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NAB2 protein (Saccharomyces cerevisiae) - STRING interaction network
"NAB2" - Nuclear polyadenylated RNA-binding protein required for nuclear mRNA export and poly(A) tail length control in Saccharomyces cerevisiae
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NAB2Nuclear polyadenylated RNA-binding protein required for nuclear mRNA export and poly(A) tail length control; binds nuclear pore protein Mlp1p; autoregulates mRNA levels; related to human hnRNPs; nuclear localization sequence binds Kap104p; This essential protein binds to polyadenylated RNA and single-stranded DNA. It may be involved not only in RNA processing but also in transcription regulation. Believed to associate directly with nascent RNA polymerase II transcripts and remain associated during subsequent nuclear RNA processing reactions (525 aa)    
Predicted Functional Partners:
GFD1
Coiled-coiled protein of unknown function, identified as a high-copy suppressor of a dbp5 mutation; High-copy suppressor of mutant alleles of ATP-dependent RNA helicase DBP5, which is involved in mRNA export from the nucleus. It may also play an important role in a late stage of NAB2-mRNA export (188 aa)
       
 
  0.978
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)
       
 
  0.968
YRA1
RNA binding protein required for export of poly(A)+ mRNA from the nucleus; proposed to couple mRNA export with 3’ end processing via its interactions with Mex67p and Pcf11p; functionally redundant with Yra2p, another REF family member; RNA-binding RNA annealing protein. May have a role in pre-mRNA metabolism. Component the TREX complex, which operates in coupling transcription elongation to mRNA export (226 aa)
       
 
  0.954
NPL3
RNA-binding protein that promotes elongation, regulates termination, and carries poly(A) mRNA from nucleus to cytoplasm; required for pre-mRNA splicing; dissociation from mRNAs promoted by Mtr10p; phosphorylated by Sky1p in the cytoplasm; Required for pre-rRNA processing and nuclear import as well as mitochondrial protein targeting. Binds to poly(A) (414 aa)
     
 
  0.916
CBC2
Small subunit of the heterodimeric cap binding complex with Sto1p; interacts with Npl3p, possibly to package mRNA for export from the nucleus; may have a role in telomere maintenance; contains an RNA-binding motif; Component of the CBC complex, which binds co- transcriptionally to the cap of pre-mRNAs and is involved in maturation, export and degradation of nuclear mRNAs. The CBC complex is required for efficient pre-mRNA splicing through efficient commitment complex and spliceosome formation. Together with NPL3, the CBC complex is required for export of mRNAs out of the nucleus. The C [...] (208 aa)
       
 
  0.916
MEX67
Poly(A)RNA binding protein involved in nuclear mRNA export, component of the nuclear pore; ortholog of human TAP; Involved in the export of mRNA from the nucleus to the cytoplasm (599 aa)
       
 
  0.892
NUP159
Nucleoporin, subunit of the Nup82 subcomplex of the nuclear pore; part of the nuclear pore that is found exclusively on the cytoplasmic side; required for mRNA export; regulates ADP release from the ATP-dependent RNA helicase Dbp5p; 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 [...] (1460 aa)
       
 
  0.891
MLP1
Myosin-like protein associated with the nuclear envelope, connects the nuclear pore complex with the nuclear interior; involved with Tel1p in telomere length control; involved with Pml1p and Pml39p in nuclear retention of unspliced mRNAs; Involved together with the closely related MLP2 in the structural and functional organization of perinuclear chromatin. MLP1/MLP2 associate with the nuclear pore complex and form filamentous structures along the nuclear periphery. According to PubMed-11862215 some telomeres are tethered to the nuclear periphery through MLP1/MLP2, probably mediated by [...] (1875 aa)
       
 
  0.889
GLE1
Cytoplasmic nucleoporin required for polyadenylated RNA export; not essential for protein import; contains a nuclear export signal; when bound to inositol hexakisphosphate (IP6), functions as an activator for the Dbp5p ATPase activity at the nuclear /.../complex during mRNA export; 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. It is specifically involved in a termin [...] (538 aa)
     
 
  0.854
NUP42
Subunit of the nuclear pore complex (NPC) that localizes exclusively to the cytoplasmic side; involved in RNA export, most likely at a terminal step; interacts with Gle1p; 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 transport factors across the NPC and a transport co [...] (430 aa)
       
 
  0.847
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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