STRINGSTRING
STRING protein interaction network
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:
a 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 to 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
Cooccurrence
Coexpression
Experiments
Databases
Textmining
[Homology]
Score
nifSPutative desulfurase involved in iron-sulfur clusters for NAD biosynthesis; Catalyzes the removal of elemental sulfur from cysteine to produce alanine (By similarity). Seems to be required for NAD biosynthesis. (395 aa)    
Predicted Functional Partners:
sufU
Iron-sulfur cluster assembly scaffold protein; Its function is controversial. Has been generally assumed to be an iron-sulfur cluster assembly scaffold protein , but more recent evidence suggest it is a sulfurtransferase rather than a scaffold assembly protein. Has been shown to bind low levels of a labile, air- sensitive Fe-S cluster; this can be assembled under anaerobic conditions from FeCl(3) and Li(2)S. Has been shown to be able to transfer this Fe-S cluster to an acceptor protein. Stimulates the cysteine desulfurase activity of SufS, for which it acts as a second substrate. Alkyl [...]
 
 0.995
thiI
Putative persulfide ATP pyrophosphatase involved in thiamine biosynthesis and tRNA modification; Catalyzes the ATP-dependent transfer of a sulfur to tRNA to produce 4-thiouridine in position 8 of tRNAs, which functions as a near-UV photosensor. Also catalyzes the transfer of sulfur to the sulfur carrier protein ThiS, forming ThiS-thiocarboxylate. This is a step in the synthesis of thiazole, in the thiamine biosynthesis pathway. The sulfur is donated as persulfide by IscS.
  
 0.962
moeB
Molybdopterin biosynthesis adenylyltransferase; Catalyzes the adenylation by ATP of the carboxyl group of the C-terminal glycine of sulfur carrier protein MoaD.
   
 0.946
nadA
Quinolinate synthetase; Catalyzes the condensation of iminoaspartate with dihydroxyacetone phosphate to form quinolinate.
 
  
 0.924
niaR
Transcriptional repressor of de novo NAD biosynthesis; In the presence of nicotinic acid represses transcription of the nadBCA and nifS-nadR operons. Also binds to DNA upstream of the niaP gene, probably regulating it as well. May bind nicotinic acid.
  
    0.922
iscSB
Cysteine desulfurase; Catalyzes the removal of elemental sulfur from cysteine to produce alanine.
  
  
 
0.918
iscSA
Cysteine desulfurase involved in tRNA thiolation; Catalyzes the removal of elemental sulfur from cysteine to produce alanine.
  
  
0.916
nadC
Nicotinate-nucleotide pyrophosphorylase; Involved in the catabolism of quinolinic acid (QA).
 
  
 0.912
nadB
L-aspartate oxidase; Catalyzes the oxidation of L-aspartate to iminoaspartate.
 
    0.896
yutI
Putative iron-sulfur scaffold protein; May be involved in the formation or repair of [Fe-S] clusters present in iron-sulfur proteins.
 
 
 0.866
Your Current Organism:
Bacillus subtilis 168
NCBI taxonomy Id: 224308
Other names: B. subtilis subsp. subtilis str. 168, Bacillus subtilis subsp. subtilis 168, Bacillus subtilis subsp. subtilis str. 168, Bacillus subtilis subsp. subtilis str. BGSC 1A700
Server load: low (24%) [HD]
STRING is a Core Data Resource as designated by Global Biodata Coalition and ELIXIR.