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:
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[Homology]
Score
hisEPhosphoribosyl-AMP pyrophosphatase HisE; Rv2122c, (MTCY261.18), len: 93 aa. HisE (alternate gene name: irg1), phosphoribosyl-AMP cyclohydrolase (see citation below), similar to many. Note that previously misnamed hisI. (93 aa)    
Predicted Functional Partners:
hisG
ATP phosphoribosyltransferase HisG; 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 (By similarity).
 
 
 0.999
hisI
Probable phosphoribosyl-AMP 1,6 cyclohydrolase HisI; Catalyzes the hydrolysis of the adenine ring of phosphoribosyl-AMP.
 
 
 0.992
hisB
Rv1601, (MTCY336.03c), len: 210 aa. Probable hisB,imidazole glycerol-phosphate dehydratase. Similar to many e.g. HIS7_STRCO|P16247 from Streptomyces coelicolor (197 aa),FASTA results: opt: 763, E(): 0, (57.4% identity in 202 aa overlap). Belongs to the imidazoleglycerol-phosphate dehydratase family.
 
  
 0.981
hisD
Probable histidinol dehydrogenase HisD (HDH); Catalyzes the sequential NAD-dependent oxidations of L- histidinol to L-histidinaldehyde and then to L-histidine.
 
  
 0.965
hisF
Probable cyclase HisF; 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 (By similarity).
 
  
 0.965
hisA
Probable phosphoribosylformimino-5-aminoimidazole carboxamide ribotide isomerase HisA; Involved in both the histidine and tryptophan biosynthetic pathways; Belongs to the HisA/HisF family.
 
  
 0.963
hisH
Probable amidotransferase HisH; 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 (By similarity).
 
  
 0.943
rpmE
50S ribosomal protein L31 RpmE; Binds the 23S rRNA.
  
  
 0.894
hisC1
Rv1600, (MTCY336.04c), len: 380 aa. Probable hisC1,histidinol-phosphate aminotransferase O06591. Similar to many e.g. HIS8_STRCO|P16246 from Streptomyces coelicolor (369 aa), FASTA results: opt: 1353, E(): 0, (59.0% identity in 356 aa overlap). Some similarity to other Mycobacterium tuberculosis aminotransferases e.g. Rv3772|MTCY13D12.06,FASTA results: E(): 7.4e-25, (33.7% identity in 365 aa overlap). Contains aminotransferases class-II pyridoxal-phosphate attachment site (PS00599). Belongs to class-II of pyridoxal-phosphate-dependent aminotransferases. Note that previously known as hisC.
 
  
 0.858
Rv3403c
Hypothetical protein; Rv3403c, (MTCY78.25), len: 533 aa. Hypothetical unknown protein, but some weak similarity to Q9KJP2 hypothetical 54.9 KDA protein from Myxococcus xanthus (504 aa), FASTA scores: opt: 157, E(): 0.011, (24.1% identity in 548 aa overlap).
      
 0.803
Your Current Organism:
Mycobacterium tuberculosis H37Rv
NCBI taxonomy Id: 83332
Other names: M. tuberculosis H37Rv, Mycobacterium sp. H37Rv, Mycobacterium tuberculosis str. H37Rv, Mycobacterium tuberculosis strain H37Rv
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