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
hisFImidazole glycerol phosphate synthase subunit HisF (cyclase); IGPS catalyzes the conversion of PRFAR and glutamine to IGP, AICAR and glutamate. The HisF subunit catalyzes the cyclization activity that produces IGP and AICAR from PRFAR using the ammonia provided by the HisH subunit. (257 aa)    
Predicted Functional Partners:
hisI
COG139 Phosphoribosyl-AMP cyclohydrolase [Amino acid transport and metabolism]; In the N-terminal section; belongs to the PRA-CH family.
  
 0.999
hisH
Glutamine amidotransferase class-I; IGPS catalyzes the conversion of PRFAR and glutamine to IGP, AICAR and glutamate. The HisH subunit catalyzes the hydrolysis of glutamine to glutamate and ammonia as part of the synthesis of IGP and AICAR. The resulting ammonia molecule is channeled to the active site of HisF.
 0.999
hisB
COG131 Imidazoleglycerol-phosphate dehydratase [Amino acid transport and metabolism].
 
 
 0.998
hisA
COG106 Phosphoribosylformimino-5-aminoimidazole carboxamide ribonucleotide (ProFAR) isomerase [Amino acid transport and metabolism].
 
 
0.996
hisD
Histidinol dehydrogenase; Catalyzes the sequential NAD-dependent oxidations of L- histidinol to L-histidinaldehyde and then to L-histidine.
  
 0.996
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.
 
  
 0.986
purH
AICARFT/IMPCHase bienzyme:Methylglyoxal synthase-like domain; COG138 AICAR transformylase/IMP cyclohydrolase PurH (only IMP cyclohydrolase domain in Aful) [Nucleotide transport and metabolism].
  
 
 0.849
apt
Phosphoribosyl transferase; Catalyzes a salvage reaction resulting in the formation of AMP, that is energically less costly than de novo synthesis.
   
 
 0.820
ABM71424.1
Aminotransferases class-I; COG79 Histidinol-phosphate/aromatic aminotransferase and cobyric acid decarboxylase [Amino acid transport and metabolism].
 
  
 0.814
purB
Fumarate lyase:Adenylosuccinate lyase; COG15 Adenylosuccinate lyase [Nucleotide transport and metabolism]; Belongs to the lyase 1 family. Adenylosuccinate lyase subfamily.
    
  0.808
Your Current Organism:
Prochlorococcus marinus MIT9515
NCBI taxonomy Id: 167542
Other names: P. marinus str. MIT 9515, Prochlorococcus marinus str. MIT 9515
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