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
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[Homology]
Score
cofFRibosomal protein S6 modification protein 2 (rimK); Catalyzes the ATP-dependent addition of one alpha-linked L- glutamate molecule to coenzyme gamma-F420-2, producing alpha-F420-3, the major form of coenzyme F420 found in M.jannaschii. Thus, caps the gamma-polyglutamate tail of coenzyme F420 with a terminal alpha-linked glutamate. Prefers ATP to other purine nucleotide triphosphates; GTP gives about 25% of the activity observed with ATP. Cannot catalyze the addition of the following amino acids or analogs: D-glutamate, beta- glutamate, L-aspartate, L-glutamine, L-alpha-aminoadipate, or [...] (290 aa)    
Predicted Functional Partners:
cofE
Conserved hypothetical protein; Catalyzes the GTP-dependent successive addition of two L- glutamates to the L-lactyl phosphodiester of 7,8-didemethyl-8-hydroxy- 5-deazariboflavin (F420-0) to form coenzyme F420-0-glutamyl-glutamate (F420-2), with a gamma-linkage between the two glutamates. Cannot use F420-2 as substrate to add more glutamates. Exhibits maximum activity with GTP, compared with UTP (66%) and dGTP (25%); with ATP, only F420-1 is observed as the product; CTP and TTP support no activity. Belongs to the CofE family.
    
  0.902
cofD
Conserved hypothetical protein; Catalyzes the transfer of the phosphoenolpyruvate moiety from enoylpyruvoyl-2-diphospho-5'-guanosine (EPPG) to 7,8-didemethyl-8- hydroxy-5-deazariboflavin (FO) with the formation of dehydro coenzyme F420-0 and GMP.
     
 0.878
cofC
Conserved hypothetical protein; Guanylyltransferase that catalyzes the activation of phosphoenolpyruvate (PEP) as enolpyruvoyl-2-diphospho-5'-guanosine, via the condensation of PEP with GTP. It is involved in the biosynthesis of coenzyme F420, a hydride carrier cofactor. Is able to utilize other purine nucleotides including ATP, dGTP and ITP as cosubstrates in place of GTP but with a lower activity. Does not display lactate kinase activity.
      
 0.706
hisS
histidyl-tRNA synthetase (hisS); Similar to SP:P30053 percent identity: 35.44; identified by sequence similarity; putative; Belongs to the class-II aminoacyl-tRNA synthetase family.
       0.662
dacZ
Conserved hypothetical protein; Diadenylate cyclase that catalyzes the condensation of 2 ATP molecules into cyclic di-AMP (c-di-AMP). c-di-AMP is a second messenger for intracellular signal transduction involved in the control of important regulatory processes such as osmoregulation (By similarity).
 
     0.609
ths
Thermosome (ths); Molecular chaperone; binds unfolded polypeptides in vitro, and has a weak ATPase activity; Belongs to the TCP-1 chaperonin family.
     
 0.492
mptN
Ribosomal protein S6 modification protein 1 (rimK); Catalyzes the ATP or GTP-dependent addition of one L- glutamate molecule to tetrahydromethanopterin, producing tetrahydrosarcinapterin.
  
   
0.457
hacA
3-isopropylmalate dehydratase (leuC); Hydro-lyase with broad substrate specificity for cis- unsaturated tricarboxylic acids. Catalyzes both the reversible dehydration of (R)-homocitrate ((R)-2-hydroxybutane-1,2,4- tricarboxylate) to produce cis-homoaconitate ((Z)-but-1-ene-1,2,4- tricarboxylate), and its hydration to homoisocitrate ((1R,2S)-1- hydroxybutane-1,2,4-tricarboxylate). Is also able to hydrate the analogous longer chain substrates cis-homo(2)-aconitate, cis-homo(3)- aconitate, and even the non-physiological cis-homo(4)-aconitate with similar efficiency. These reactions are pa [...]
     
 0.447
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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