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PXR1 protein (Saccharomyces cerevisiae) - STRING interaction network
"PXR1" - Essential protein involved in rRNA and snoRNA maturation in Saccharomyces cerevisiae
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second shell of interactors
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Known Interactions
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experimentally determined
Predicted Interactions
gene neighborhood
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gene co-occurrence
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textmining
co-expression
protein homology
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PXR1Essential protein involved in rRNA and snoRNA maturation; competes with TLC1 RNA for binding to Est2p, suggesting a role in negative regulation of telomerase; human homolog inhibits telomerase; contains a G-patch RNA interacting domain; Involved in rRNA-processing at A0, A1 and A2 sites through its action in U18 and U24 snoRNA 3’-end final trimming. Negative regulator of telomerase through competition for binding to EST2 with TLC1 (271 aa)    
Predicted Functional Partners:
MAK16
Essential nuclear protein, constituent of 66S pre-ribosomal particles; required for maturation of 25S and 5.8S rRNAs; required for maintenance of M1 satellite double-stranded RNA of the L-A virus; Its role might be as part of the apparatus concerned with the nuclear events of the cell cycle (306 aa)
     
   
  0.987
RPF1
Nucleolar protein involved in the assembly and export of the large ribosomal subunit; constituent of 66S pre-ribosomal particles; contains a sigma(70)-like motif, which is thought to bind RNA; Essential protein. Required for biogenesis of the 60S ribosomal subunit (295 aa)
     
   
  0.986
NOP4
Nucleolar protein, essential for processing and maturation of 27S pre-rRNA and large ribosomal subunit biogenesis; constituent of 66S pre-ribosomal particles; contains four RNA recognition motifs (RRMs); Required for 60S ribosomal subunit synthesis. Probably involved in the processing of 27S rRNA to produce mature 25S rRNA (685 aa)
     
        0.979
UTP23
Essential nucleolar protein that is a component of the SSU (small subunit) processome involved in 40S ribosomal subunit biogenesis; has homology to PINc domain protein Fcf1p, although the PINc domain of Utp23p is not required for function; Involved in rRNA-processing and ribosome biogenesis (254 aa)
     
        0.978
SDA1
Highly conserved nuclear protein required for actin cytoskeleton organization and passage through Start, plays a critical role in G1 events, binds Nap1p, also involved in 60S ribosome biogenesis; Required for 60S pre-ribosomal subunits export to the cytoplasm. May also be required for 60S ribosomal subunit maturation and accumulation. Involved in G1 events and passage through start, and possibly actin cytoskeleton organization (767 aa)
     
        0.976
EST2
Reverse transcriptase subunit of the telomerase holoenzyme, essential for telomerase core catalytic activity, involved in other aspects of telomerase assembly and function; mutations in human homolog are associated with aplastic anemia; Telomerase is a ribonucleoprotein enzyme essential for the replication of chromosome termini in most eukaryotes. It elongates telomeres. It is a reverse transcriptase that adds simple sequence repeats to chromosome ends by copying a template sequence within the RNA component of the enzyme (884 aa)
       
  0.973
SPB1
AdoMet-dependent methyltransferase involved in rRNA processing and 60S ribosomal subunit maturation; methylates G2922 in the tRNA docking site of the large subunit rRNA and in the absence of snR52, U2921; suppressor of PAB1 mutants; Required for proper assembly of pre-ribosomal particles during the biogenesis of the 60S ribosomal subunit. Specifically methylates the guanosine in position 2922 of the 25S rRNA at the stage of 27S pre-rRNA maturation. Methylates also the uridine in position 2921 in the absence of methylation of this residue guided by snoRNA snR52 at the stage of 35S pre-r [...] (841 aa)
     
   
  0.969
RRP14
Essential protein, constituent of 66S pre-ribosomal particles; interacts with proteins involved in ribosomal biogenesis and cell polarity; member of the SURF-6 family; Involved in ribosome biogenesis and cell polarity. Required for the synthesis of both 40S and 60S ribosomal subunits and may also play some direct role in correct positioning of the mitotic spindle during mitosis (434 aa)
     
        0.968
RRP36
Component of 90S preribosomes; involved in early cleavages of the 35S pre-rRNA and in production of the 40S ribosomal subunit; Component of the 90S pre-ribosome involved in the maturation of rRNAs. Required for early cleavages of the pre-RNAs in the 40S ribosomal subunit maturation pathway (300 aa)
     
        0.966
EBP2
Required for 25S rRNA maturation and 60S ribosomal subunit assembly; localizes to the nucleolus and in foci along nuclear periphery; constituent of 66S pre-ribosomal particles; cooperates with Rrs1p and Mps3p to mediate telomere clustering by bindin /.../p, but is not involved in telomere tethering; Required for the processing of the 27S pre-rRNA. Probably involved in the step of the processing of the 27 SA precursor into the 27 SB intermediate (427 aa)
     
   
  0.959
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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