Conserved protein; Effector protein that binds to the host serine protease cathepsin G on the macrophage cell membrane, inhibiting its enzymatic activity and the downstream activation of caspase-1-dependent apoptosis. Thus prevents macrophage pyroptosis and helps M.tuberculosis survival within host cells; Belongs to the mycobacterial serine protease inhibitor Rv3364c family.

Probable lipase LipD; Rv1923, (MTCY09F9.41c), len: 446 aa. Probable lipD,hydrolase lipase, similar to esterases and beta-lactamases e.g. G151214 esterase, (389 aa), fasta scores: opt: 569,E(): 5.4e-29, (33.7% identity in 401 aa overlap). Also similar to Mycobacterium tuberculosis hypothetical proteins Rv1497, Rv2463, Rv3775, etc.

RNA polymerase sigma factor, ECF subfamily, SigC; Sigma factors are initiation factors that promote the attachment of RNA polymerase to specific initiation sites and are then released. Extracytoplasmic function (ECF) sigma factors are usually held in an inactive form by an anti-sigma factor until released by regulated intramembrane proteolysis; this sigma factor does not seem to have a cognate anti-sigma factor however. It has been suggested that the sigma domains 2 and 4 may interact via polar residues in this protein to autoregulate. Positively regulates expression of a small regulon [...]

Rv1488, (MTCY277.09), len: 381 aa. Possible exported conserved protein; contains possible N-terminal signal sequence. Similar to YBBK_ECOLI|P77367 hypothetical protein ybbK from Escherichia coli (305 aa), FASTA scores: opt: 716, E(): 0, (37.1% identity in 307 aa overlap). Similar to stomatin-like proteins e.g. AF065260|AF065260_1 Clostridium difficile (320 aa), FASTA scores: opt: 767, E(): 0, (42.3% identity in 307 aa overlap). Predicted to be an outer membrane protein (See Song et al., 2008).

Rv2782c, (MTV002.47c), len: 438 aa. Probable pepR,protease/peptidase, equivalent to O32965|YR82_MYCLE|ML0855|MLCB22.26c hypothetical zinc protease from Mycobacterium leprae (445 aa), FASTA scores: opt: 2346, E(): 4.3e-146, (84.3% identity in 421 aa overlap). Also highly similar to others e.g. O86835|YA12_STRCO|SC9A10.02 from Streptomyces coelicolor (459 aa), FASTA scores: opt: 1394, E(): 1.1e-83, (51.9% identity in 416 aa overlap); Q04805|YMXG_BACSU|YMXG from Bacillus subtilis (409 aa), FASTA scores: opt: 1014, E(): 7.9e-59, (37.55% identity in 410 aa overlap); Q9KA85|BH2405 from Bacil [...]

Hypothetical protein; Rv2422, (MTCY428.25c), len: 90 aa. Hypothetical unknown protein.

19 kDa lipoprotein antigen precursor LpqH; Based on its structure might be involved in ligand transport (By similarity); Belongs to the mycobacterial 19 kDa antigen family.

Rv0406c, (MTCY22G10.02c), len: 272 aa. Beta-lactamase-like protein, equivalent to AAD38170.1|AF152397_1 beta-lactamase-like protein from Mycobacterium phlei (243 aa); AL023514|MLCB4_8 hypothetical protein from Mycobacterium leprae (251 aa), FASTA scores: opt: 1284, E(): 0, (74.9% identity in 243 aa overlap); and AAD38164.1|AF152394_2 beta-lactamase-like protein from Mycobacterium avium (247 aa), FASTA scores: opt: 1301, E(): 0, (74.2% identity in 244 aa overlap); etc. Also slight similarity to others beta-lactamases and hypothetical proteins e.g. P52700|BLA1_XANMA|628530|S45349 metallo [...]

Probable esterase LipL; Shows both esterase and beta-lactamase activities, with a much higher activity against phenyl esters than against beta-lactams. Shows esterase activity against both long-chain and short-chain p-nitrophenol (pNP) esters, with a preference for shorter chain esters. Hydrolyzes substrates containing beta-lactam ring such as nitrocefin and ampicillin. Functions as an immunogen that activates both humoral and cell-mediated responses. Belongs to the beta-lactamase family.