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
cobSCobalamin (5'-phosphate) synthase (cobS); Joins adenosylcobinamide-GDP and alpha-ribazole to generate adenosylcobalamin (Ado-cobalamin). Also synthesizes adenosylcobalamin 5'-phosphate from adenosylcobinamide-GDP and alpha-ribazole 5'- phosphate; Belongs to the CobS family. (258 aa)    
Predicted Functional Partners:
cobY
Conserved hypothetical protein; Guanylyltransferase that catalyzes the synthesis of adenosylcobinamide-GDP (AdoCbi-GDP) from adenosylcobinamide-phosphate (AdoCbi-P) and GTP. Is involved in adenosylcobalamin biosynthesis. Binds one GTP per dimer. Cannot use other NTPs or GDP. Does not display AdoCbi kinase activity. Is also able to catalyze the condensation of 2- phospho-L-lactate (LP) with GTP in vitro to form PPi and (2S)-lactyl-2- diphospho-5'-guanosine (LPPG), but is much less efficient than CofC, the presumed enzyme catalyzing this reaction in vivo.
 
  
 0.994
MJ_1598
Conserved hypothetical protein; Similar to GP:1652098 percent identity: 35.67; identified by sequence similarity; putative; Belongs to the UPF0284 family.
 
  
 0.980
cbiH
Cobalamin biosynthesis precorrin-3 methylase (cbiH); Methyltransferase that likely catalyzes the ring contraction and methylation of C-17 in cobalt-factor III to form cobalt-factor IV. May also convert cobalt-precorrin-3 to cobalt-precorrin-4 (By similarity).
  
  
 0.961
cbiJ
Cobalamin biosynthesis protein (cbiJ); Catalyzes the reduction of the macrocycle of cobalt- precorrin-6A to cobalt-precorrin-6B.
  
  
 0.909
cbiX
Conserved hypothetical protein; Catalyzes the insertion of Co(2+) into sirohydrochlorin as part of the anaerobic pathway to cobalamin biosynthesis. 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 the insertion of Ni(2+) into sirohydrochlorin to yield Ni- sirohydrochlorin.
     
 0.894
cobD
Cobalamin biosynthesis protein B (cbiB); Converts cobyric acid to cobinamide by the addition of aminopropanol on the F carboxylic group.
 
  
 0.888
MJ_0908
Cobalamin biosynthesis protein (cobN); Similar to GB:M62866 SP:P29929 PID:151154 percent identity: 37.24; identified by sequence similarity; putative; Belongs to the Mg-chelatase subunit H family.
     
 0.887
cobQ
Cobyric acid synthase (cbiP); Catalyzes amidations at positions B, D, E, and G on adenosylcobyrinic A,C-diamide. NH(2) groups are provided by glutamine, and one molecule of ATP is hydrogenolyzed for each amidation (By similarity); Belongs to the CobB/CobQ family. CobQ subfamily.
 
  
 0.884
cbiA
Cobyrinic acid a,c-diamide synthase (cbiA); Catalyzes the ATP-dependent amidation of the two carboxylate groups at positions a and c of cobyrinate, using either L-glutamine or ammonia as the nitrogen source. 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 the ATP- dependent amidation of the two carboxylate groups at positions a and c of Ni-sirohydrochlorin, using L-glutamine or ammonia as the nitrogen source.
 
  
 0.861
cbiL
Cobalamin biosynthesis precorrin-2 methyltransferase (cbiL); Methylates cobalt-precorrin-2 at the C-20 position to produce cobalt-precorrin-3A in the anaerobic cobalamin biosynthesis pathway.
  
  
 0.856
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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