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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
MCA0239Putative nitrogen fixation protein nifQ; Identified by similarity to SP:P11068; match to protein family HMM PF04891. (197 aa)    
Predicted Functional Partners:
MCA0235
Nitrogenase molybdenum-iron protein NifX; Identified by similarity to SP:P19078; match to protein family HMM PF02579.
 
  
 0.931
csdB
Selenocysteine lyase; Catalyzes the removal of elemental sulfur and selenium atoms from L-cysteine, L-cystine, L-selenocysteine, and L-selenocystine to produce L-alanine.
  
 
 0.927
MCA0238
Ferredoxin, 4Fe-4S; Identified by similarity to SP:P46036; match to protein family HMM PF00037.
 
  
 0.918
MCA0236
Conserved hypothetical protein; Identified by similarity to GP:12620458; match to protein family HMM PF03270.
 
    0.917
MCA0232
Ferredoxin, 2Fe-2S; Identified by similarity to SP:P37097; match to protein family HMM PF00111.
 
 0.863
nifW
Nitrogen fixation protein NifW; May protect the nitrogenase Fe-Mo protein from oxidative damage; Belongs to the NifW family.
 
  
 0.860
nifS
Cysteine desulfurase; Identified by similarity to SP:Q43884; match to protein family HMM PF00266.
  
 0.852
nifN
Nitrogenase molybdenum-iron cofactor biosynthesis protein NifN; Identified by similarity to SP:P26507; match to protein family HMM PF00148; match to protein family HMM TIGR01285; Belongs to the NifD/NifK/NifE/NifN family.
 
  
 0.852
iscS
Cysteine desulfurase; Master enzyme that delivers sulfur to a number of partners involved in Fe-S cluster assembly, tRNA modification or cofactor biosynthesis. Catalyzes the removal of elemental sulfur atoms from cysteine to produce alanine. Functions as a sulfur delivery protein for Fe-S cluster synthesis onto IscU, an Fe-S scaffold assembly protein, as well as other S acceptor proteins; Belongs to the class-V pyridoxal-phosphate-dependent aminotransferase family. NifS/IscS subfamily.
  
 0.852
MCA2884
Cysteine desulfurase; Identified by similarity to SP:Q43884; match to protein family HMM PF00266.
  
 0.852
Your Current Organism:
Methylococcus capsulatus
NCBI taxonomy Id: 243233
Other names: M. capsulatus str. Bath, Methylococcus capsulatus ATCC 33009, Methylococcus capsulatus Bath, Methylococcus capsulatus MC, Methylococcus capsulatus NCIB 11132, Methylococcus capsulatus str. Bath
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