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TPA1 protein (Saccharomyces cerevisiae) - STRING interaction network
"TPA1" - Poly(rA)-binding protein involved in translation termination efficiency, mRNA poly(A) tail length and mRNA stability in Saccharomyces cerevisiae
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TPA1Poly(rA)-binding protein involved in translation termination efficiency, mRNA poly(A) tail length and mRNA stability; interacts with Sup45p (eRF1), Sup35p (eRF3) and Pab1p; similar to prolyl 4-hydroxylases; binds Fe(III) and 2-oxoglutarate; Prolyl 3,4-dihydroxylase that catalyzes 3,4- dihydroxylation of ’Pro-64’ of small ribosomal subunit RPS23 (RPS23A and RPS23B), thereby regulating protein translation termination efficiency. Part of a messenger ribonucleoprotein (mRNP) complex at the 3’-UTR of mRNAs. It associates specifically with components of the translation termination complex an [...] (644 aa)    
Predicted Functional Partners:
PAB1
Poly(A) binding protein, part of the 3’-end RNA-processing complex, mediates interactions between the 5’ cap structure and the 3’ mRNA poly(A) tail, involved in control of poly(A) tail length, interacts with translation factor eIF-4G; Binds the poly(A) tail of mRNA. Appears to be an important mediator of the multiple roles of the poly(A) tail in mRNA biogenesis, stability and translation. In the nucleus, interacts with the nuclear cleavage factor IA (CFIA), which is required for both mRNA cleavage and polyadenylation. Is also required for efficient mRNA export to the cytoplasm. Acts in [...] (577 aa)
     
 
  0.827
ETT1
Nuclear protein that inhibits replication of Brome mosaic virus; S. cerevisiae is a model system for studying replication of positive-strand RNA viruses in their natural hosts; deletion increases stop codon readthrough; Required for correct translation termination and probably involved in regulation of hypoxic gene expression in association TPA1. Inhibits replication of Brome mosaic virus (412 aa)
     
 
  0.821
ARX1
Shuttling pre-60S factor; involved in the biogenesis of ribosomal large subunit biogenesis; interacts directly with Alb1; responsible for Tif6 recycling defects in absence of Rei1; associated with the ribosomal export complex; Probable metalloprotease involved in proper assembly of pre-ribosomal particles during the biogenesis of the 60S ribosomal subunit. Accompanies the pre-60S particles to the cytoplasm (593 aa)
     
        0.817
SUP45
Polypeptide release factor (eRF1) in translation termination; mutant form acts as a recessive omnipotent suppressor; methylated by Mtq2p-Trm112p in ternary complex eRF1-eRF3-GTP; mutation of methylation site confers resistance to zymocin; Directs the termination of nascent peptide synthesis (translation) in response to the termination codons UAA, UAG and UGA (437 aa)
     
 
  0.808
YEF3
Translation elongation factor 3; contains two ABC cassettes; binds and hydrolyzes ATP; YEF3 has a paralog, HEF3, that arose from the whole genome duplication; Required for the ATP-dependent release of deacylated tRNA from the ribosomal E-site during protein biosynthesis. Stimulates the eEF1A-dependent binding of aminoacyl-tRNA to the ribosomal A-site, which has reduced affinity for tRNA as long as the E-site is occupied. Plays a role as a negative regulator of the GCN2 kinase activity; impairs GCN1-mediated GCN2 activation on ribosomes by reducing GCN1-ribosome affinity, and hence GCN2 [...] (1044 aa)
     
 
  0.763
HMS1
bHLH protein with similarity to myc-family transcription factors; overexpression confers hyperfilamentous growth and suppresses the pseudohyphal filamentation defect of a diploid mep1 mep2 homozygous null mutant; Involved in exit from mitosis and pseudohyphal differentiation (434 aa)
       
 
  0.729
NOP2
Probable RNA m(5)C methyltransferase, essential for processing and maturation of 27S pre-rRNA and large ribosomal subunit biogenesis; localized to the nucleolus; constituent of 66S pre-ribosomal particles; S-adenosyl-L-methionine-dependent methyltransferase that specifically methylates the C(5) position of cytosine 2870 (m5C2870) in 25S rRNA. Required for 60S ribosomal subunit synthesis and processing (618 aa)
     
   
  0.727
ECM3
Non-essential protein of unknown function; involved in signal transduction and the genotoxic response; induced rapidly in response to treatment with 8-methoxypsoralen and UVA irradiation; May be involved in cell wall organization and biogenesis (613 aa)
     
      0.722
SUP35
Translation termination factor eRF3, has a role in mRNA deadenylation and decay; altered protein conformation creates the [PSI(+)] prion that alters translational fidelity and results in a nonsense suppressor phenotype; Involved in translation termination. Stimulates the activity of ERF1. Binds guanine nucleotides. Recruited by polyadenylate-binding protein PAB1 to poly(A)-tails of mRNAs. Interaction with PAB1 is also required for regulation of normal mRNA decay through translation termination-coupled poly(A) shortening (685 aa)
     
 
  0.687
PRP43
RNA helicase in the DEAH-box family, functions in both RNA polymerase I and polymerase II transcript metabolism, involved in release of the lariat-intron from the spliceosome; Pre-mRNA processing factor involved in disassembly of spliceosomes after the release of mature mRNA (767 aa)
     
   
  0.678
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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