STRINGSTRING
NSI1 protein (Saccharomyces cerevisiae) - STRING interaction network
"NSI1" - Protein of unknown function that may interact with ribosomes, based on co-purification experiments in Saccharomyces cerevisiae
Nodes:
Network nodes represent proteins
splice isoforms or post-translational modifications are collapsed, i.e. each node represents all the proteins produced by a single, protein-coding gene locus.
Node Color
colored nodes:
query proteins and first shell of interactors
white nodes:
second shell of interactors
Node Content
empty nodes:
proteins of unknown 3D structure
filled nodes:
some 3D structure is known or predicted
Edges:
Edges represent protein-protein associations
associations are meant to be specific and meaningful, i.e. proteins jointly contribute to a shared function; this does not necessarily mean they are physically binding each other.
Known Interactions
from curated databases
experimentally determined
Predicted Interactions
gene neighborhood
gene fusions
gene co-occurrence
Others
textmining
co-expression
protein homology
Your Input:
Neighborhood
Gene Fusion
Cooccurence
Coexpression
Experiments
Databases
Textmining
[Homology]
Score
NSI1Protein of unknown function that may interact with ribosomes, based on co-purification experiments; Myb-like DNA-binding protein that may bind to the Ter region of rDNA; interacts physically with Fob1p; DNA-binding protein that recognizes sequence-specific replication termini (Ter sites) within rDNA (PubMed-14576157). Binds to rDNA terminator elements and mediates efficient RNA polymerase I transcription termination (PubMed-22805593). Required for rDNA silencing at the non-transcribed spacer 1 (NTS1). Promotes the association of SIR2 with NTS1 and contributes to maintenance of rDNA sta [...] (570 aa)    
Predicted Functional Partners:
PRP22
DEAH-box RNA-dependent ATPase/ATP-dependent RNA helicase, associates with lariat intermediates before the second catalytic step of splicing; mediates ATP-dependent mRNA release from the spliceosome and unwinds RNA duplexes; Acts late in the splicing of pre-mRNA. Mediates the release of the spliced mRNA from spliceosomes (1145 aa)
     
 
  0.937
MSL5
Component of the commitment complex, which defines the first step in the splicing pathway; essential protein that interacts with Mud2p and Prp40p, forming a bridge between the intron ends; also involved in nuclear retention of pre-mRNA; Required for pre-spliceosome formation, which is the first step of pre-mRNA splicing. 2 commitment complexes, CC1 and CC2, have been defined. CC1 is a basal complex dependent only on the 5’-splice site. CC2 is a complex of lower mobility and is dependent on a branchpoint as well as a 5’-splice site region. This protein is involved in CC2 formation where [...] (476 aa)
     
 
  0.926
PRP46
Member of the NineTeen Complex (NTC) that contains Prp19p and stabilizes U6 snRNA in catalytic forms of the spliceosome containing U2, U5, and U6 snRNAs; Involved in pre-mRNA splicing. May also be required for cell cycle progression at G2/M (By similarity) (451 aa)
     
 
  0.916
PRP19
Splicing factor associated with the spliceosome; contains a U-box, a motif found in a class of ubiquitin ligases, and a WD40 domain; Probable ubiquitin-protein ligase involved in pre-mRNA splicing. Acts as a central component of the NTC complex (or PRP19-associated complex) that associates to the spliceosome to mediate conformational rearrangement or to stabilize the structure of the spliceosome after U4 snRNA dissociation, which leads to spliceosome maturation. It is also probably involved in DNA repair (503 aa)
     
 
  0.895
PRP3
Splicing factor, component of the U4/U6-U5 snRNP complex; Participates in pre-mRNA splicing. Part of the U4/U5/U6 tri-snRNP complex, one of the building blocks of the spliceosome (469 aa)
     
 
  0.882
PRP8
Component of the U4/U6-U5 snRNP complex, involved in the second catalytic step of splicing; mutations of human Prp8 cause retinitis pigmentosa; Functions as a scaffold that mediates the ordered assembly of spliceosomal proteins and snRNAs. Required for association of BRR2 with the spliceosomal U5 snRNP, and the subsequent assembly of the U4/U6-U5 tri-snRNP complex. Functions as scaffold that positions spliceosomal U2, U5 and U6 snRNAs at splice sites on pre-mRNA substrates, so that splicing can occur. Interacts with both the 5’ and the 3’ splice site, as well as the branch region. Has [...] (2413 aa)
     
 
  0.873
PRP11
Subunit of the SF3a splicing factor complex, required for spliceosome assembly; mRNA splicing factors, PRP9, PRP11, and PRP21, are necessary for addition of the U2 snRNP to the pre-mRNA in an early step of spliceosome assembly (266 aa)
     
      0.835
CUS1
Protein required for assembly of U2 snRNP into the spliceosome, forms a complex with Hsh49p and Hsh155p; Essential splicing protein required for U2 snRNP binding to pre-mRNA during spliceosome assembly (436 aa)
     
      0.819
CLF1
Member of the NineTeen Complex (NTC) that contains Prp19p and stabilizes U6 snRNA in catalytic forms of the spliceosome containing U2, U5, and U6 snRNAs; homolog of Drosophila crooked neck protein; interacts with U1 snRNP proteins; Involved in pre-mRNA splicing and cell cycle progression. Required for the spliceosome assembly by promoting the functional integration of the U4/U6.U5 tri-snRNP particle into the U1-, U2-dependent pre-spliceosome. Also recruits PRP19 to the spliceosome, as a component of the NTC complex (or PRP19- associated complex). The association of the NTC complex to t [...] (687 aa)
     
 
  0.813
PRP9
Subunit of the SF3a splicing factor complex, required for spliceosome assembly; acts after the formation of the U1 snRNP-pre-mRNA complex; mRNA splicing factors, PRP9, PRP11, and PRP21, are necessary for binding of the U2 snRNP to the pre-mRNA in an early step of spliceosome assembly (530 aa)
     
 
  0.811
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
Server load: low (8%) [HD]