at centromere proximal and distal regions during S phase. Also required for chromosomal condensation (1277 aa)
     
 
  0.995
ESP1
Separase, a caspase-like cysteine protease that promotes sister chromatid separation by mediating dissociation of the cohesin Scc1p from chromatin; inhibits protein phosphatase 2A-Cdc55p to promote mitotic exit; inhibited by Pds1p; Caspase-like protease, which plays a central role in the chromosome segregation by cleaving the MCD1/SCC1 subunit of the cohesin complex at the onset of anaphase. During most of the cell cycle, it is inactivated by securin/PDS1 protein. It also promotes anaphase spindle elongation. A component of the FEAR (CDC14 early anaphase release) network which promotes [...] (1630 aa)
     
  0.982
ECO1
Acetyltransferase required for establishment of sister chromatid cohesion; modifies Smc3p at replication forks and Mcd1p in response to ds DNA breaks; has a C2H2-type zinc finger; mutations in human homolog ESCO2 cause Roberts syndrome; Required for establishment of sister chromatid cohesion during S phase but not for its further maintenance during G2 or M phases or for loading the cohesin complex onto DNA. Interacts with the three known alternate replication factor C (RFC) complexes, suggesting that these complexes have essential but redundant activity in cohesion establishment. Acts [...] (281 aa)
     
 
  0.979
CDC5
Polo-like kinase with multiple functions in mitosis and cytokinesis through substrate phosphorylation, also functions in adaptation to DNA damage during meiosis; has similarity to Xenopus Plx1 and S. pombe Plo1p; possible Cdc28p substrate; Protein kinase required for the cell cycle where it is involved in mitotic exit. A component of the fear (CDC14 early anaphase release) network which promotes CDC14 release from the nucleolus during early anaphase. Phosphorylates SCC1/MCD1 and NET1 (705 aa)
     
  0.963
SCC2
Subunit of cohesin loading factor (Scc2p-Scc4p), a complex required for loading of cohesin complexes onto chromosomes; involved in establishing sister chromatid cohesion during DSB repair via histone H2AX; evolutionarily-conserved adherin; Plays a structural role in chromatin. Involved in sister chromatid cohesion. Forms a complex with SCC4 required for the stable association of the cohesin complex with chromatin, which may act by hydrolyzing ATP from SMC1 and SMC3 heads. Also participates in DNA repair (1493 aa)
     
 
  0.952
TOP2
Topoisomerase II, relieves torsional strain in DNA by cleaving and re-sealing the phosphodiester backbone of both positively and negatively supercoiled DNA; cleaves complementary strands; localizes to axial cores in meiosis; Control of topological states of DNA by transient breakage and subsequent rejoining of DNA strands. Topoisomerase II makes double-strand breaks. Essential during mitosis and meiosis for proper segregation of daughter chromosomes (1428 aa)
     
   
  0.914
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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