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
queF-LGTP cyclohydrolase I; Is responsible for the final step in the biosynthesis of archaeosine, a modified nucleoside present in the dihydrouridine loop (D-loop) of archaeal tRNA. Catalyzes the conversion of 7-cyano-7-deazaguanine (preQ0)-modified tRNA to archaeosine-tRNA, transforming a nitrile group to a formamidine group. Can use neither glutamine nor asparagine as amino donor in vitro, is only able to utilize free ammonium. However, the enzyme might function in vivo with a partner that serves to generate ammonium; Belongs to the archaeosine synthase type 2 family. (109 aa)    
Predicted Functional Partners:
queE
Radical SAM domain protein; Catalyzes the complex heterocyclic radical-mediated conversion of 6-carboxy-5,6,7,8-tetrahydropterin (CPH4) to 7-carboxy-7- deazaguanine (CDG), a step common to the biosynthetic pathways of all 7-deazapurine-containing compounds.
  
  
 0.955
Pcal_1063
KEGG: pai:PAE2137 hypothetical protein.
  
  
 0.925
queC
ExsB family protein; Catalyzes the ATP-dependent conversion of 7-carboxy-7- deazaguanine (CDG) to 7-cyano-7-deazaguanine (preQ(0)). Belongs to the QueC family.
  
  
 0.870
Pcal_1212
TIGRFAM: conserved hypothetical integral membrane protein; PFAM: protein of unknown function DUF165; KEGG: pai:PAE0573 hypothetical protein.
  
  
 0.842
guaA
GMP synthase (glutamine-hydrolyzing); Catalyzes the synthesis of GMP from XMP.
     
 0.783
thiI
Thiamine biosynthesis/tRNA modification protein ThiI; Catalyzes the ATP-dependent transfer of a sulfur to tRNA to produce 4-thiouridine in position 8 of tRNAs, which functions as a near-UV photosensor. Also catalyzes the transfer of sulfur to the sulfur carrier protein ThiS, forming ThiS-thiocarboxylate. This is a step in the synthesis of thiazole, in the thiamine biosynthesis pathway. The sulfur is donated as persulfide by IscS.
     
 0.635
Pcal_0222
PFAM: alpha amylase, catalytic region; SMART: alpha amylase, catalytic sub domain; KEGG: pai:PAE0318 hypothetical protein.
       0.557
Pcal_0512
PFAM: GTP cyclohydrolase I; KEGG: pai:PAE1588 GTP cyclohydrolase I.
     
 0.553
tgtA
Archaeosine tRNA-ribosyltransferase; Exchanges the guanine residue with 7-cyano-7-deazaguanine (preQ0) at position 15 in the dihydrouridine loop (D-loop) of archaeal tRNAs; Belongs to the archaeosine tRNA-ribosyltransferase family.
     
 0.553
Pcal_0224
Dihydroorotase; PFAM: amidohydrolase; KEGG: pai:PAE0322 dihydroorotase (pyrC).
     
 0.531
Your Current Organism:
Pyrobaculum calidifontis
NCBI taxonomy Id: 410359
Other names: P. calidifontis JCM 11548, Pyrobaculum calidifontis JCM 11548, Pyrobaculum calidifontis VA1, Pyrobaculum calidifontis str. JCM 11548, Pyrobaculum calidifontis strain JCM 11548
Server load: medium (50%) [HD]
STRING is a Core Data Resource as designated by Global Biodata Coalition and ELIXIR.