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
nifWNitrogen fixation protein NifW; May protect the nitrogenase Fe-Mo protein from oxidative damage; Belongs to the NifW family. (106 aa)    
Predicted Functional Partners:
nifZ
Nitrogen Fixation protein[nifZ], 51% identity (67% similarity) SwissProt;P14889,66% similarity to SwissProt;P23124. Has PF04319:NifZ domain;(IPR007415)This short protein is found in the nif (nitrogen fixation) operon. Its function is unknown but is probably involved in nitrogen fixation or regulating some component of this process. This 75 residue region is presumed to be a domain. It is found in isolation in some members and in the amino terminal half of the longer NifZ proteins. No Signal Peptide Or TMH reported Present; High confidence in function and specificity.
 
  
 0.961
azo0549
Conserved hypothetical protein. Homology to orf8 of Azotobacter vinelandii of 36% (tremble:Q44542). No domains predicted. No Signal peptide or TMH present.
 
   
 0.929
nifB
Nitrogen fixation protein; FeMo cofactor biosynthesis protein nifB. PROBABLY INVOLVED IN THE SYNTHESIS OF THE FE-MO COFACTOR; High confidence in function and specificity.
 
  
 0.909
nifK
Nitrogenase molybdenum-iron protein beta chain; This molybdenum-iron protein is part of the nitrogenase complex that catalyzes the key enzymatic reactions in nitrogen fixation; Belongs to the NifD/NifK/NifE/NifN family.
 
  
 0.898
nifV
Homocitrate synthase is involved in the biosynthesis of the iron-molybdenum cofactor of nitrogenase and catalyzes the condensation of acetyl-CoA and alpha-ketoglutarate into homocitrate. Similar to sprot|NIFV_AZOVI (51%) and to sprot|NIV1_ANASP (42%). Pfam (PF00682): HMG-CoA Lyase-like family InterPro (PS00815): Alpha-isopropylmalate and homocitrate synthase; High confidence in function and specificity; Belongs to the alpha-IPM synthase/homocitrate synthase family.
 
  
 0.898
nifT
Nitrogen fixation protein [nifT],51% identity(72% Similarity) to SwissProt;P09427, TrEMBL;Q93JU8,57% identity. Has PF06988:NifT/FixU protein(IPR009727);This family consists of several NifT and FixU bacterial proteins. The function of NifT is unknown although it is thought that the protein may be involved in biosynthesis of the FeMo cofactor of nitrogenase although perturbation of nifT expression in K. pneumoniae has only a limited effect on nitrogen fixation. No Signal peptide or TMH present; High confidence in function and specificity.
 
  
 0.874
azo0558
Conserved hypothetical protein(Has probable Nif-associated protein function)41% identity(62% similarity) to TrEMBL;Q9KJL5. Has PF03270(IPR004952):Protein of unknown function, DUF269;Members of this family may be involved in nitrogen fixation, since they are found within nitrogen fixation operons. NO Signal Peptide or TMH present; Family membership.
 
  
 0.872
nifQ
Putative NifQ protein. Homology to nifQ of A. vinelandii of 33% (sprot|NIFQ_AZOVI(SRS) NifQ is involved in early stages of the biosynthesis of the iron-molybdenum cofactor (FeMo-co), which is an integral part of the active site of dinitrogenase [2]. The conserved C-terminal cysteine residues may be involved in metal binding. Pfam: NifQ no signal peptide no TMHs; Family membership.
 
  
 0.870
nifD
Nitrogenase molybdenum-iron protein alpha chain (EC 1.18.6.1) (Nitrogenase component I) (Dinitrogenase). The key enzymatic reactions in nitrogen fixation are catalyzed by the nitrogenase complex which has 2 components: the iron protein and the molybdenum-iron protein; High confidence in function and specificity.
 
  
 0.849
nifN
Probable nitrogenase iron-molybdenum cofactor biosynthesis protein NifN. Homology to nifN of A. vielandii of 60% (sprot|NIFN_AZOVI). This protein may play a role in the biosynthesis of the prosthetic group of nitrogenase (FeMo cofactor). InterPro: Oxidoreductase nitrogenase component 1 (IPR000510) Pfam: Nitrogenease component 1 type oxidoreductase probable signal peptide no TMHs; High confidence in function and specificity; Belongs to the NifD/NifK/NifE/NifN family.
 
  
 0.846
Your Current Organism:
Azoarcus sp. BH72
NCBI taxonomy Id: 62928
Other names: A. sp. BH72
Server load: low (20%) [HD]
STRING is a Core Data Resource as designated by Global Biodata Coalition and ELIXIR.