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
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Gene Fusion
Cooccurrence
Coexpression
Experiments
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[Homology]
Score
nifBnifB protein (nifB); Involved in the biosynthesis of the iron-molybdenum cofactor (FeMo-co or M-cluster) found in the dinitrogenase enzyme of the nitrogenase complex in nitrogen-fixing microorganisms. NifB catalyzes the crucial step of radical SAM-dependent carbide insertion that occurs concomitant with the insertion of a 9th sulfur and the rearrangement/coupling of two [4Fe-4S] clusters into a [8Fe-9S-C] cluster, the precursor to the M-cluster. (300 aa)    
Predicted Functional Partners:
nifH
Nitrogenase iron protein (nifH); 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.
 
  
 0.948
MJ_0327
Hypothetical protein; Identified by GeneMark; putative; M. jannaschii predicted coding region MJ0327.
  
  
 0.908
nrpR
Conserved hypothetical protein; Transcriptional repressor of nitrogen fixation and assimilation genes. Binds to two tandem operators in the glnA and nif promoters, thereby blocking transcription of the genes. Belongs to the NrpR family.
      
 0.640
MJ_1558
Hypothetical protein; Identified by GeneMark; putative; M. jannaschii predicted coding region MJ1558; Belongs to the UPF0237 family.
       0.524
MJ_1092
Urease accesory protein (ureH); Efflux system for nickel and cobalt; Belongs to the NiCoT transporter (TC 2.A.52) family.
       0.507
MJ_0640
Conserved hypothetical protein; Similar to GP:1001832 percent identity: 33.81; identified by sequence similarity; putative.
       0.431
MJ_1374
Conserved hypothetical protein; Similar to GB:AE000666 percent identity: 42.73; identified by sequence similarity; putative.
  
  
 0.428
cfbD
Vanadium nitrogenase-associated protein N; Involved in the biosynthesis of the unique nickel-containing tetrapyrrole coenzyme F430, the prosthetic group of methyl-coenzyme M reductase (MCR), which plays a key role in methanogenesis and anaerobic methane oxidation. Catalyzes both the six-electron reduction of the tetrahydroporphyrin ring system and the gamma-lactamization of the c- acetamide side chain of Ni-sirohydrochlorin a,c-diamide to yield 15,17(3)-seco-F430-17(3)-acid (seco-F430), the last intermediate in the biosynthesis of the coenzyme F430; Belongs to the NifD/NifK/NifE/NifN family.
  
  
 0.407
Your Current Organism:
Methanocaldococcus jannaschii
NCBI taxonomy Id: 243232
Other names: M. jannaschii DSM 2661, Methanocaldococcus jannaschii DSM 2661, Methanocaldococcus jannaschii str. DSM 2661, Methanococcus jannaschii DSM 2661
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