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PSE1 protein (Saccharomyces cerevisiae) - STRING interaction network
"PSE1" - Karyopherin/importin that interacts with the nuclear pore complex in Saccharomyces cerevisiae
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Known Interactions
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Predicted Interactions
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textmining
co-expression
protein homology
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PSE1Karyopherin/importin that interacts with the nuclear pore complex; acts as the nuclear import receptor for specific proteins, including Pdr1p, Yap1p, Ste12p, and Aft1p; Functions in nuclear protein import as nuclear transport receptor. Serves as receptor for classical and arginine/glycine- rich nuclear localization signals (cNLS and rg-NLS) in cargo substrates (PubMed-15367670). Its predominant cargo substrate seems to be ribosomal proteins and ribosome biogenesis trans- and cis-acting factors (PubMed-9182759, PubMed-9321403, PubMed-15367670). Required for nuclear transport of YAP1, NO [...] (1089 aa)    
Predicted Functional Partners:
SRP1
Karyopherin alpha homolog, forms a dimer with karyopherin beta Kap95p to mediate import of nuclear proteins, binds the nuclear localization signal of the substrate during import; may also play a role in regulation of protein degradation; Binds specifically and directly to substrates containing either a simple or bipartite NLS motif. Promotes docking of import substrates to the nuclear envelope. Seems to act as a cytosolic receptor for both simple and bipartite NLS motifs (By similarity) (542 aa)
     
 
  0.995
KAP95
Karyopherin beta, forms a complex with Srp1p/Kap60p; interacts with nucleoporins to mediate nuclear import of NLS-containing cargo proteins via the nuclear pore complex; regulates PC biosynthesis; GDP-to-GTP exchange factor for Gsp1p; Importin beta subunit that functions in nuclear protein import through association with the importin alpha subunit, which binds to the classical nuclear localization signal (cNLS) in cargo substrates (PubMed-7622450). Docking of the importin/substrate complex to the nuclear pore complex (NPC) is mediated by importin beta through binding to nucleoporin FxF [...] (861 aa)
     
 
  0.995
KAP104
Transportin or cytosolic karyopherin beta 2; functions in the rg-nuclear localization signal-mediated nuclear import/reimport of mRNA-binding proteins Nab2p and Hrp1p; regulates asymmetric protein synthesis in daughter cells during mitosis; Functions in nuclear protein import as nuclear transport receptor. Serves as receptor for arginine/glycine-rich nuclear localization signals (rg-NLS) and PY-NLS in cargo substrates. Its predominant cargo substrate seems to be mRNA-binding proteins. Required for nuclear transport of NAB2, HRP1/NAB4 and TFG2. Mediates docking of the importin/substrate [...] (918 aa)
     
 
  0.990
SXM1
Nuclear transport factor (karyopherin) involved in protein transport between the cytoplasm and nucleoplasm; similar to Nmd5p, Cse1p, Lph2p, and the human cellular apoptosis susceptibility protein, CAS1; Nuclear transport factor (karyopherin) involved in protein transport between the cytoplasm and nucleoplasm. Required for the nuclear import of ribosomal proteins (RPL11, RPL16, RPL25, RPL31A), the poly(A)-binding protein PAB1, the HO endonuclease or the tRNA and snRNA chaperone LHP1. Indirectly involved in nuclear mRNA export through its PAB1 nuclear import activity (944 aa)
     
 
  0.985
NUP53
Subunit of the nuclear pore complex (NPC), interacts with karyopherin Kap121p or with Nup170p via overlapping regions of Nup53p, involved in activation of the spindle checkpoint mediated by the Mad1p-Mad2p complex; Functions as a component of the nuclear pore complex (NPC). NPC components, collectively referred to as nucleoporins (NUPs), can play the role of both NPC structural components and of docking or interaction partners for transiently associated nuclear transport factors. Active directional transport is assured by both, a Phe-Gly (FG) repeat affinity gradient for these transpor [...] (475 aa)
       
 
  0.980
GSP1
Ran GTPase, GTP binding protein (mammalian Ranp homolog) involved in the maintenance of nuclear organization, RNA processing and transport; regulated by Srm1p, Rna1p, Yrb1p, Yrb2p, Yrp4p, Yrb30p, Cse1p and Kap95p; yeast Gsp2p homolog; GTP-binding protein involved in nucleocytoplasmic transport. Required for the import of protein into the nucleus and also for RNA export. Essential for cell viability. By analogy with Ras, Ran may be activated when GTP is exchanged for bound GDP by RCC1 and inactivated when GTP is hydrolyzed by Ran upon activation by RanGAP1 (219 aa)
     
 
  0.974
URA2
Bifunctional carbamoylphosphate synthetase/aspartate transcarbamylase; catalyzes the first two enzymatic steps in the de novo biosynthesis of pyrimidines; both activities are subject to feedback inhibition by UTP; This protein is a "fusion" protein encoding three enzymatic activities of the pyrimidine pathway (GATase, CPSase, and ATCase) (2214 aa)
     
 
  0.968
NMD5
Karyopherin, a carrier protein involved in nuclear import of proteins; importin beta homolog; Active in protein import into the nucleus. Its major import substrate is transcription elongation factor TFIIS (1048 aa)
     
 
  0.966
CRM1
Major karyopherin, involved in export of proteins, RNAs, and ribosomal subunits from the nucleus; exportin; Receptor for the leucine-rich nuclear export signal (NES) (1084 aa)
     
 
  0.961
KAP114
Karyopherin, responsible for nuclear import of Spt15p, Sua7p, histones H2A and H2B, and Nap1p; amino terminus shows similarity to those of other importins, particularly Cse1p; localization is primarily nuclear; Required for nuclear protein import and mediates docking of import substrate to distinct nucleoporins. Serves a receptor for nuclear localization signals. Mediates the nuclear import of TATA-binding protein (TBP) and of histones H2A and H2B (1004 aa)
     
 
  0.956
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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