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SPB4 protein (Saccharomyces cerevisiae) - STRING interaction network
"SPB4" - Putative ATP-dependent RNA helicase, nucleolar protein required for synthesis of 60S ribosomal subunits at a late step in the pathway in Saccharomyces cerevisiae
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SPB4Putative ATP-dependent RNA helicase, nucleolar protein required for synthesis of 60S ribosomal subunits at a late step in the pathway; sediments with 66S pre-ribosomes in sucrose gradients; ATP-binding RNA helicase involved in the biogenesis of 60S ribosomal subunits (PubMed-2408148, PubMed-25579579). Binds 90S pre-ribosomal particles and dissociates from pre-60S ribosomal particles after processing of 27SB pre-rRNA (PubMed-21825077). Required for the normal formation of 18S rRNA through the processing of pre-rRNAs at sites A0, A1 and A2, and the normal formation of 25S and 5.8S rRNAs [...] (606 aa)    
Predicted Functional Partners:
NOP7
Component of several different pre-ribosomal particles; forms a complex with Ytm1p and Erb1p that is required for maturation of the large ribosomal subunit; required for exit from G<sub>0</sub> and the initiation of cell proliferation; Component of the NOP7 complex, which is required for maturation of the 25S and 5.8S ribosomal RNAs and formation of the 60S ribosome (605 aa)
     
 
  0.998
DBP10
Putative ATP-dependent RNA helicase of the DEAD-box protein family, constituent of 66S pre-ribosomal particles; essential protein involved in ribosome biogenesis; ATP-binding RNA helicase involved in the biogenesis of 60S ribosomal subunits and is required for the normal formation of 25S and 5.8S rRNAs (995 aa)
   
 
0.998
PUF6
Pumilio-homology domain protein that binds the 3’ UTR of ASH1 mRNA and represses its translation, resulting in proper asymmetric localization of ASH1 mRNA; also co-sediments with the 60S ribosomal subunit and is required for its biogenesis; RNA-binding protein involved in post-transcriptional regulation. Component of the ASH1 mRNP which transports the ASH1 mRNA to the distal tip of the bud, where the ASH1 protein is translated and targeted to the daughter cell nucleus. Binds to the ASH1 3’-UTR containing the PUF consensus UUGU segment and represses its translation. This silencing of AS [...] (656 aa)
     
      0.997
NIP7
Nucleolar protein required for 60S ribosome subunit biogenesis, constituent of 66S pre-ribosomal particles; physically interacts with Nop8p and the exosome subunit Rrp43p; Required for proper 27S pre-rRNA processing and 60S ribosome subunit assembly (181 aa)
     
 
  0.996
DRS1
Nucleolar DEAD-box protein required for ribosome assembly and function, including synthesis of 60S ribosomal subunits; constituent of 66S pre-ribosomal particles; ATP-binding RNA helicase involved in ribosome assembly (752 aa)
   
 
0.995
DBP9
ATP-dependent RNA helicase of the DEAD-box family involved in biogenesis of the 60S ribosomal subunit; ATP-binding RNA helicase involved in the biogenesis of 60S ribosomal subunits and is required for the normal formation of 25S and 5.8S rRNAs (594 aa)
   
 
0.994
NOC3
Protein that forms a nuclear complex with Noc2p that binds to 66S ribosomal precursors to mediate their intranuclear transport; also binds to chromatin to promote the association of DNA replication factors and replication initiation; Required for synthesis of 60S ribosomal subunits and the transport of pre-ribosomes from the nucleoplasm to the cytoplasm. Also required for initiation of DNA replication. May function downstream of the origin recognition complex (ORC complex) in the loading of CDC6 and the minichromosome maintenance complex (MCM complex) onto chromatin during the G1 phase [...] (663 aa)
     
      0.993
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)
     
 
  0.991
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)
     
 
  0.991
NUG1
GTPase that associates with nuclear 60S pre-ribosomes, required for export of 60S ribosomal subunits from the nucleus; GTPase required for 60S ribosomal subunit export to the cytoplasm (520 aa)
     
 
  0.990
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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