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
hisZPossible Histidyl-tRNA synthetase; Required for the first step of histidine biosynthesis. May allow the feedback regulation of ATP phosphoribosyltransferase activity by histidine (By similarity). (383 aa)    
Predicted Functional Partners:
hisG
Possible ATP phosphoribosyltransferase; Catalyzes the condensation of ATP and 5-phosphoribose 1- diphosphate to form N'-(5'-phosphoribosyl)-ATP (PR-ATP). Has a crucial role in the pathway because the rate of histidine biosynthesis seems to be controlled primarily by regulation of HisG enzymatic activity. Belongs to the ATP phosphoribosyltransferase family. Short subfamily.
 
 0.984
hisI
Phosphoribosyl-AMP cyclohydrolase; Alternative locus ID: PMED4_06271; In the C-terminal section; belongs to the PRA-PH family.
 
 
 0.963
kprS
Ribose-phosphate pyrophosphokinase; Involved in the biosynthesis of the central metabolite phospho-alpha-D-ribosyl-1-pyrophosphate (PRPP) via the transfer of pyrophosphoryl group from ATP to 1-hydroxyl of ribose-5-phosphate (Rib- 5-P); Belongs to the ribose-phosphate pyrophosphokinase family. Class I subfamily.
  
 
 0.816
PMM0899
Possible myo-inositol-1(or 4)-monophosphatase; Alternative locus ID: PMED4_10101; Belongs to the inositol monophosphatase superfamily.
  
    0.779
petF
Ferredoxin, petF-like protein; Alternative locus ID: PMED4_10091.
  
    0.778
htpG
Heat shock protein HtpG; Molecular chaperone. Has ATPase activity.
 
 
 0.745
aspS
Aspartyl-tRNA synthetase; Aspartyl-tRNA synthetase with relaxed tRNA specificity since it is able to aspartylate not only its cognate tRNA(Asp) but also tRNA(Asn). Reaction proceeds in two steps: L-aspartate is first activated by ATP to form Asp-AMP and then transferred to the acceptor end of tRNA(Asp/Asn); Belongs to the class-II aminoacyl-tRNA synthetase family. Type 1 subfamily.
  
  
 0.660
guaA
Glutamine amidotransferase class-I:GMP synthase; Catalyzes the synthesis of GMP from XMP.
  
  
 0.610
rpl28,
50S ribosomal protein L28; Alternative locus ID: PMED4_10131; Belongs to the bacterial ribosomal protein bL28 family.
  
  
 0.579
pheT
Phenylalanyl-tRNA synthetase beta chain; Putative assignment; Alternative locus ID: PMED4_09811; Belongs to the phenylalanyl-tRNA synthetase beta subunit family. Type 1 subfamily.
  
  
 0.558
Your Current Organism:
Prochlorococcus marinus pastoris
NCBI taxonomy Id: 59919
Other names: P. marinus subsp. pastoris str. CCMP1986, Prochlorococcus marinus MED4, Prochlorococcus marinus subsp. pastoris str. CCMP1378, Prochlorococcus marinus subsp. pastoris str. CCMP1986, Prochlorococcus sp. CCMP1378, Prochlorococcus sp. MED4
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