Rv1414, (MTCY21B4.31), len: 133 aa. Conserved hypothetical protein, similar to C-terminal part of AB010956|AB010956_1 novel metal-activated pyridoxal enzyme from Arthrobacter sp. (379 aa), FASTA scores: opt: 163,E(): 0.00063, (32.1% identity in 112 aa overlap). Rv1413 is similar to N-terminal part of same enzyme suggesting possible frameshift. Sequence has been checked and no errors found, it is identical in Mycobacterium bovis strain AF2122/97 and in Mycobacterium tuberculosis CDC1551.

Rv2308, (MTCY339.01c), len: 238 aa. Conserved hypothetical protein, sharing similarity with O53464|Rv2018|MTV018.05 from Mycobacterium tuberculosis (239 aa), FASTA scores: opt: 142, E(): 0.034, (24.8% identity in 250 aa overlap). As contains possible helix-turn-helix motif at aa 16-37 (Sequence: YVYAEVDKLIGLPAGTAKRWIN) (Score 1169, +3.17 SD), may be a transcriptional regulator. This region is a possible MT-complex-specific genomic island (See Becq et al.,2007).

Probable conserved transmembrane protein; Required for the import of both fatty acids and cholesterol during growth in macrophages and in axenic culture. Facilitates the uptake of these lipids by stabilizing protein subunits of the Mce1 and Mce4 multi-subunit transporters, which transport fatty acids and cholesterol, respectively. Required for full virulence in vivo.

Rv2219, (MTCY190.30), len: 250 aa. Probable conserved transmembrane protein. Equivalent to hypothetical membrane protein ML0857 (250 aa) from Mycobacterium leprae Z98741 |MLCB22_13 Mycobacterium leprae cosmid B22; H (250 aa) opt : 1328, E(): 0; 80.8% identity in 250 aa overlap.

Rv3445c, (MTCY77.17c), len: 105 aa. EsxU, ESAT-6 like protein (see citations below), showing weak similarity to O30373|VCD|PA2257 pyoverdine biosynthesis protein from Pseudomonas aeruginosa (215 aa), FASTA scores: opt: 103,E(): 5.6, (32.35% identity in 133 aa overlap). Seems to belong to the ESAT6 family. Start changed since first submission (-20 aa); Belongs to the WXG100 family. CFP-10 subfamily.

Rv0544c, (MTCY25D10.23c), len: 92 aa. Possible conserved transmembrane protein, equivalent to NP_302470.1|NC_002677 possible membrane protein from Mycobacterium leprae (96 aa); and shows some similarity to MLU15187_33|Q50172|U296V from Mycobacterium leprae (36 aa),FASTA scores: opt: 151, E(): 2.1e-05, (71.4% identity in 35 aa overlap). Also some similarity with VATL_NEPNO|Q26250 vacuolar ATP synthase 16 kDa proteolipid from Nephrops norvegicus (159 aa), FASTA scores: opt: 80, E(): 11, (26.1% identity in 88 aa overlap). A core mycobacterial gene; conserved in mycobacterial strains (See [...]

Probable low-affinity inorganic phosphate transporter integral membrane protein PitA; Low-affinity inorganic phosphate transport.

Rv3485c, (MTCY13E12.38c), len: 314 aa. Probable short-chain dehydrogenase/reductase, similar, but longer 41 aa, to P71824|Rv0769|MTCY369.14 putative short-chain type dehydrogenase/reductase CY369.14 from Mycobacterium tuberculosis (248 aa), FASTA scores: opt: 462, E(): 1.8e-19, (34.0% identity in 253 aa overlap). Also similar to various dehydrogenases e.g. P25529|HDHA_ECOLI|HSDH|B1619 NAD-dependent 7 alpha-hydroxysteroid dehydrogenase (SDR family) from Escherichia coli strain K12 (alias BAB35750|ECS2327 or AAG56608|HDHA for strain O157:H7) (255 aa), FASTA scores: opt: 462, E(): 1.8e-19 [...]

Possible triacylglycerol synthase (diacylglycerol acyltransferase); Upon expression in E.coli has a weak triacylglycerol synthase function, making triacylglycerol (TG) from diolein and long-chain fatty acyl-CoA. Also functions weakly as a wax synthase, as it incorporates palmityl alcohol into wax esters in the presence of palmitoyl-CoA.