Rv0339c, (MTCY279.06c), len: 832 aa. Possible transcriptional regulator, showing very weak similarity with parts of others. Contains PS00017 ATP/GTP-binding site motif A (P-loop); and probable helix-turn helix motif from aa 778-799 (Score 1041, +2.73 SD).

Rv2231c, (MTCY427.12c), len: 364 aa. Possible cobC,aminotransferase. Note that initiation codon uncertain. Similar to CobC aminotransferases e.g. sp|P21633|COBC_PSEDE COBC protein (333 aa) opt: 277, E(): 1.7e-11; 28.8% identity in 313 aa overlap and also to e.g. SW:HIS8_ECOLI P06986 histidinol-phosphate aminotransferase (27.0% identity in 289 aa overlap), contains PS00105 aminotransferases class-I pyridoxal-phosphate attachment site. Real Mycobacterium tuberculosis histidinol-phosphate aminotransferase, hisC, is Rv1600 (MTCY336.04c); Belongs to the class-I pyridoxal-phosphate-dependent [...]

Rv0339c, (MTCY279.06c), len: 832 aa. Possible transcriptional regulator, showing very weak similarity with parts of others. Contains PS00017 ATP/GTP-binding site motif A (P-loop); and probable helix-turn helix motif from aa 778-799 (Score 1041, +2.73 SD).

Rv0341, (MTCY13E10.01), len: 479 aa. IniB,isoniazid-inducible gene, (see citations below). Protein very Gly-, Ala-rich, similar to cell wall proteins e.g. P27483|GRP_ARATH glycine-rich cell wall structural protein from A.thaliana (338 aa), FASTA scores: opt: 532, E(): 5.2e-13, (39.3% identity in 321 aa overlap). MEME-mast analysis shows similarity to product of upstream gene,Rv0340.

Rv0339c, (MTCY279.06c), len: 832 aa. Possible transcriptional regulator, showing very weak similarity with parts of others. Contains PS00017 ATP/GTP-binding site motif A (P-loop); and probable helix-turn helix motif from aa 778-799 (Score 1041, +2.73 SD).

Rv0343, (MTCY13E10.03), len: 493 aa. IniC,isoniazid-inducible gene, (see citations below). Shows slight similarity to P40983|YOR6_THER8 hypothetical protein (402 aa), FASTA scores: opt: 196, E(): 2.6e-05, (25.9% identity in 228 aa overlap). Also some similarity to upstream ORF Rv0342|iniA. Contains (PS00017) ATP/GTP-binding site motif A (P-loop). Note that the iniA gene is also induced by the antibiotic ethambutol, an agent that inhibits cell wall biosynthesis by a mechanism that is distinct from isoniazid.

Rv1489A, len: 76 aa. Conserved protein, similar to part of alpha subunit of many methylmalonyl-CoA mutases (~750 aa). Size difference suggests possible gene fragment although Mycobacterium tuberculosis has intact methylmalonyl-CoA mutase gene. P71774|MUTB_MYCTU probable methylmalonyl-CoA mutase from Mycobacterium tuberculosis (750 aa), FASTA scores: opt: 258, E(): 3.2e-10, (73.35% identity in 60 aa overlap). ORF predicted by GC plot.

Probable arabinosyltransferase A; Arabinosyl transferase responsible for the polymerization of arabinose into the arabinan of arabinogalactan.

Rv1489A, len: 76 aa. Conserved protein, similar to part of alpha subunit of many methylmalonyl-CoA mutases (~750 aa). Size difference suggests possible gene fragment although Mycobacterium tuberculosis has intact methylmalonyl-CoA mutase gene. P71774|MUTB_MYCTU probable methylmalonyl-CoA mutase from Mycobacterium tuberculosis (750 aa), FASTA scores: opt: 258, E(): 3.2e-10, (73.35% identity in 60 aa overlap). ORF predicted by GC plot.

Probable arabinosyltransferase B; Arabinosyl transferase responsible for the polymerization of arabinose into the arabinan of arabinogalactan; Belongs to the emb family.

Rv1489A, len: 76 aa. Conserved protein, similar to part of alpha subunit of many methylmalonyl-CoA mutases (~750 aa). Size difference suggests possible gene fragment although Mycobacterium tuberculosis has intact methylmalonyl-CoA mutase gene. P71774|MUTB_MYCTU probable methylmalonyl-CoA mutase from Mycobacterium tuberculosis (750 aa), FASTA scores: opt: 258, E(): 3.2e-10, (73.35% identity in 60 aa overlap). ORF predicted by GC plot.

Probable arabinosyltransferase C; Arabinosyl transferase responsible for the polymerization of arabinose into the arabinan of arabinogalactan.

Rv1489A, len: 76 aa. Conserved protein, similar to part of alpha subunit of many methylmalonyl-CoA mutases (~750 aa). Size difference suggests possible gene fragment although Mycobacterium tuberculosis has intact methylmalonyl-CoA mutase gene. P71774|MUTB_MYCTU probable methylmalonyl-CoA mutase from Mycobacterium tuberculosis (750 aa), FASTA scores: opt: 258, E(): 3.2e-10, (73.35% identity in 60 aa overlap). ORF predicted by GC plot.

Probable methylmalonyl-CoA mutase small subunit MutA (MCM); Catalyzes the isomerization of succinyl-CoA to methylmalonyl- CoA during synthesis of propionate from tricarboxylic acid-cycle intermediates; Belongs to the methylmalonyl-CoA mutase family.

Rv1489A, len: 76 aa. Conserved protein, similar to part of alpha subunit of many methylmalonyl-CoA mutases (~750 aa). Size difference suggests possible gene fragment although Mycobacterium tuberculosis has intact methylmalonyl-CoA mutase gene. P71774|MUTB_MYCTU probable methylmalonyl-CoA mutase from Mycobacterium tuberculosis (750 aa), FASTA scores: opt: 258, E(): 3.2e-10, (73.35% identity in 60 aa overlap). ORF predicted by GC plot.

Probable methylmalonyl-CoA mutase large subunit MutB (MCM); Catalyzes the isomerization of succinyl-CoA to methylmalonyl- CoA during synthesis of propionate from tricarboxylic acid-cycle intermediates.

Rv3177, (MTV014.21), len: 286 aa. Possible peroxidase (non-haem peroxidase), highly similar to Q9KJF9|W78 cultivar specificity protein (similar to alpha/beta hydrolase fold) W78 from Rhizobium leguminosarum (287 aa), FASTA scores: opt: 1059, E(): 2.3e-59, (61.4% identity in 272 aa overlap); BAB48728|MLL1328 hypothetical protein from Rhizobium loti (Mesorhizobium loti) (286 aa),FASTA scores: opt: 746, E(): 1.1e-39, (43.25% identity in 282 aa overlap). Similar to nonheme chloroperoxidases and related esterases e.g. O73957|SAL lipolytic enzyme from Sulfolobus acidocaldarius (314 aa), FAST [...]

60 kDa chaperonin 2; Prevents aggregation of substrate proteins and promotes their refolding.

Rv3177, (MTV014.21), len: 286 aa. Possible peroxidase (non-haem peroxidase), highly similar to Q9KJF9|W78 cultivar specificity protein (similar to alpha/beta hydrolase fold) W78 from Rhizobium leguminosarum (287 aa), FASTA scores: opt: 1059, E(): 2.3e-59, (61.4% identity in 272 aa overlap); BAB48728|MLL1328 hypothetical protein from Rhizobium loti (Mesorhizobium loti) (286 aa),FASTA scores: opt: 746, E(): 1.1e-39, (43.25% identity in 282 aa overlap). Similar to nonheme chloroperoxidases and related esterases e.g. O73957|SAL lipolytic enzyme from Sulfolobus acidocaldarius (314 aa), FAST [...]

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 [...]

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 [...]

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 [...]

Rv2231c, (MTCY427.12c), len: 364 aa. Possible cobC,aminotransferase. Note that initiation codon uncertain. Similar to CobC aminotransferases e.g. sp|P21633|COBC_PSEDE COBC protein (333 aa) opt: 277, E(): 1.7e-11; 28.8% identity in 313 aa overlap and also to e.g. SW:HIS8_ECOLI P06986 histidinol-phosphate aminotransferase (27.0% identity in 289 aa overlap), contains PS00105 aminotransferases class-I pyridoxal-phosphate attachment site. Real Mycobacterium tuberculosis histidinol-phosphate aminotransferase, hisC, is Rv1600 (MTCY336.04c); Belongs to the class-I pyridoxal-phosphate-dependent [...]

Rv0339c, (MTCY279.06c), len: 832 aa. Possible transcriptional regulator, showing very weak similarity with parts of others. Contains PS00017 ATP/GTP-binding site motif A (P-loop); and probable helix-turn helix motif from aa 778-799 (Score 1041, +2.73 SD).

Rv2231c, (MTCY427.12c), len: 364 aa. Possible cobC,aminotransferase. Note that initiation codon uncertain. Similar to CobC aminotransferases e.g. sp|P21633|COBC_PSEDE COBC protein (333 aa) opt: 277, E(): 1.7e-11; 28.8% identity in 313 aa overlap and also to e.g. SW:HIS8_ECOLI P06986 histidinol-phosphate aminotransferase (27.0% identity in 289 aa overlap), contains PS00105 aminotransferases class-I pyridoxal-phosphate attachment site. Real Mycobacterium tuberculosis histidinol-phosphate aminotransferase, hisC, is Rv1600 (MTCY336.04c); Belongs to the class-I pyridoxal-phosphate-dependent [...]

Mce-family protein Mce1A; Rv0169, (MTCI28.09), len: 454 aa. Mce1A; belongs to 24-membered Mycobacterium tuberculosis Mce protein family (see citations below), highly similar to Mycobacterium tuberculosis proteins O07789|MCE2|Rv0589|MTCY19H5.33c|mce2A (404 aa); O53967|MCE3|Rv1966|MTV051.04|mce3A (425 aa); etc. Also highly similar to others e.g. AAD52105.1|AF113402_1|AF113402 mycobacterial cell entry protein from Mycobacterium bovis BCG (454 aa); NP_302656.1|NC_002677 putative cell invasion protein from Mycobacterium leprae (441 aa); AAA92845.1|U26018 mce gene product from Mycobacterium [...]

Rv2231c, (MTCY427.12c), len: 364 aa. Possible cobC,aminotransferase. Note that initiation codon uncertain. Similar to CobC aminotransferases e.g. sp|P21633|COBC_PSEDE COBC protein (333 aa) opt: 277, E(): 1.7e-11; 28.8% identity in 313 aa overlap and also to e.g. SW:HIS8_ECOLI P06986 histidinol-phosphate aminotransferase (27.0% identity in 289 aa overlap), contains PS00105 aminotransferases class-I pyridoxal-phosphate attachment site. Real Mycobacterium tuberculosis histidinol-phosphate aminotransferase, hisC, is Rv1600 (MTCY336.04c); Belongs to the class-I pyridoxal-phosphate-dependent [...]

Mce-family protein Mce1D; Rv0172, (MTCI28.12), len: 530 aa. Mce1D; belongs to 24-membered Mycobacterium tuberculosis Mce protein family (see citations below), highly similar to Mycobacterium tuberculosis proteins O07786|Rv0592|MTCY19H5.30c|mce2D (508 aa); O53970|Rv1969|MTV051.07|mce3D (423 aa); etc. Also highly similar to others e.g. NP_302659.1|NC_002677 putative secreted protein from Mycobacterium leprae (531 aa); CAC12795.1|AL445327 putative secreted protein from Streptomyces coelicolor (337 aa); etc. Hydrophobic region at N-terminus. Predicted to be an outer membrane protein (See S [...]

Rv2231c, (MTCY427.12c), len: 364 aa. Possible cobC,aminotransferase. Note that initiation codon uncertain. Similar to CobC aminotransferases e.g. sp|P21633|COBC_PSEDE COBC protein (333 aa) opt: 277, E(): 1.7e-11; 28.8% identity in 313 aa overlap and also to e.g. SW:HIS8_ECOLI P06986 histidinol-phosphate aminotransferase (27.0% identity in 289 aa overlap), contains PS00105 aminotransferases class-I pyridoxal-phosphate attachment site. Real Mycobacterium tuberculosis histidinol-phosphate aminotransferase, hisC, is Rv1600 (MTCY336.04c); Belongs to the class-I pyridoxal-phosphate-dependent [...]

Rv0168, (MTCI28.08), len: 289 aa. YrbE1B, unknown integral membrane protein, part of mce1 operon and member of YrbE family (see citations below), highly similar to Mycobacterium tuberculosis proteins O07790|Rv0588|MTCY19H5.34|yrbE2B (295 aa); O53966|Rv1965|MTV051.03|yrbE3B (271 aa); etc. Also highly similar to conserved hypothetical integral membrane proteins of the yrbEB type, e.g. NP_302655.1|NC_002677 conserved membrane protein from Mycobacterium leprae (289 aa); P45030|YRBE_HAEIN|HI1086 hypothetical protein from Haemophilus influenzae (261 aa), FASTA scores: opt: 223,E(): 7.6e-07, [...]

Probable chaperone protein DnaK (heat shock protein 70) (heat shock 70 kDa protein) (HSP70); Acts as a chaperone; Belongs to the heat shock protein 70 family.

60 kDa chaperonin 2; Prevents aggregation of substrate proteins and promotes their refolding.

Probable chaperone protein DnaK (heat shock protein 70) (heat shock 70 kDa protein) (HSP70); Acts as a chaperone; Belongs to the heat shock protein 70 family.

Rv2006, (MTCY39.11c), len: 1327 aa. OtsB1,trehalose-6-phosphate phosphatase (see citations below). Belongs to Glycosyl hydrolases family 65. Note that previously known as otsB. Predicted possible vaccine candidate (See Zvi et al., 2008).

Probable chaperone protein DnaK (heat shock protein 70) (heat shock 70 kDa protein) (HSP70); Acts as a chaperone; Belongs to the heat shock protein 70 family.

Trehalose 6-phosphate phosphatase OtsB2 (trehalose-phosphatase) (TPP); Removes the phosphate from trehalose 6-phosphate to produce free trehalose.

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 [...]

Probable arabinosyltransferase A; Arabinosyl transferase responsible for the polymerization of arabinose into the arabinan of arabinogalactan.

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 [...]

Probable arabinosyltransferase B; Arabinosyl transferase responsible for the polymerization of arabinose into the arabinan of arabinogalactan; Belongs to the emb family.