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
chp2Possible exported protein; Involved in the final steps of polyacyltrehalose (PAT) biosynthesis. Catalyzes the transfer of three mycolipenoyl groups onto diacyltrehalose (DAT) to form PAT. (359 aa)    
Predicted Functional Partners:
mmpL10
Probable conserved transmembrane transport protein MmpL10; Required for the biosynthesis of polyacyltrehalose (PAT) and the transport of diacyltrehalose (DAT) and possibly PAT to the cell surface.
  
  
 0.850
fadD21
Probable fatty-acid-AMP ligase FadD21 (fatty-acid-AMP synthetase) (fatty-acid-AMP synthase); Rv1185c, (MTV005.21c), len: 578 aa. Probable fadD21,fatty-acid-AMP synthetase, highly similar to several from Mycobacteria e.g. NP_301895.1|NC_002677 possible acyl-CoA synthase from Mycobacterium leprae (579 aa); P71495|U75685 acyl-CoA synthase from Mycobacterium bovis (582 aa), FASTA scores: opt: 2388, E(): 0, (61.8% identity in 579 aa overlap); etc. Seems to belong to the ATP-dependent AMP-binding enzyme family. Nucleotide position 1327402 in the genome sequence has been corrected, T:C result [...]
  
  
 0.843
chp1
Conserved hypothetical protein; Involved in the final steps of the cell wall sulfolipid-1 (SL-1) biosynthesis. Catalyzes two successive acylations of the precursor 2-palmitoyl-3-(C43)-phthioceranyl-alpha, alpha'-D-trehalose- 2'-sulfate (SL1278) to yield the tetraacylated sulfolipid SL-1.
   
  
0.783
papA3
Probable conserved polyketide synthase associated protein PapA3; Involved in the biosynthesis of polyacyltrehalose (PAT) which could have a role in anchoring the bacterial capsule. In vitro catalyzes the sequential transfer of two palmitoyl groups onto a single glucose residue of trehalose generating the diacylated product 2,3- diacyltrehalose (trehalose dipalmitate). Although palmitoyl-CoA (PCoA) seems to be the physiological acyl donor, PapA3 can also use docosanoyl (22-carbon saturated fatty acid) coenzyme A as acyl donor.
  
 
 0.726
PE4
Rv0160c, (MTV032.03c), len: 502 aa. PE4, Member of the Mycobacterium tuberculosis PE family (see citation below), similar to many other PE proteins e.g. Z92770|MTCI5_26c from Mycobacterium tuberculosis (525 aa),FASTA scores: opt: 816, E(): 0, (41.4% identity in 367 aa overlap); C-terminal region of O06801|RV1768|MTCY28.34 from Mycobacterium tuberculosis (618 aa), FASTA scores: opt: 417, E(): 6.7e-18, (53.5% identity in 142 aa overlap). Also highly similar to downstream ORF MTV032_2.
      
 0.549
pks4
Probable polyketide beta-ketoacyl synthase Pks4; Polyketide synthase involved in the biosynthesis of methyl- branched fatty acids such as mycolipanoic, mycolipenic (phthienoic) and mycolipodienoic acids required for the synthesis of a major class of polyacylated trehaloses. Catalyzes the elongation of CoA esters of long-chain fatty acids by incorporation of three methylmalonyl (but not malonyl) residues, to form trimethyl-branched fatty-acids.
  
  
 0.545
pks3
Rv1180, (MTV005.16), len: 488 aa. Probable polyketide beta-ketoacyl synthase, equivalent to a predicted homologous protein from Mycobacterium smegmatis (see citation below), and similar to the N-terminus of many polyketide synthases e.g. MCAS_MYCBO|Q02251 mycocerosic acid synthase from Mycobacterium bovis (2110 aa), FASTA scores: opt: 2115, E(): 0, (66.5% identity in 472 aa overlap). Also similar to, and same length as P96284|Z83858|MTCY24G1.02 M. tuberculosis (496 aa), FASTA scores: opt: 1424, E(): 0, (50.9% identity in 444 aa overlap). Contains possible signal sequence and PS00013 Pr [...]
   
  
 0.542
lipR
Probable acetyl-hydrolase/esterase LipR; Required for maintaining the appropriate mycolic acid composition and permeability of the envelope on its exposure to acidic pH.
   
  
 0.542
mbtJ
Rv2385, (MTCY253.36c), len: 306 aa. Putative mbtJ,acetyl hydrolase (see citations below), showing some similarity with various hydrolases including acetyl hydrolases e.g. Q9ZBM4|MLCB1450.08|ML0314 putative hydrolase/esterase from Mycobacterium leprae (335 aa),FASTA scores: opt: 449, E(): 6.7e-21, (33.85% identity in 313 aa overlap); AAK47950|MT3591 Esterase from M. tuberculosis strain CDC1551 (327 aa), FASTA scores: opt: 469, E(): 3.6e-22, (35% identity in 283 aa overlap); Q9X8J4|SCE9.22 putative esterase from Streptomyces coelicolor (266 aa), FASTA scores: opt: 430,E(): 8.5e-20,(38% i [...]
      
 0.537
pks2
Polyketide synthase Pks2; Catalyzes the synthesis of the hepta- and octamethyl phthioceranic acids and/or hydroxyphthioceranic acids that are the major acyl constituents of sulfolipids.
  
  
 0.532
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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