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| | pks11 | Chalcone synthase Pks11; Involved in the biosynthesis of tri- and tetraketide alpha- pyrones. Pks11 catalyzes the extension of medium- and long-chain aliphatic acyl-CoA substrates by using malonyl-CoA as an extender molecule to synthesize polyketide products. (353 aa) |
| | pks17 | Rv1663, (MTCY275.02), len: 502 aa. Probable pks17,polyketide synthase, similar to other polyketide synthases e g. ERY2_SACER|Q03132 erythronolide synthase, modules 3 and 4 (3567 aa) from Saccharopolyspora erythraea (Streptomyces erythraeus), FASTA scores: opt: 1207, E(): 0,(43.9% identity in 531 aa overlap). Also similar to other Mycobacterium tuberculosis probable polyketide synthases e.g. pks7 and pks1. Note that the similarity extends into the upstream ORF Rv1662 (MTCY275.01) and this could be accounted for by a frameshift, although the sequence has been checked and no discrepancy w [...] (502 aa) |
| | pks8 | Rv1662, (MTCY275.01-MTCY06H11.27), len: 1602 aa. Probable pks8, polyketide synthase, similar to many polyketide synthases e.g. ERY2_SACER|Q03132 erythronolide synthase, modules 3 and 4 from Saccharopolyspora erythraea (Streptomyces erythraeus) (3567 aa), FASTA scores: opt: 3319, E(): 0, (45.8% identity in 1619 aa overlap). Also similar to other Mycobacterium tuberculosis probable polyketide synthases e.g. pks7 and pks12. Contains PS00606 Beta-ketoacyl synthases active site and PS01162 Quinone oxidoreductase/zeta-crystallin signature. Note that the similarity extends into the downstream [...] (1602 aa) |
| | pks7 | Rv1661, (MTCY06H11.26), len: 2126 aa. Probable pks7,polyketide synthase, similar to many e.g. ERY2_SACER|Q03132 erythronolide synthase, modules 3 and 4 (3567 aa), FASTA scores: E(): 0, (48.8% identity in 2131 aa overlap); also similar to Mycobacterium tuberculosis pks12. Contains PS00606 Beta-ketoacyl synthases active site, PS00012 Phosphopantetheine attachment site. (2126 aa) |
| | pks10 | Chalcone synthase Pks10; Could catalyze the elongation of hydroxybenzoyl-CoA as well as elongation of the aliphatic precursor involved in the synthesis of phthiocerol dimycocerosate (DIM); Belongs to the thiolase-like superfamily. Chalcone/stilbene synthases family. (353 aa) |
| | pks5 | Probable polyketide synthase Pks5; Polyketide synthase likely involved in the biosynthesis of a polymethyl-branched fatty acid (PMB-FA) that might only be produced during host infection. Is required for the full virulence of M.tuberculosis during host infection. (2108 aa) |
| | inhA | NADH-dependent enoyl-[acyl-carrier-protein] reductase InhA (NADH-dependent enoyl-ACP reductase); Enoyl-ACP reductase of the type II fatty acid syntase (FAS- II) system, which is involved in the biosynthesis of mycolic acids, a major component of mycobacterial cell walls. Catalyzes the NADH-dependent reduction of the double bond of 2-trans- enoyl-[acyl-carrier protein], an essential step in the fatty acid elongation cycle of the FAS-II pathway. Shows preference for long-chain fatty acyl thioester substrates (>C16), and can also use 2-trans-enoyl-CoAs as alternative substrates. The mycob [...] (269 aa) |
| | fabG1 | 3-oxoacyl-[acyl-carrier-protein] reductase FabG1; Catalyzes the NADPH-dependent reduction of beta-ketoacyl-ACP substrates to beta-hydroxyacyl-ACP products, the first reductive step in the elongation cycle of fatty acid biosynthesis. MabA preferentially metabolizes long-chain substrates (C8-C20) and has a poor affinity for the C4 substrate; Belongs to the short-chain dehydrogenases/reductases (SDR) family. (247 aa) |
| | ripB | Possible invasion protein; Peptidoglycan endopeptidase that cleaves the bond between D- glutamate and meso-diaminopimelate. Binds high-molecular weight peptidoglycan, but does not degrade it. Required for normal separation of daughter cells after cell division and cell wall integrity. Required for host cell invasion. (241 aa) |
| | ripA | Peptidoglycan hydrolase; Peptidoglycan endopeptidase that cleaves the bond between D- glutamate and meso-diaminopimelate. Binds and degrades high-molecular weight peptidoglycan from a number of Actinobacteria; activity is increased in the presence of RpfB and inhibited by PBP1A (ponA1). Required for normal separation of daughter cells after cell division and for cell wall integrity. Required for host cell invasion and intracellular survival in host macrophages. Belongs to the peptidase C40 family. (472 aa) |
| | Rv1433 | Possible conserved exported protein; Probable L,D-transpeptidase that may perform as-yet-unknown cross-linking reactions in M.tuberculosis. Is not able to generate 3->3 cross-links in peptidoglycan, using tetrapeptide stems as acyl donor substrates. May function in the anchoring of proteins to peptidoglycan. (271 aa) |
| | murI | Probable glutamate racemase MurI; Provides the (R)-glutamate required for cell wall biosynthesis. (271 aa) |
| | murA | Probable UDP-N-acetylglucosamine 1-carboxyvinyltransferase MurA; Cell wall formation. Adds enolpyruvyl to UDP-N- acetylglucosamine; Belongs to the EPSP synthase family. MurA subfamily. (418 aa) |
| | rfe | Decaprenyl-phosphate N-acetylglucosaminephosphotransferase; Involved in the biosynthesis of the disaccharide D-N- acetylglucosamine-L-rhamnose which plays an important role in the mycobacterial cell wall as a linker connecting arabinogalactan and peptidoglycan via a phosphodiester linkage. Catalyzes the transfer of the N-acetylglucosamine-1-phosphate (GlcNAc-1P) moiety from UDP-GlcNAc onto the carrier lipid decaprenyl phosphate (C50-P), yielding GlcNAc- pyrophosphoryl-decaprenyl (GlcNAc-PP-C50). (404 aa) |
| | Rv1288 | Conserved protein; Exhibits lipolytic activity with medium chain length esters as optimum substrates. In vitro, pNP-caprylate (C8) is the optimum substrate followed by pNP-capricate (C10). May modulate the cell wall lipids to favor the survival of bacteria under stress conditions. (456 aa) |
| | lipX | PE family protein. Possible lipase LipX; Rv1169c, (MTV005.05c), len: 100 aa. Possible lipX,lipase. Member of the Mycobacterium tuberculosis PE family of proteins (see Brennan & Delogu 2002), e.g. O05297|Z93777|MTCI364.07 (99 aa), FASTA scores: opt: 209,E(): 1.6e-15, (37.4% identity in 99 aa overlap). Also simlar to the N-terminus of P77909|U76006 esterase/lipase from Mycobacterium tuberculosis (437 aa), FASTA scores: opt: 193, E(): 4.4e-14, (37.2% identity in 94 aa overlap). Contains a helix-turn-helix motif from aa 88-109 (+2.76 SD). Predicted possible vaccine candidate (See Zvi et al [...] (100 aa) |
| | Rv3920c | Rv3920c, (MTV028.11c), len: 187 aa. Conserved protein, similar to jag protein, equivalent to Q9L7M2 hypothetical 20.1 KDA protein from Mycobacterium paratuberculosis (183 aa), FASTA scores: opt: 1004, E(): 7.3e-52, (85.05% identity in 187 aa overlap); and Q50204|ML2709 hypothetical protein similar to jag protein SPOIIIJ associated protein in bacillus subtilis from Mycobacterium leprae (193 aa), FASTA scores: opt: 871, E(): 4.4e-44, (73.05% identity in 193 aa overlap). Also similar to other bacterial proteins e.g. O54595|STH24.06|jag jag-like protein from Streptomyces coelicolor (170 aa [...] (187 aa) |
| | cwlM | Probable peptidoglycan hydrolase; Cell-wall hydrolase that hydrolyzes the amide bond between N- acetylmuramic acid and L-alanine in cell-wall glycopeptides. Is able to lyse whole mycobacteria, release peptidoglycan from the cell wall of M.luteus and M.smegmatis, and cleave N-acetylmuramoyl-L-alanyl-D- isoglutamine, releasing free N-acetylmuramic acid and dipeptide. (406 aa) |
| | mviN | Probable conserved transmembrane protein; Essential for cell growth and peptidoglycan synthesis. In the N-terminal section; belongs to the MurJ/MviN family. (1184 aa) |
| | fadD23 | Probable fatty-acid-AMP ligase FadD23 (fatty-acid-AMP synthetase) (fatty-acid-AMP synthase); Catalyzes the activation of long-chain fatty acids as acyl- coenzyme A (acyl-CoA), which are then transferred to the multifunctional polyketide synthase (PKS) type III for further chain extension (Probable). Involved in the biosynthesis of sulfolipid 1 (SL- 1); Belongs to the ATP-dependent AMP-binding enzyme family. (584 aa) |
| | 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. (2126 aa) |
| | papA1 | Conserved polyketide synthase associated protein PapA1; Catalyzes the acylation of trehalose-2-sulfate-2'-palmitate (SL659) by adding the (hydroxy)phthioceranoyl group at the 3'-position to yield the diacylated intermediate 2-palmitoyl-3-(C43)-phthioceranyl- alpha, alpha'-D-trehalose-2'-sulfate (SL1278) during the cell wall sulfolipid-1 (SL-1) biosynthesis; Belongs to the PapA acyltransferase family. (511 aa) |
| | mmpL8 | Conserved integral membrane transport protein MmpL8; Required for the biosynthesis and the transport across the inner membrane of sulfolipid-1 (SL-1), which is a major cell wall lipid of pathogenic mycobacteria. Could also transport SL1278 (2-palmitoyl-3- (C43)-phthioceranyl-alpha, alpha'-D-trehalose-2'-sulfate), which is the precursor of SL-1. Required for virulence. (1089 aa) |
| | sap | Probable conserved integral membrane protein; Required for the transport across the inner membrane of sulfolipid-1 (SL-1), which is a major cell wall lipid of pathogenic mycobacteria. Could also transport SL1278 (2-palmitoyl-3-(C43)- phthioceranyl-alpha, alpha'-D-trehalose-2'-sulfate), which is the precursor of SL-1. May potentiate SL-1 levels and confer specificity for sulfolipids over structurally similar glycolipids. (237 aa) |
| | papA2 | Possible conserved polyketide synthase associated protein PapA2; Catalyzes the acylation of trehalose-2-sulfate by adding the palmitoyl group at the 2'-position to yield the intermediate trehalose- 2-sulfate-2'-palmitate (SL659) during the cell wall sulfolipid-1 (SL-1) biosynthesis; Belongs to the PapA acyltransferase family. (468 aa) |
| | glf | UDP-galactopyranose mutase; Catalyzes the interconversion through a 2-keto intermediate of uridine diphosphogalactopyranose (UDP-GalP) into uridine diphosphogalactofuranose (UDP-GalF) which is a key building block for cell wall construction in Mycobacterium tuberculosis. (399 aa) |
| | glfT2 | Bifunctional UDP-galactofuranosyl transferase GlfT2; Involved in the galactan polymerization of the arabinogalactan (AG) region of the mycolylarabinogalactan-peptidoglycan (mAGP) complex, an essential component of the mycobacteria cell wall. Thus, successively transfers approximately 28 galactofuranosyl (Galf) residues from UDP-galactofuranose (UDP-Galf) onto the galactofuranosyl- galactofuranosyl-rhamnosyl-GlcNAc-diphospho-decaprenol (Galf-Galf-Rha- GlcNAc-PP-C50) acceptor produced by GlfT1, with alternating 1->5 and 1->6 links, forming a galactan domain with approximately 30 galactof [...] (637 aa) |
| | Rv3807c | Possible conserved transmembrane protein; Involved in the biosynthesis of decaprenylphosphoryl arabinose (DPA) a precursor for arabinan synthesis in mycobacterial cell wall biosynthesis. Could be involved in the dephosphorylation of decaprenylphosphoryl-5-phosphoribose (DPPR) to decaprenyl-phospho- ribose (DPR) (By similarity). (165 aa) |
| | ubiA | Decaprenyl-phosphate phosphoribosyltransferase; Involved in the biosynthesis of decaprenylphosphoryl arabinose (DPA) a precursor for arabinan synthesis in mycobacterial cell wall biosynthesis. Catalyzes the transfer of a 5-phosphoribosyl residue from phosphoribose diphosphate (pRpp) to decaprenyl phosphate (DP) to form decaprenylphosphoryl-5-phosphoribose (DPPR). The enzyme favors polyprenyl phosphate with 50-60 carbon atoms uses C-75 polyprenyl phosphate less efficiently than C-50 or C-60. Belongs to the UbiA prenyltransferase family. (302 aa) |
| | aftB | Possible arabinofuranosyltransferase AftB; Involved in the biosynthesis of the arabinogalactan (AG) region of the mycolylarabinogalactan-peptidoglycan (mAGP) complex, an essential component of the mycobacterial cell wall. Catalyzes the transfer of arabinofuranosyl (Araf) residues from the sugar donor decaprenyl-phospho-arabinose (DPA) to the arabinan domain to form terminal beta-(1->2)-linked Araf residues, which marks the end point for AG arabinan biosynthesis before decoration with mycolic acids. (627 aa) |
| | prsA | Ribose-phosphate pyrophosphokinase; Involved in the biosynthesis of the central metabolite phospho-alpha-D-ribosyl-1-pyrophosphate (PRPP) and of the decaprenylphosphoryl-arabinose (DPA), an essential precursor for the mycobacterial cell wall biosynthesis. Catalyzes the transfer of pyrophosphoryl group from ATP to 1-hydroxyl of ribose-5-phosphate (Rib- 5-P) to yield phosphoribosyl diphosphate (PRPP) and AMP. It can also use GTP, CTP and UTP as diphosphoryl donors. (326 aa) |
| | accD2 | Rv0974c, (MTV044.02c), len: 529 aa. Probable accD2,acetyl-/propionyl-CoA carboxylase (beta subunit), highly similar to many e.g. CAB95891.1|AL35998 putative acetyl/propionyl CoA carboxylase beta subunit from Streptomyces coelicolor (532 aa); NP_250704.1|NC_002516 probable acyl-CoA carboxyltransferase beta chain from Pseudomonas aeruginosa (535 aa); BAB16296.1|AB039884 acetyl-CoA carboxylase carboxyltransferase from Myxococcus xanthus (538 aa); NP_420973.1|NC_002696 putative propionyl-CoA carboxylase beta subunit from Caulobacter crescentus (530 aa); etc. Also similar to other from Myco [...] (529 aa) |
| | accD3 | Putative acetyl-coenzyme A carboxylase carboxyl transferase subunit beta; This protein is a component of the acetyl coenzyme A carboxylase complex; first, biotin carboxylase catalyzes the carboxylation of the carrier protein and then the transcarboxylase transfers the carboxyl group to form malonyl-CoA; Belongs to the AccD/PCCB family. (495 aa) |
| | lpqR | Probable conserved lipoprotein LpqR; Catalyzes hydrolysis of the D-alanyl-D-alanine dipeptide. (256 aa) |
| | cpdA | Class III cyclic nucleotide phosphodiesterase (cNMP PDE); Hydrolyzes cAMP to 5'-AMP. Plays an important regulatory role in modulating the intracellular concentration of cAMP, thereby influencing cAMP-dependent processes. Can also hydrolyze cGMP, p- nitrophenyl phosphate (pNPP), bis-(p-nitrophenyl phosphate) (bis(pNPP)), p-nitrophenyl phenylphosphonate (pNPPP) and 2',3'-cAMP. May play a role in pathogenicity, not only by hydrolyzing cAMP, but also by altering properties of the cell wall. (318 aa) |
| | mmaA1 | Mycolic acid methyltransferase MmaA1; Involved in the conversion of a cis-olefin into a trans- olefin with concomitant introduction of an allylic methyl branch at the proximal position of the precursor to both the methoxy and ketomycolic acids. It directly affects the cis- to trans ratio and indirectly affects the keto to methoxy ratio; Belongs to the CFA/CMAS family. (286 aa) |
| | mmaA2 | Cyclopropane mycolic acid synthase MmaA2; Catalyzes the conversion of a double bond to a cis cyclopropane ring at the distal position of an alpha mycolic acid via the transfer of a methylene group from S-adenosyl-L-methionine. MmaA2 also catalyzes the biosynthesis of the cis-cyclopropanated methoxymycolates. Cyclopropanated mycolic acids are key factors participating in cell envelope permeability, host immunomodulation and persistence. (287 aa) |
| | mmaA3 | Methoxy mycolic acid synthase MmaA3; Involved in the biosynthesis of methoxymycolic acid. It catalyzes the O-methylation of the hydroxy group of the hydroxymycolate to form a methyl ether; Belongs to the CFA/CMAS family. (293 aa) |
| | mmaA4 | Hydroxymycolate synthase MmaA4; Involved in the biosynthesis of hydroxymycolate, a common precursor of oxygenated mycolic acids (methoxy-mycolate and keto- mycolate). Probably transfers a methyl group from the S- adenosylmethionine (SAM) cofactor and, subsequently or simultaneously, a water molecule onto the double bound of ethylene substrates, leading to the formation of the hydroxylated product at the distal position. Involved in the activation of the antitubercular drug thiacetazone (TAC). (301 aa) |
| | lpqN | Rv0583c, (MTV039.21c), len: 228 aa. Probable lpqN,conserved lipoprotein, equivalent to AAA90989.1|U20446|MK35|U20446|MKU20446_1 lipoprotein precursor from Mycobacterium kansasii (225 aa), FASTA scores: opt: 945, E(): 0, (62.7% identity in 228 aa overlap); and similar to others from Mycobacteria e.g. Rv0040c and Rv1016c from Mycobacterium tuberculosis. Contains N-terminal signal sequence and appropriately positioned PS00013 Prokaryotic membrane lipoprotein lipid attachment site. (228 aa) |
| | cmaA2 | Cyclopropane mycolic acid synthase 2; Catalyzes the formation of trans cyclopropanated ketomycolate or methoxymycolate through the conversion of a double bond to a cyclopropane ring at the proximal position of an oxygenated mycolic acid via the transfer of a methylene group from S-adenosyl-L- methionine. In the absence of MmaA2, CmaA2 has a non-specific cis- cyclopropanating activity and is able to catalyze the conversion of a double bond to a cis cyclopropane ring at the distal position of an alpha mycolic acid. Cyclopropanated mycolic acids are key factors participating in cell envel [...] (302 aa) |
| | lprQ | Probable conserved lipoprotein LprQ; Generates 3->3 cross-links in peptidoglycan, catalyzing the cleavage of the mDap(3)-D-Ala(4) bond of a tetrapeptide donor stem and the formation of a bond between the carbonyl of mDap(3) of the donor stem and the side chain of mDap(3) of the acceptor stem. Is specific for donor substrates containing a stem tetrapeptide since it cannot use pentapeptide stems. (451 aa) |
| | murB | Probable UDP-N-acetylenolpyruvoylglucosamine reductase MurB (UDP-N-acetylmuramate dehydrogenase); Cell wall formation. (369 aa) |
| | pcaA | Mycolic acid synthase PcaA (cyclopropane synthase); Involved in the phagosome maturation block (PMB). Catalyzes the conversion of a double bond to a cyclopropane ring at the proximal position of an alpha mycolic acid via the transfer of a methylene group from S-adenosyl-L-methionine. It can use cis, cis 11,14-eicosadienoic acid and linoelaidic acid as substrate. Cyclopropanated mycolic acids are key factors participating in cell envelope permeability, host immunomodulation and persistence. (287 aa) |
| | ufaA1 | Tuberculostearic acid methyltransferase UfaA1; Involved in the biosynthesis of the tuberculostearic acid (10-methylstearic-acid or TSA), a constituent lipid of the mycobacterial cell wall. Catalyzes the transfer of the methyl group from S-adenosyl-L-methionine (SAM) to the double bond of oleic acid in phosphatidylethanolamine or phosphatidylcholine to produce TSA. Belongs to the CFA/CMAS family. (427 aa) |
| | pks6 | Rv0405, (MTCY22G10.01), len: 1402 aa. Probable pks6,membrane-bound polyketide synthase (see citation below),highly similar to others e.g. CAC29643.1|AL583917 putative polyketide synthase from Mycobacterium leprae (2103 aa); Y06K_MYCTU|Q10977 probable polyketide synthase (1876 aa),FASTA scores: opt: 2303, E(): 0, (38.7% identity in 1232 aa overlap); etc. Contains PS00606 Beta-ketoacyl synthases active site, 2 x PS00017 ATP/GTP-binding site motif A (P-loop), and PS00012 Phosphopantetheine attachment site. (1402 aa) |
| | lpqI | Probable conserved lipoprotein LpqI; Plays a role in peptidoglycan recycling by cleaving the terminal beta-1,4-linked N-acetylglucosamine (GlcNAc) from peptidoglycan fragments. Acts as a regulator for GlcNAc-MurNAc levels by cleaving disaccharides and allowing the breakdown of MurNAc. (388 aa) |
| | mmpL3 | Possible conserved transmembrane transport protein MmpL3; Transports trehalose monomycolate (TMM) across the inner membrane. Could also be part of a heme-iron acquisition system. Belongs to the resistance-nodulation-cell division (RND) (TC 2.A.6) family. MmpL subfamily. (944 aa) |
| | Rv0192 | Conserved hypothetical protein; Generates 3->3 cross-links in peptidoglycan, catalyzing the cleavage of the mDap(3)-D-Ala(4) bond of a tetrapeptide donor stem and the formation of a bond between the carbonyl of mDap(3) of the donor stem and the side chain of mDap(3) of the acceptor stem. Is specific for donor substrates containing a stem tetrapeptide since it cannot use pentapeptide stems. (366 aa) |
| | fbpC | Diacylglycerol acyltransferase/mycolyltransferase Ag85C; The antigen 85 proteins (FbpA, FbpB, FbpC) are responsible for the high affinity of mycobacteria to fibronectin, a large adhesive glycoprotein, which facilitates the attachment of M.tuberculosis to murine alveolar macrophages (AMs). They also help to maintain the integrity of the cell wall by catalyzing the transfer of mycolic acids to cell wall arabinogalactan and through the synthesis of alpha,alpha- trehalose dimycolate (TDM, cord factor). They catalyze the transfer of a mycoloyl residue from one molecule of alpha,alpha-trehal [...] (340 aa) |
| | ldtA | Probable L,D-transpeptidase LdtA; Generates 3->3 cross-links in peptidoglycan, catalyzing the cleavage of the mDap(3)-D-Ala(4) bond of a tetrapeptide donor stem and the formation of a bond between the carbonyl of mDap(3) of the donor stem and the side chain of mDap(3) of the acceptor stem. Is specific for donor substrates containing a stem tetrapeptide since it cannot use pentapeptide stems. Is thought to play a role in adaptation to the nonreplicative state of M.tuberculosis. (251 aa) |
| | ponA1 | Penicillin-insensitive transglycosylase; Cell wall formation. Synthesis of cross-linked peptidoglycan from the lipid intermediates. The enzyme has a penicillin-insensitive transglycosylase N-terminal domain (formation of linear glycan strands) and a penicillin-sensitive transpeptidase C-terminal domain (cross- linking of the peptide subunits) (By similarity). Has little peptidoglycan hydrolytic activity; however it inhibits the synergistic peptidoglycan hydrolysis of RipA plus RpfB. (678 aa) |
| | rodA | Probable cell division protein RodA; Rv0017c, (MTCY10H4.17c), len: 469 aa. Probable rodA (alternate gene name: ftsW), cell division protein,integral membrane protein. Belongs to the FTSW/RODA/SPOVE family. (469 aa) |
| | pbpA | Probable penicillin-binding protein PbpA; Cell wall formation. Plays an important role in cell division and cell shape maintenance by cross-linking adjacent peptidoglycan chains through transpeptidation; Belongs to the transpeptidase family. (491 aa) |
| | pknB | Transmembrane serine/threonine-protein kinase B PknB (protein kinase B) (STPK B); Protein kinase that regulates many aspects of mycobacterial physiology, and is critical for growth in vitro and survival of the pathogen in the host. Is a key component of a signal transduction pathway that regulates cell growth, cell shape and cell division via phosphorylation of target proteins such as GarA, GlmU, PapA5, PbpA, FhaB (Rv0019c), FhaA (Rv0020c), MviN, PstP, EmbR, Rv1422, Rv1747 and RseA. Also catalyzes the phosphorylation of the core proteasome alpha-subunit (PrcA), and thereby regulates th [...] (626 aa) |
| | cwsA | Possible membrane protein; Required for regulated cell division, cell wall synthesis and the maintenance of cell shape; Belongs to the CwsA family. (145 aa) |
| | ppsB | Phenolpthiocerol synthesis type-I polyketide synthase PpsB; Involved in the elongation of either C22-24 fatty acids by the addition of malonyl-CoA and methylmalonyl-CoA extender units to yield phthiocerol derivatives. (1538 aa) |
| | ppsC | Phenolpthiocerol synthesis type-I polyketide synthase PpsC; Involved in the elongation of either C22-24 fatty acids by the addition of malonyl-CoA and methylmalonyl-CoA extender units to yield phthiocerol derivatives. (2188 aa) |
| | ppsD | Phenolpthiocerol synthesis type-I polyketide synthase PpsD; Involved in the elongation of either C22-24 fatty acids by the addition of malonyl-CoA and methylmalonyl-CoA extender units to yield phthiocerol derivatives. (1827 aa) |
| | ppsE | Phenolpthiocerol synthesis type-I polyketide synthase PpsE; Involved in the elongation of either C22-24 fatty acids by the addition of malonyl-CoA and methylmalonyl-CoA extender units to yield phthiocerol derivatives. (1488 aa) |
| | drrB | Daunorubicin-dim-transport integral membrane protein ABC transporter DrrB; Part of the ABC transporter complex DrrABC involved in doxorubicin resistance. Probably responsible for the translocation of the substrate across the membrane; Belongs to the ABC-2 integral membrane protein family. (289 aa) |
| | papA5 | Possible conserved polyketide synthase associated protein PapA5; Catalyzes diesterification of phthiocerol, phthiodiolone, and phenolphthiocerol with mycocerosic acids, the final step in the phthiocerol, phthiodiolone and phenolphthiocerol dimycocerosate esters (PDIM) synthesis. Can directly transfer the mycocerosate bound to the mycocerosic acid synthase (mas) onto the substrate alcohols. Is also able to catalyze acyl transfer using various nucleophiles as acceptors and several acyl-CoA thioesters as donors in vitro; preference is observed for saturated medium chain alcohols and long [...] (422 aa) |
| | mas | Rv2940c, (MTCY24G1.09, MTCY19H9.08c), len: 2111 aa. Probable mas, mycocerosic acid synthase membrane associated, multifunctional enzyme (see citations below),almost identical to Q02251|MCAS_MYCBO|mas mycocerosic acid synthase from Mycobacterium bovis (2110 aa), FASTA scores: opt: 13226, E(): 0, (95.8% identity in 2115 aa overlap) (see Mathur & Kolattukudy 1992); and equivalent to Q9CD78|mas|ML0139 putative mycocerosic synthase from Mycobacterium leprae (2116 aa), FASTA scores: opt: 12142,E(): 0, (87.95% identity in 2119 aa overlap); and Q49624|PKS3|MASA|ML1229|B1170_C2_209 probable myc [...] (2111 aa) |
| | fadD28 | Fatty-acid-AMP ligase FadD28 (fatty-acid-AMP synthetase) (fatty-acid-AMP synthase); Catalyzes the activation of long-chain fatty acids (C22-24 fatty acids) as acyl-adenylates (acyl-AMP), which are then transferred to the multifunctional polyketide synthase Mas for further chain extension. Involved in the biosynthesis of mycoserates. Probably plays a role in host phagosome maturation arrest. Belongs to the ATP-dependent AMP-binding enzyme family. (580 aa) |
| | mmpL7 | Conserved transmembrane transport protein MmpL7; Required for export of phthiocerol dimycocerosate (PDIM) to the cell wall. Essential for normal replication during the active-growth phase of the murine tuberculosis model. (920 aa) |
| | lppX | Probable conserved lipoprotein LppX; Might be involved in translocating phthiocerol dimycocerosates (PDIM) from the cell membrane to the outer membrane; PDIM forms part of the cell wall; Belongs to the LppX/LprAFG lipoprotein family. (233 aa) |
| | pks1 | Probable polyketide synthase Pks1; May play a role in phthiocerol biosynthesis. (1616 aa) |
| | fadD22 | P-hydroxybenzoyl-AMP ligase FadD22; Catalyzes the adenylation of p-hydroxybenzoic acid (pHBA) to form p-hydroxybenzoic acid-AMP (pHBA-AMP), which is converted directly to p-hydroxybenzoyl-S-FadD22 (pHBA-S-FAdD22) thioester intermediate in a CoA-independent manner by attack of the phosphopantetheine thiol of FadD22. Usually, this intermediate primes the biosynthesis of the phenolphthiocerol (PPOL) by presenting the pHBA starter unit for elongation by Pks15/1, but M.tuberculosis lacks Pks15/1 due to a natural frameshift and thus is unable to produce PPOL. Belongs to the ATP-dependent AMP [...] (705 aa) |
| | Rv2949c | Chorismate pyruvate lyase; Removes the pyruvyl group from chorismate to provide 4- hydroxybenzoate (4HB). Involved in the synthesis of glycosylated p- hydroxybenzoic acid methyl esters (p-HBADs) and phenolic glycolipids (PGL) that play important roles in the pathogenesis of mycobacterial infections. (199 aa) |
| | fadD29 | Fatty-acid-AMP ligase FadD29 (fatty-acid-AMP synthetase) (fatty-acid-AMP synthase); Catalyzes the activation of the long-chain fatty acids (C22- 24 fatty acids) as acyl-adenylates (acyl-AMP), which are then transferred to the multifunctional polyketide synthase PpsA for further chain extension. Involved in the biosynthesis of phenolphthiocerol, which is an important intermediate in the biosynthesis of phenolic glycolipid (mycosid B). (619 aa) |
| | Rv2952 | Possible methyltransferase (methylase); Catalyzes the methylation of the lipid moiety of the intermediate compounds phthiotriol and glycosylated phenolphthiotriol dimycoserosates to form phthiocerol dimycocerosates (DIM A) and glycosylated phenolphthiocerol dimycocerosates (PGL). Belongs to the methyltransferase superfamily. Phthiotriol/phenolphthiotriol dimycocerosates methyltransferase family. (270 aa) |
| | Rv2953 | Enoyl reductase; Involved in the reduction of the double bond between C-4 and C-5 during phthiocerol dimycocerosates (DIM A) and glycosylated phenolphthiocerol dimycocerosates (PGL) biosynthesis. (418 aa) |
| | Rv2959c | Possible methyltransferase (methylase); Catalyzes the O-methylation of the hydroxyl group located on C-2 of the first rhamnosyl residue linked to the phenolic group of glycosylated phenolphthiocerol dimycocerosates (PGL) and p- hydroxybenzoic acid derivatives (p-HBAD). (245 aa) |
| | ddlA | Probable D-alanine--D-alanine ligase DdlA (D-alanylalanine synthetase) (D-ala-D-ala ligase); Catalyzes the ATP-driven ligation of two D-alanine molecules to form the D-alanyl-D-alanine dipeptide. This molecule is a key building block in peptidoglycan biosynthesis. (373 aa) |
| | dacB1 | Rv3330, (MTV016.30), len: 405 aa. Probable dacB1,D-alanyl-D-alanine carboxypeptidase (penicillin-binding protein), equivalent to Mycobacterium leprae proteins Q9CCM2|ML0691 putative D-alanyl-D-alanine carboxypeptidase (411 aa), FASTA scores: opt: 2066, E(): 2.5e-102, (77.15% identity in 416 aa overlap); Q49917|L308_F1_36 (228 aa),FASTA scores: opt: 1241, E(): 7.9e-59, (78.9% identity in 232 aa overlap) (note that this protein corresponds to C-terminal part of the putative protein encoded by Rv3330,aa 174-405); and Q49921|PBPC (182 aa), FASTA scores: opt: 736, E(): 3.7e-32, (73.95% iden [...] (405 aa) |
| | cmaA1 | Cyclopropane mycolic acid synthase 1; Catalyzes the conversion of a double bond to a cyclopropane ring at the distal position of an alpha mycolic acid via the transfer of a methylene group from S-adenosyl-L-methionine. Cyclopropanated mycolic acids are key factors participating in cell envelope permeability, host immunomodulation and persistence. (287 aa) |
| | whiB3 | Transcriptional regulatory protein WhiB-like WhiB3. Contains [4FE-4S] cluster; A redox-sensitive transcriptional regulator. Maintains intracellular redox homeostasis by regulating catabolic metabolism and polyketide biosynthesis. Regulates expression of the redox buffer ergothioneine (ERG) in a carbon-source- dependent manner; loss of ERG or mycothiol (MSH, the other major redox buffer in this bacteria) leads to respiratory alterations and bioenergetic deficiencies that negatively impact virulence. In response to low external pH (like that found in host macrophage phagosomes) alters en [...] (102 aa) |
| | alr | Alanine racemase Alr; Catalyzes the interconversion of L-alanine and D-alanine. D- alanine plays a key role in peptidoglycan cross-linking. (408 aa) |
| | mrsA | Probable phospho-sugar mutase / MrsA protein homolog; Catalyzes the conversion of glucosamine-6-phosphate to glucosamine-1-phosphate. (448 aa) |
| | fadD17 | Fatty-acid-CoA synthetase FadD17 (fatty-acid-CoA synthase) (fatty-acid-CoA ligase); Catalyzes the activation of long-chain fatty acids as acyl- coenzyme A (acyl-CoA), which are then transferred to the multifunctional polyketide synthase (PKS) type III for further chain extension. (502 aa) |
| | fadD19 | Fatty-acid-CoA ligase FadD19 (fatty-acid-CoA synthetase) (fatty-acid-CoA synthase); Catalyzes the activation of long-chain fatty acids as acyl- coenzyme A (acyl-CoA), which are then transferred to the multifunctional polyketide synthase (PKS) type III for further chain extension. Also involved in the degradation of cholesterol via the degradation of the side chains of C-24 branched-chain sterols. Catalyzes the ATP-dependent CoA thioesterification of the sterol 3- oxocholest-4-en-26-oate to yield 3-oxocholest-4-en-26-oyl-CoA. It can also use 3beta-hydroxy-5-cholesten-26-oate. (548 aa) |
| | espA | ESX-1 secretion-associated protein A, EspA; Required for secretion of EsxA (ESAT-6) and EsxB (CFP-10) and for virulence. Involved in translocation of bacteria from the host (human) phagolysosome to the host cytoplasm. (392 aa) |
| | Rv3627c | Conserved protein; Carboxypeptidase that cleaves terminal D-alanine from peptidoglycan in the mycobacterial cell wall. May cleave L-Lys-D-Ala and/or D-Ala-D-Ala peptide bonds. Exerts important effects on mycobacterial cell morphology and cell division. Belongs to the peptidase S13 family. (461 aa) |
| | ponA2 | PASTA domain-containing protein; Rv3682, (MTV025.030), len: 810 aa. Probable ponA2,penicillin-binding protein (class A), bienzymatic membrane-associated protein with transglycosylase and transpeptidase activities. Almost identical to Q9CB85|PON1|ML2308 penicillin binding protein (class A) from Mycobacterium leprae (803 aa) FASTA scores: opt: 4743,E(): 3.3e-217, (87.7% identity in 806 aa overlap); or P72351|PON1|PBP1 high-molecular-mass class a penicillin binding protein from Mycobacterium leprae Cosmid B577 (821 aa), FASTA scores: opt: 4547, E(): 6.3e-208, (88.05% identity in 769 aa ov [...] (810 aa) |
| | Rv3712 | Possible ligase; Rv3712, (MTV025.060), len: 413 aa. Possible ligase, equivalent to O69522|ML2326|MLCB2407.24c hypothetical 43.8 KDA protein (possible ligase) from Mycobacterium leprae (411 aa), FASTA scores: opt: 2265, E(): 8e-129, (84.25% identity in 413 aa overlap). Also similar to ligases or hypothetical proteins e.g. Q9FCA1|2SCG58.12 putative ligase from Streptomyces coelicolor (412 aa), FASTA scores: opt: 1168, E(): 6.7e-63, (45.8% identity in 406 aa overlap); P74303|SLR0938 hypothetical 50.2 KDA protein from Synechocystis sp. strain PCC 6803 (459 aa), FASTA scores: opt: 392, E(): [...] (413 aa) |
| | cobQ2 | Rv3713, (MTV025.061), len: 231 aa. Possible cobQ2,cobyric acid synthase, equivalent to O69521|ML2327|MLCB2407.23c hypothetical 24.5 KDA protein from Mycobacterium leprae (230 aa), FASTA scores: opt: 1313, E(): 4.7e-73, (86.1% identity in 230 aa overlap). Also partially similar to several cobyric acid synthases and hypothetical proteins e.g. Q9FCA0|2SCG58.13 hypothetical 26.2 KDA protein from Streptomyces coelicolor (242 aa), FASTA scores: opt: 639, E(): 6.2e-32, (46.6% identity in 234 aa overlap); Q9ZGG8|COBQ cobyric acid synthase from Heliobacillus mobilis (252 aa), FASTA scores: opt: [...] (231 aa) |
| | Rv3717 | Conserved hypothetical protein; Cell-wall hydrolase that hydrolyzes the amide bond between N- acetylmuramic acid and L-alanine in cell-wall glycopeptides. Is able to hydrolyze the cell walls of several bacterial species (i.e. Paenibacillus sp., B.avium, E.coli DH5alpha, E.aerogenes, L.acidophilus, B.thuringiensis, B.pumilus, B.subtilis and E.coli W3110), thereby showing that it is a cell-wall hydrolase with broad-spectrum activity. May have a role in peptidoglycan fragment recycling. Belongs to the N-acetylmuramoyl-L-alanine amidase 3 family. (241 aa) |
| | glfT1 | UDP-galactofuranosyl transferase GlfT1; Involved in the biosynthesis of the arabinogalactan (AG) region of the mycolylarabinogalactan-peptidoglycan (mAGP) complex, an essential component of the mycobacterial cell wall. Catalyzes the transfer of the first two galactofuranosyl (Galf) units from UDP- galactofuranose (UDP-Galf) onto the rhamnosyl-GlcNAc-diphospho- decaprenol (Rha-GlcNAc-PP-C50) acceptor, yielding galactofuranosyl- galactofuranosyl-rhamnosyl-GlcNAc-diphospho-decaprenol (Galf-Galf-Rha- GlcNAc-PP-C50). Thus, GlfT1 is the initiator of galactan synthesis, while GlfT2 continues [...] (304 aa) |
| | Rv3789 | GTRA family protein; Required for arabinosylation of arabinogalactan (AG), an essential component of the mycobacterial cell wall. Probably acts as an anchor protein recruiting AftA, the first arabinosyl transferase involved in AG biosynthesis; Belongs to the GtrA family. (121 aa) |
| | dprE1 | Decaprenylphosphoryl-beta-D-ribose 2'-oxidase; Component of the DprE1-DprE2 complex that catalyzes the 2- step epimerization of decaprenyl-phospho-ribose (DPR) to decaprenyl- phospho-arabinose (DPA), a key precursor that serves as the arabinose donor required for the synthesis of cell-wall arabinans. DprE1 catalyzes the first step of epimerization, namely FAD-dependent oxidation of the C2' hydroxyl of DPR to yield the keto intermediate decaprenyl-phospho-2'-keto-D- arabinose (DPX). The intermediate DPX is then transferred to DprE2 subunit of the epimerase complex, most probably through [...] (461 aa) |
| | dprE2 | Decaprenylphosphoryl-D-2-keto erythro pentose reductase; Component of the DprE1-DprE2 complex that catalyzes the 2- step epimerization of decaprenyl-phospho-ribose (DPR) to decaprenyl- phospho-arabinose (DPA), a key precursor that serves as the arabinose donor required for the synthesis of cell-wall arabinans. DprE1 catalyzes the first step of epimerization, namely FAD-dependent oxidation of the C2' hydroxyl of DPR to yield the keto intermediate decaprenyl-phospho-2'-keto-D- arabinose (DPX). The intermediate DPX is then transferred to DprE2 subunit of the epimerase complex, most probab [...] (254 aa) |
| | aftA | Arabinofuranosyltransferase AftA; Involved in the biosynthesis of the arabinogalactan (AG) region of the mycolylarabinogalactan-peptidoglycan (mAGP) complex, an essential component of the mycobacterial cell wall. Catalyzes the addition of the first key arabinofuranosyl (Araf) residue from the sugar donor decaprenyl-phospho-arabinose (DPA) on the C-5 of a 6-linked galactofuranosyl (Galf) of the galactan domain, thus 'priming' the galactan for further elaboration by other arabinofuranosyltransferases. It is not able to add an Araf residue to a terminal Galf. Belongs to the glycosyltransf [...] (643 aa) |
| | embC | Probable arabinosyltransferase C; Arabinosyl transferase responsible for the polymerization of arabinose into the arabinan of arabinogalactan. (1094 aa) |
| | embA | Probable arabinosyltransferase A; Arabinosyl transferase responsible for the polymerization of arabinose into the arabinan of arabinogalactan. (1094 aa) |
| | embB | Probable arabinosyltransferase B; Arabinosyl transferase responsible for the polymerization of arabinose into the arabinan of arabinogalactan; Belongs to the emb family. (1098 aa) |
| | accD4 | Rv3799c, (MTV026.04c), len: 522 aa. Probable accD4,propionyl-CoA carboxylase beta chain 4, equivalent to Q9CDB0|ACCD4|ML0102 putative acyl CoA carboxylase from Mycobacterium leprae (517 aa) FASTA scores: opt: 3154, E(): 8e-187, (91.2% identity in 511 aa overlap). Also similar to many e.g. Q9X4K7|PCCB from Streptomyces coelicolor (530 aa), FASTA scores: opt: 1714, E(): 4.4e-98, (50.0% identity in 510 aa overlap); P53003|PCCB_SACER from Saccharopolyspora erythraea (Streptomyces erythraeus) (546 aa), FASTA scores: opt: 1549, E(): 6.6e-88, (50.65% identity in 519 aa overlap); Q9WZH5|TM0716 [...] (522 aa) |
| | pks13 | Polyketide synthase Pks13; Rv3800c, (MTV026.05c), len: 1733 aa. Probable pks13,polyketide synthase, equivalent to Q9CDB1|PKS13|ML0101 polyketide synthase from Mycobacterium leprae (1784 aa),FASTA scores: opt: 7454, E(): 0, (83.6% identity in 1748 aa overlap); and similar to Q9Z5K6|ML2357|MLCB12.02c putative polyketide synthase from Mycobacterium leprae (1871 aa),FASTA scores: opt: 1682, E(): 1.2e-85, (38.3% identity in 1096 aa overlap). Also similar in part to many e.g. Q9ADL6|SORA soraphen polyketide synthase a from Polyangium cellulosum (6315 aa) FASTA scores: opt: 1422, E(): 1e-70,( [...] (1733 aa) |
| | fadD32 | Long-chain-fatty-acid--AMP ligase FadD32; Catalyzes the activation of long-chain fatty acids as acyl- adenylates (acyl-AMP), which are then transferred to the multifunctional polyketide synthase (PKS) for further chain extension. Belongs to the ATP-dependent AMP-binding enzyme family. (637 aa) |
| | fbpD | MPT51/MPB51 antigen; May have a role in host tissue attachment, whereby ligands may include the serum protein fibronectin and small sugars. (299 aa) |
| | fbpA | Diacylglycerol acyltransferase/mycolyltransferase Ag85A; The antigen 85 proteins (FbpA, FbpB, FbpC) are responsible for the high affinity of mycobacteria for fibronectin, a large adhesive glycoprotein, which facilitates the attachment of M.tuberculosis to murine alveolar macrophages (AMs). They also help to maintain the integrity of the cell wall by catalyzing the transfer of mycolic acids to cell wall arabinogalactan, and through the synthesis of alpha,alpha- trehalose dimycolate (TDM, cord factor). They catalyze the transfer of a mycoloyl residue from one molecule of alpha,alpha-treh [...] (338 aa) |
| | ppsA | Phenolpthiocerol synthesis type-I polyketide synthase PpsA; Involved in the elongation of either C22-24 fatty acids by the addition of malonyl-CoA and methylmalonyl-CoA extender units to yield phthiocerol derivatives. (1876 aa) |
| | fadD26 | Fatty-acid-AMP ligase FadD26 (fatty-acid-AMP synthetase) (fatty-acid-AMP synthase); Catalyzes the activation of long-chain fatty acids (C22-24 fatty acids) as acyl-adenylates (acyl-AMP), which are then transferred to the multifunctional polyketide synthase PpsA for further chain extension. Involved in the biosynthesis of phthiocerol dimycocerosate (DIM A) and phthiodiolone dimycocerosate (DIM B). (583 aa) |
| | tesA | Probable thioesterase TesA; Involved in the synthesis of both phthiocerol dimycocerosates (PDIMs) and phenolic glycolipids (PGLs), which are structurally related lipids non-covalently bound to the outer cell wall layer of M.tuberculosis and are important virulence factors. In vitro, TesA has both thioesterase and esterase activities. Exhibits thioesterase activity on acyl-CoA derivatives such as palmitoyl-CoA and decanoyl-CoA. Also displays hydrolytic activity on ester substrates, being more active on pNP esters with short carbon chain lengths (C2-C5) than with those bearing medium and [...] (261 aa) |
| | dacB2 | Rv2911, (MTCY274.43), len: 291 aa. Probable dacB2,D-alanyl-D-alanine carboxypeptidase (penicillin-binding protein), an ala-rich protein. Highly similar (except in N-terminus) to Q9CCM2|ML0691 putative D-alanyl-D-alanine carboxypeptidase from Mycobacterium leprae (411 aa), FASTA scores: opt: 749, E(): 9.3e-39, (46.75% identity in 276 aa overlap). Also similar to penicillin binding proteins / D-alanyl-D-alanine carboxypeptidases e.g. Q9KCJ8|SC4G1.16c D-alanyl-D-alanine carboxypeptidase from Streptomyces coelicolor (382 aa), FASTA scores: opt: 386, E(): 2.1e-16,(31.25% identity in 285 aa [...] (291 aa) |
| | Rv2864c | Rv2864c, (MTV003.10c), len: 603 aa. Possible penicillin-binding lipoprotein, probably located in periplasm, equivalent to Q9CBU6|ML1577 probable penicillin binding protein from Mycobacterium leprae (608 aa), FASTA scores: opt: 3352, E(): 2.1e-193, (81.5% identity in 606 aa overlap). Also shows some similarity to others e.g. P72405|PCBR from Streptomyces clavuligerus (551 aa), FASTA scores: opt: 543, E(): 6.1e-25, (28.4% identity in 567 aa overlap); Q9F2L0|SCH63.18c from Streptomyces coelicolor (546 aa), FASTA scores: opt: 519, E(): 1.7e-23, (29.3% identity in 577 aa overlap); Q9RKD1|SC [...] (603 aa) |
| | chiZ | Possible conserved membrane protein; Cell wall hydrolase that modulates cell division process. Probably acts by modulating FtsZ ring assembly. Murein hydrolase activity is targeted to sites of nascent peptidoglycan (PG) synthesis. Overproduction compromises midcell localization of FtsZ rings, but has no effect on the intracellular levels of FtsZ. (165 aa) |
| | aftC | Possible arabinofuranosyltransferase AftC; Involved in the biosynthesis of the arabinogalactan (AG) region of the mycolylarabinogalactan-peptidoglycan (mAGP) complex, an essential component of the mycobacterial cell wall. Catalyzes the addition of an arabinofuranosyl (Araf) residue from the sugar donor decaprenyl-phospho-arabinose (DPA) on the C-3 of an alpha-(1->5)-linked Araf from the arabinan backbone of AG. It can also use (Z,Z)- farnesylphosphoryl D-arabinose (Z-FPA), and to a lesser extent (E,E,Z,Z,Z,Z)-heptaprenylphosphoryl D-arabinose (Z-HPA) and (Z)- nerylphosphoryl D-arabinos [...] (433 aa) |
| | mltG | Probable conserved membrane protein; Functions as a peptidoglycan terminase that cleaves nascent peptidoglycan strands endolytically to terminate their elongation. Belongs to the transglycosylase MltG family. (417 aa) |
| | Rv2525c | Conserved hypothetical protein. Secreted; May function as a peptidoglycan hydrolase with glycosidase activity. In vitro, displays esterase activity toward p-nitrophenyl esters of various acyl chain length (C4 to C16), with a preference for p-nitrophenyl butyrate (C4). (240 aa) |
| | ldtB | Probable L,D-transpeptidase LdtB; Generates 3->3 cross-links in peptidoglycan, catalyzing the cleavage of the mDap(3)-D-Ala(4) bond of a tetrapeptide donor stem and the formation of a bond between the carbonyl of mDap(3) of the donor stem and the side chain of mDap(3) of the acceptor stem. Is specific for donor substrates containing a stem tetrapeptide since it cannot use pentapeptide stems. (408 aa) |
| | mbtC | Polyketide synthetase MbtC (polyketide synthase); Rv2382c, (MTCY22H8.03), len: 444 aa. MbtC,polyketide synthase (see citations below), similar in part to several synthases e.g. Q9F7T9 avermectin polyketide synthase (fragment) from Streptomyces avermitilis (3626 aa), FASTA scores: opt: 1458, E(): 7e-82, (50.65% identity in 446 aa overlap); AAG23264|SPNA polyketide synthase loading and extender module 1 from Saccharopolyspora spinosa (2595 aa) FASTA scores: opt: 1441, E(): 6e-81,(49.1% identity in 446 aa overlap); O33954|TYLG tylactone synthase starter module and modules 1 & 2 from Strep [...] (444 aa) |
| | kasB | 3-oxoacyl-[acyl-carrier protein] synthase 2 KasB (beta-ketoacyl-ACP synthase) (KAS I); Catalyzes the condensation reaction of fatty acid synthesis by the addition to an acyl acceptor of two carbons from malonyl-ACP. (438 aa) |
| | fadD15 | Long-chain-fatty-acid-CoA ligase FadD15 (fatty-acid-CoA synthetase) (fatty-acid-CoA synthase); Catalyzes the activation of long-chain fatty acids as acyl- coenzyme A (acyl-CoA), which are then transferred to the multifunctional polyketide synthase (PKS) type III for further chain extension. (600 aa) |
| | pbpB | Probable penicillin-binding membrane protein PbpB; Synthesis of cross-linked peptidoglycan from the lipid intermediates; Belongs to the transpeptidase family. (679 aa) |
| | murE | Probable UDP-N-acetylmuramoylalanyl-D-glutamate-2,6-diaminopimelate ligase MurE; Catalyzes the addition of meso-diaminopimelic acid to the nucleotide precursor UDP-N-acetylmuramoyl-L-alanyl-D-glutamate (UMAG) in the biosynthesis of bacterial cell-wall peptidoglycan. (535 aa) |
| | murF | Probable UDP-N-acetylmuramoylalanyl-D-glutamyl-2, 6-diaminopimelate-D-alanyl-D-alanyl ligase MurF; Involved in cell wall formation. Catalyzes the final step in the synthesis of UDP-N-acetylmuramoyl-pentapeptide, the precursor of murein. (510 aa) |
| | murX | Probable phospho-N-acetylmuramoyl-pentappeptidetransferase MurX; First step of the lipid cycle reactions in the biosynthesis of the cell wall peptidoglycan. (359 aa) |
| | murD | Probable UDP-N-acetylmuramoylalanine-D-glutamate ligase MurD; Cell wall formation. Catalyzes the addition of glutamate to the nucleotide precursor UDP-N-acetylmuramoyl-L-alanine (UMA). Belongs to the MurCDEF family. (486 aa) |
| | ftsW | FtsW-like protein FtsW; Peptidoglycan polymerase that is essential for cell division. Belongs to the SEDS family. FtsW subfamily. (524 aa) |
| | murG | Undecaprenyldiphospho-muramoylpentapeptide beta-N-acetylglucosaminyltransferase; Cell wall formation. Catalyzes the transfer of a GlcNAc subunit on undecaprenyl-pyrophosphoryl-MurNAc-pentapeptide (lipid intermediate I) to form undecaprenyl-pyrophosphoryl-MurNAc- (pentapeptide)GlcNAc (lipid intermediate II). (410 aa) |
| | murC | Probable UDP-N-acetylmuramate-alanine ligase MurC; Cell wall formation; Belongs to the MurCDEF family. (494 aa) |
| | wag31 | Diviva family protein Wag31; Important for maintaining cell shape and cell wall integrity by localizing peptidoglycan synthesis to the cell poles. Protects PbpB (PBP3, FtsI) from oxidative stress-induced cleavage. (260 aa) |
| | uppP | Possible conserved transmembrane protein; Catalyzes the dephosphorylation of undecaprenyl diphosphate (UPP). Confers resistance to bacitracin. (276 aa) |
| | pks12 | Polyketide synthase Pks12; Rv2048c, (MTV018.35c), len: 4151 aa. Pks12,polyketide synthase similar to many. Contains 2x PS00012 Phosphopantetheine attachment site, 2x PS00606 Beta-ketoacyl synthases active site, and PS00343 Gram-positive cocci surface proteins 'anchoring' hexapeptide. Nucleotide position 2297976 in the genome sequence has been corrected, G:A resulting in S3004L. (4151 aa) |
| | fbpB | Diacylglycerol acyltransferase/mycolyltransferase Ag85B; The antigen 85 proteins (FbpA, FbpB, FbpC) are responsible for the high affinity of mycobacteria for fibronectin, a large adhesive glycoprotein, which facilitates the attachment of M.tuberculosis to murine alveolar macrophages (AMs). They also help to maintain the integrity of the cell wall by catalyzing the transfer of mycolic acids to cell wall arabinogalactan and through the synthesis of alpha,alpha- trehalose dimycolate (TDM, cord factor). They catalyze the transfer of a mycoloyl residue from one molecule of alpha,alpha-treha [...] (325 aa) |
| | fadD1 | Possible fatty-acid-CoA ligase FadD1 (fatty-acid-CoA synthetase) (fatty-acid-CoA synthase); Rv1750c, (MTCY28.13c, MTCY04C12.34), len: 532 aa. Possible fadD1, fatty-acid-CoA synthetase, similar in part to others e.g. O35488|VLCS_MOUSE very-long-chain acyl-CoA synthetase from Mus musculus (620 aa); NP_113924.1|NM_031736 solute carrier family 27 (fatty acid transporter) member 2 from Rattus norvegicus (620 aa); NP_459076.1|NC_003197 crotonobetaine/carnitine-CoA ligase from Salmonella typhimurium (517 aa); CAIC_ECOLI|P31552 probable crotonobetaine/carnitine-CoA ligase from Escherichia coli [...] (532 aa) |
| | pks9 | Rv1664, (MTCY275.03), len: 1017 aa. Probable pks9,polyketide synthase, similar to OL56_STRAT|Q07017 oleandomycin polyketide synthase, modules 5 and 6 from Streptomyces antibioticus (3519 aa), FASTA scores: opt: 1767, E(): 0, (41.6% identity in 919 aa overlap). Similar to other Mycobacterium tuberculosis probable polyketide synthases e.g. pks6, pks8, etc. Contains PS00012 Phosphopantetheine attachment site. (1017 aa) |
| | glmU | Probable UDP-N-acetylglucosamine pyrophosphorylase GlmU; Catalyzes the last two sequential reactions in the de novo biosynthetic pathway for UDP-N-acetylglucosamine (UDP-GlcNAc). The C- terminal domain catalyzes the transfer of acetyl group from acetyl coenzyme A to glucosamine-1-phosphate (GlcN-1-P) to produce N- acetylglucosamine-1-phosphate (GlcNAc-1-P), which is converted into UDP-GlcNAc by the transfer of uridine 5-monophosphate (from uridine 5- triphosphate), a reaction catalyzed by the N-terminal domain. (495 aa) |
| | fadD30 | Fatty-acid-AMP ligase FadD30 (fatty-acid-AMP synthetase) (fatty-acid-AMP synthase); Catalyzes the activation of long-chain fatty acids as acyl- adenylates (acyl-AMP), which are then transferred to the multifunctional polyketide synthase (PKS) for further chain extension. Belongs to the ATP-dependent AMP-binding enzyme family. (585 aa) |
