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purA purA purB purB guaB2 guaB2 hpt hpt purH purH guaB1 guaB1 guaB3 guaB3 guaA guaA Rv0356c Rv0356c pyrB pyrB argG argG
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splice isoforms or post-translational modifications are collapsed, i.e. each node represents all the proteins produced by a single, protein-coding gene locus.
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query proteins and first shell of interactors
white nodes:
second shell of interactors
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proteins of unknown 3D structure
filled nodes:
a 3D structure is known or predicted
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Known Interactions
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experimentally determined
Predicted Interactions
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gene fusions
gene co-occurrence
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textmining
co-expression
protein homology
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purAProbable adenylosuccinate synthetase PurA (imp--aspartate ligase) (ADSS) (ampsase); Plays an important role in the de novo pathway of purine nucleotide biosynthesis. Catalyzes the first committed step in the biosynthesis of AMP from IMP; Belongs to the adenylosuccinate synthetase family. (432 aa)    
Predicted Functional Partners:
purB
Rv0777, (MTCY369.21b), len: 472 aa. Probable purB,adenylosuccinate lyase, equivalent (but shorter 15 aa) to MLCB5.13|Z95151|g2076607|PURB adenylosuccinate lyase from Mycobacterium leprae (487 aa), FASTA scores: opt: 2640,E(): 0, (86.7% identity in 472 aa overlap). More similar to eukaryotic adenylosuccinate lyases than to prokaryotic adenylosuccinate lyases e.g. P54822|PUR8_MOUSE adenylosuccinate lyase from Mus musculus (484 aa), FASTA scores: opt: 762, E(): 0, (32.4% identity in 445 aa overlap); CAB99134.1|AL390188 putative adenylosuccino lyase (fragment) from Streptomyces coelicolor [...]
 
 0.998
guaB2
Inosine-5'-monophosphate dehydrogenase; Catalyzes the conversion of inosine 5'-phosphate (IMP) to xanthosine 5'-phosphate (XMP), the first committed and rate-limiting step in the de novo synthesis of guanine nucleotides, and therefore plays an important role in the regulation of cell growth. Does not catalyze the reverse reaction, i.e. the conversion of XMP to IMP. Appears to be essential for the optimal growth of M.tuberculosis. Belongs to the IMPDH/GMPR family.
 
 
 0.993
hpt
Rv3624c, (MTCY15C10.28), len: 216 aa. Hpt (alternate gene name: hprT), hypoxanthine-guanine phosphoribosyltransferase (but seems to have a 35 aa extension at N-terminus), equivalent to other mycobacterial hypoxanthine-guanine phosphoribosyltransferases e.g. P96794 from Mycobacterium avium (203 aa), FASTA scores: opt: 1136,E(): 1.2e-65, (88.5% identity in 200 aa overlap); and O69537|HPT|ML0214 from Mycobacterium leprae (213 aa), FASTA scores: opt: 1115, E(): 2.8e-64, (81.6% identity in 212 aa overlap). Also similar to others e.g. Q9X8I5|SCE9.12c from Streptomyces coelicolor (187 aa), FA [...]
  
 
 0.990
purH
Phosphoribosylaminoimidazolecarboxamide formyltransferase; Rv0957, (MTCY10D7.17c), len: 523 aa. Probable purH,bifunctional purine biosynthesis protein including 5'-phosphoribosyl-5-aminoimidazole-4-carboxamide formyltransferase and inosine-monophosphate (imp) cyclohydrolase, equivalent to AL035500|MLCL373_8 putative phosphoribosylaminoimidazolecarboxamide formyltransferase from Mycobacterium leprae (527 aa), FASTA score: (88.1% identity in 520 aa overlap); and AF05727.1|AF191543_2|AF191543|PurH from Mycobacterium avium subsp. paratuberculosis (527 aa). Also highly similar to others e.g [...]
  
 0.988
guaB1
Probable inosine-5'-monophosphate dehydrogenase GuaB1(imp dehydrogenase) (IMPDH) (IMPD); Has no inosine-5'-monophosphate dehydrogenase activity. Belongs to the IMPDH/GMPR family.
 
 
 0.981
guaB3
Uncharacterized oxidoreductase Rv3410c; Has no inosine-5'-monophosphate dehydrogenase activity. Belongs to the IMPDH/GMPR family.
 
 
 0.977
guaA
Probable GMP synthase [glutamine-hydrolyzing] GuaA (glutamine amidotransferase) (GMP synthetase); Catalyzes the synthesis of GMP from XMP.
 
  
 0.961
Rv0356c
Conserved protein; Rv0356c, (MTCY13E10.18c), len: 214 aa. Conserved protein, equivalent to AL023514|MLCB4_12 conserved hypothetical protein from Mycobacterium leprae (218 aa),FASTA scores: opt: 1067, E(): 0, (73.4% identity in 214 aa overlap). A core mycobacterial gene; conserved in mycobacterial strains (See Marmiesse et al., 2004).
  
    0.944
pyrB
Rv1380, (MTCY02B12.14), len: 319 aa. Probable pyrB,aspartate carbamoyltransferase, similar to many e.g. PYRB_BACCL|P41008 aspartate carbamoyltransferase from Bacillus caldolyticus (308 aa), FASTA scores, opt: 639,E(): 7.3e-36, (39.5% identity in 311 aa overlap). Contains PS00097 Aspartate and ornithine carbamoyltransferases signature. Belongs to the ATCases/OTCases family.
 
 
 0.943
argG
Rv1658, (MTCY06H11.23), len: 398 aa. Probable argG,Argininosuccinate synthase, similar to ASSY_STRCL|P50986 argininosuccinate synthase from Streptomyces clavuligerus (397 aa), FASTA scores: opt: 1873, E(): 0, (67.8% identity in 397 aa overlap); contains PS00564 Argininosuccinate synthase signature 1, PS00565 Argininosuccinate synthase signature 2. Belongs to the argininosuccinate synthase family.
  
 
 0.940
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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