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NPA3 protein (Saccharomyces cerevisiae) - STRING interaction network
"NPA3" - Member of the conserved GPN-loop GTPase family in Saccharomyces cerevisiae
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protein homology
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NPA3Member of the conserved GPN-loop GTPase family; has a role in transport of RNA polymerase II to the nucleus; exhibits GTP-dependent binding to PolII; has ATPase activity; involved in sister chromatid cohesion; phosphorylated by the Pcl1p-Pho85p kina /.../plex; human homolog XAB1 interacts with human RNA polymerase II; Small GTPase required for proper nuclear import of RNA polymerase II (RNAPII) (PubMed-20855544, PubMed-21844196). May act at an RNAP assembly step prior to nuclear import (PubMed-23267056). Promotes sister chromatid separation during anaphase (PubMed-21532343) (385 aa)    
Predicted Functional Partners:
GPN3
Putative protein of unknown function; YLR243W is an essential gene; Small GTPase required for proper nuclear localization of RNA polymerase II and III (RNAPII and RNAPIII). May act at an RNAP assembly step prior to nuclear import (PubMed-23267056). Promotes sister chromatid separation during anaphase (PubMed-23324351) (272 aa)
   
 
0.970
GPN2
Protein of unknown function required for establishment of sister chromatid cohesion; contains an ATP/GTP binding site motif; similar to YLR243W and is highly conserved across species and homologous to human gene GPN2/ATPBD1B; Small GTPase required for proper localization of RNA polymerase II and III (RNAPII and RNAPIII). May act at an RNAP assembly step prior to nuclear import (PubMed-23267056). Required for establishment of sister chromatid cohesion (PubMed-18439903) (347 aa)
   
 
0.968
RPB7
RNA polymerase II subunit B16; forms two subunit dissociable complex with Rpb4p; involved in recruitment of 3’-end processing factors to transcribing RNA polymerase II complex and in export of mRNA to cytoplasm under stress conditions; also involved /.../anslation initiation; DNA-dependent RNA polymerase catalyzes the transcription of DNA into RNA using the four ribonucleoside triphosphates as substrates. Component of RNA polymerase II which synthesizes mRNA precursors and many functional non-coding RNAs. Pol II is the central component of the basal RNA polymerase II transcription mach [...] (171 aa)
   
 
  0.936
RPO26
RNA polymerase subunit ABC23, common to RNA polymerases I, II, and III; part of central core; similar to bacterial omega subunit; DNA-dependent RNA polymerases catalyze the transcription of DNA into RNA using the four ribonucleoside triphosphates as substrates. Common component of RNA polymerases I, II and III which synthesize ribosomal RNA precursors, mRNA precursors and many functional non-coding RNAs, and small RNAs, such as 5S rRNA and tRNAs, respectively. Pol II is the central component of the basal RNA polymerase II transcription machinery. RNA polymerases are composed of mobile [...] (155 aa)
     
 
  0.827
RPB11
RNA polymerase II subunit B12.5; part of central core; similar to Rpc19p and bacterial alpha subunit; DNA-dependent RNA polymerase catalyzes the transcription of DNA into RNA using the four ribonucleoside triphosphates as substrates. Component of RNA polymerase II which synthesizes mRNA precursors and many functional non-coding RNAs. Pol II is the central component of the basal RNA polymerase II transcription machinery. It is composed of mobile elements that move relative to each other. RPB11 is part of the core element with the central large cleft. Seems to be involved transcript term [...] (120 aa)
     
 
  0.792
SET2
Histone methyltransferase with a role in transcriptional elongation, methylates a lysine residue of histone H3; associates with the C-terminal domain of Rpo21p; histone methylation activity is regulated by phosphorylation status of Rpo21p; Histone methyltransferase that methylates histone H3 to form H3K36me. Involved in transcription elongation as well as in transcription repression. The methyltransferase activity requires the recruitment to the RNA polymerase II, which is CTK1 dependent (733 aa)
     
      0.789
RPB3
RNA polymerase II third largest subunit B44, part of central core; similar to prokaryotic alpha subunit; DNA-dependent RNA polymerase catalyzes the transcription of DNA into RNA using the four ribonucleoside triphosphates as substrates. Component of RNA polymerase II which synthesizes mRNA precursors and many functional non-coding RNAs. Pol II is the central component of the basal RNA polymerase II transcription machinery. It is composed of mobile elements that move relative to each other. RPB3 is part of the core element with the central large cleft and the clamp element that moves to [...] (318 aa)
     
 
  0.780
TFG2
TFIIF (Transcription Factor II) middle subunit; involved in both transcription initiation and elongation of RNA polymerase II; homologous to human RAP30; TFIIF is a general transcription initiation factor that binds to RNA polymerase II. Its functions include the recruitment of RNA polymerase II to the promoter bound DNA-TBP-TFIIB complex, decreasing the affinity of RNA polymerase II for non-specific DNA, allowing for the subsequent recruitment of TFIIE and TFIIH, and facilitating RNA polymerase II elongation. TFG2 shows ATP- dependent DNA-helicase activity (By similarity) (400 aa)
     
      0.775
ASR1
Ubiquitin ligase that modifies and regulates RNA Pol II; involved in a putative alcohol-responsive signaling pathway; accumulates in the nucleus under alcohol stress; contains a Ring/PHD finger domain similar to the mammalian rA9 protein; Required for tolerance to alcohol (288 aa)
       
      0.774
RPB2
RNA polymerase II second largest subunit B150, part of central core; similar to bacterial beta subunit; DNA-dependent RNA polymerase catalyzes the transcription of DNA into RNA using the four ribonucleoside triphosphates as substrates. Second largest component of RNA polymerases II which synthesizes mRNA precursors and many functional non-coding RNAs. Proposed to contribute to the polymerase catalytic activity and forms the polymerase active center together with the largest subunit. Pol II is the central component of the basal RNA polymerase II transcription machinery. During a transcr [...] (1224 aa)
     
 
  0.762
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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