L-gulono-1,4-lactone dehydrogenase; Oxidizes L-gulono-1,4-lactone to L-xylo-hexulonolactone which spontaneously isomerizes to L-ascorbate. Can use both cytochrome c and phenazine methosulfate as exogenous electron acceptors, but molecular oxygen does not serve as a substrate. Is very specific for the L- gulono-1,4-lactone substrate, since it can not oxidize L-galactono-1,4- lactone, D-glucurono-3,6-lactone, D-glucuronate, D-arabinose, or D- xylose; Belongs to the oxygen-dependent FAD-linked oxidoreductase family.

Rv2045c, (MTV018.32c), len: 511 aa. LipT,carboxylesterase, similar to many. Contains PS00941 Carboxylesterases type-B signature 2. Contains PS00122 Carboxylesterases type-B serine active site; Belongs to the type-B carboxylesterase/lipase family.

Rv1104, (MTV017.57), len: 229 aa. Possible para-nitrobenzyl esterase (fragment; possibly first part). Similar to the N-terminal domain of many e.g. P37967|PNBA_BACSU Bacillus subtilis (489 aa), FASTA scores: opt: 715, E(): 0, (53.4% identity in 191 aa overlap). Gene may be inactivated as a frameshift is required to obtain a product continuing in MTV017.58|Rv1105.

Rv1105, (MTV017.58), len: 171 aa. Possible para-nitrobenzyl esterase (fragment; possibly second part). Similar to C-terminal domain of many e.g. P71048 para-nitrobenzyl esterase from Bacillus subtilis (489 aa),FASTA scores: opt: 248, E(): 2.7e-10, (32.3% identity in 167 aa overlap). Gene may be inactivated as a frameshift is required to obtain a product continuing from MTV017.57|Rv1104. Start changed since first submission.

Rv1990A, len: 111 aa. Possible dehydrogenase (fragment), similar to N-terminal part of several dehydrogenases and hypothetical proteins, e.g. Rv2750|MTV002.15|AL008967 from Mycobacterium tuberculosis (272 aa), FASTA scores: opt: 151, E(): 0.0045, (47.45% identity in 78 aa overlap), but lacks C-terminal part. Maybe a pseudogene. Also similar to U17129|RSU17129_7 putative short-chain alcohol dehydrogenase from Rhodococcus erythropolis (275 aa), FASTA scores: opt: 142, E(): 0.018,(54.15% identity in 48 aa overlap). This region is a possible MT-complex-specific genomic island (See Becq et [...]

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 membrane protein; Rv1004c, (MTCI237.20c), len: 419 aa. Probable membrane protein. Contains repetitive sequences, which have similarities with elastin, and possible N-terminal signal sequence.

PPE family protein PPE8; Rv0355c, (MTCY13E10.15c, MTCY13E10.16c,MTCY13E10.17c), len: 3300 aa. PPE8, Member of the Mycobacterium tuberculosis PPE family, similar to others e.g. AL009198|MTV004_5 from Mycobacterium tuberculosis (3716 aa), FASTA scores: opt: 2906, E(): 0, (40.9% identity in 3833 aa overlap); MTV004_3 FASTA scores: (39.0% identity in 3531 aa overlap); etc. Gene contains large number of clustered Major Polymorphic Tandem Repeats (MPTR). Related to MTCY13E10.16c, E(): 0; MTCY13E10.17c, E(): 0; MTCY48.17,E(): 0; MTCY98.0034c, E(): 0; MTCY03C7.23 E(): 0; MTCY98.0031c, E(): 0; [...]

Rv3350c, (MTV004.07c), len: 3716 aa. PPE56, Member of the Mycobacterium tuberculosis PPE family of Gly-, Ala-,Asn-rich proteins, similar to many Mycobacterium tuberculosis proteins from strains H37Rv and CDC1551, e.g. O50378|Rv3347c|MTV004.03c (3157 aa), FASTA scores: opt: 6497, E(): 0, (61.65% identity in 3756 aa overlap); MTCY28_16, MTV050_2, MTY13E10_17, MTCY63_10, MTCY180_1,MTCY63_9, MTV050_1, MTV014_3, MTY13E10_15; etc.