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
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Textmining
[Homology]
Score
aptAdenine phosphoribosyltransferase; Catalyzes a salvage reaction resulting in the formation of AMP, that is energically less costly than de novo synthesis. (223 aa)    
Predicted Functional Partners:
guaA
Probable GMP synthase [glutamine-hydrolyzing] GuaA (glutamine amidotransferase) (GMP synthetase); Catalyzes the synthesis of GMP from XMP.
  
 0.996
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 [...]
  
 0.993
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.
  
 
 0.991
iunH
Rv3393, (MTV004.51), len: 308 aa. Probable iunH,nucleoside hydrolase, similar to others e.g. Q9RXB2|DR0403 from Deinococcus radiodurans (314 aa), FASTA scores: opt: 497, E(): 6e-24, (34.3% identity in 312 aa overlap); Q27546|IUNH_CRIFA from Crithidia fasciculata (314 aa),FASTA scores: opt: 475, E(): 1.4e-22, (31.45% identity in 318 aa overlap); Q9CK67|IUNH from Pasteurella multocida (310 aa), FASTA scores: opt: 464, E(): 6.9e-22, (30.9% identity in 314 aa overlap); Q9A549|CC2615 from Caulobacter crescentus (323 aa), FASTA scores: opt: 464, E(): 7.2e-22,(37.85% identity in 280 aa overla [...]
    
 0.982
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 [...]
  
 0.979
gmk
Probable guanylate kinase Gmk; Essential for recycling GMP and indirectly, cGMP.
  
 
 0.975
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 [...]
 
 0.968
adoK
Adenosine kinase; Catalyzes the phosphorylation of adenosine to adenosine monophosphate (AMP). Can also catalyze the phosphorylation of the adenosine analog 2-methyladenosine (methyl-Ado) to methyl-AMP, the first step in the metabolism of this compound to an active form that displays antitubercular activity. Is not active on guanosine, inosine, deoxyadenosine, cytidine, uridine, or thymidine. Prefers dGTP and GTP to ATP as phosphate donors in vitro.
  
 0.963
adk
Adenylate kinase Adk (ATP-AMP transphosphorylase); Catalyzes the reversible transfer of the terminal phosphate group between ATP and AMP. Plays an important role in cellular energy homeostasis and in adenine nucleotide metabolism. Has a broad specificity for nucleoside triphosphates, being highly active with ATP or dATP as phosphate donors, and less active with GTP or UTP.
 
 
 0.961
upp
Uracil phosphoribosyltransferase; Catalyzes the conversion of uracil and 5-phospho-alpha-D- ribose 1-diphosphate (PRPP) to UMP and diphosphate.
  
  
 0.920
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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