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
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[Homology]
Score
pncB1Nicotinic acid phosphoribosyltransferase PncB1; Involved in the Preiss-Handler pathway, which is a recycling route that permits the salvage of free nicotinamide (NM) and nicotinic acid (Na) involved in the NAD biosynthesis. Catalyzes the synthesis of beta-nicotinate D-ribonucleotide from nicotinate and 5-phospho-D-ribose 1-phosphate at the expense of ATP. It is not able to use nicotinamide. PncB1 contributes to basal NAD level. (448 aa)    
Predicted Functional Partners:
pncA
Pyrazinamidase/nicotinamidase PncA (PZase); Catalyzes the deamidation of nicotinamide (NAM) into nicotinate. Likely functions in the cyclical salvage pathway for production of NAD from nicotinamide (By similarity). Belongs to the isochorismatase family.
 
 0.994
nadC
Probable nicotinate-nucleotide pyrophosphatase NadC; Involved in the catabolism of quinolinic acid (QA). Belongs to the NadC/ModD family.
   
 0.993
nadD
Probable nicotinate-nucleotide adenylyltransferase; Catalyzes the reversible adenylation of nicotinate mononucleotide (NaMN) to nicotinic acid adenine dinucleotide (NaAD).
  
 
 0.979
cinA
Rv1901, (MTCY180.17c), len: 430 aa. Probable cinA-like protein, strong similarity to competence damage proteins CinA of Bacillus subtilis and S. pneumoniae. FASTA results: Q55760 hypothetical 44.7 kDa protein (416 aa) opt: 755, E(): 0, (36.0% identity in 433 aa overlap).
  
 
 0.977
nudC
NADH pyrophosphatase; Rv3199c, (MTV014.43)c, len: 313 aa. Probable nudC,NADH pyrophosphatase, similar in particular to Q9CXN4|4933433B15RIK from Mus musculus (Mouse) (356 aa),FASTA scores: opt: 493, E(): 7.4e-24, (39.65% identity in 232 aa overlap); Q9ABG1|CC0266 mutt/NUDIX family protein from Caulobacter crescentus (313 aa), FASTA scores: opt: 479, E(): 5.1e-23, (38.3% identity in 222 aa overlap); O86062|NUDC_PSEAE|NUDC|PA1823 NADH pyrophosphatase from Pseudomonas aeruginosa (278 aa), FASTA scores: opt: 371,2 E(): 3e-16, (43.15% identity in 153 aa overlap); Q9RV62|NUDC_DEIRA|NUDC|DR11 [...]
    
 0.961
nadR
Possible transcriptional regulatory protein NadR (probably AsnC-family); Rv0212c, (MTCY08D5.07c), len: 323 aa. Possible nadR (alternate gene name: nadI), transcriptional regulator,similar to others e.g. NADR_ECOLI|P27278 transcriptional regulator from Escherichia coli (410 aa), FASTA scores: opt: 377, E (): 1e-17, (31.1% identity in 347 aa overlap). Contains PS00017 ATP/GTP-binding site motif A (P-loop).
    
 0.948
pncB2
Nicotinic acid phosphoribosyltransferase PncB2; Involved in the Preiss-Handler pathway, which is a recycling route that permits the salvage of free nicotinamide (NM) and nicotinic acid (Na) involved in the NAD biosynthesis. Catalyzes the synthesis of beta-nicotinate D-ribonucleotide from nicotinate and 5-phospho-D-ribose 1-phosphate at the expense of ATP. It is not able to use nicotinamide. PncB2 appears to be responsible for the increased salvage synthesis of NAD during infection of host tissues; Belongs to the NAPRTase family.
  
 
0.926
deoD
Probable purine nucleoside phosphorylase DeoD (inosine phosphorylase) (PNP); The purine nucleoside phosphorylases catalyze the phosphorolytic breakdown of the N-glycosidic bond in the beta- (deoxy)ribonucleoside molecules, with the formation of the corresponding free purine bases and pentose-1-phosphate. Cleaves guanosine, inosine, 2'-deoxyguanosine and 2'-deoxyinosine.
  
 
 0.908
nadE
Glutamine-dependent NAD(+) synthetase NadE (NAD(+) synthase [glutamine-hydrolysing]); Catalyzes the ATP-dependent amidation of deamido-NAD to form NAD. Uses L-glutamine as a nitrogen source. In vitro, can also use ammonia with comparable specific activity.
  
  
 0.878
nadB
Probable L-aspartate oxidase NadB; Catalyzes the oxidation of L-aspartate to iminoaspartate.
  
  
 0.859
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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