Cholesterol oxidase ChoD (cholesterol-O2 oxidoreductase); Catalyzes the oxidation and isomerization of cholesterol to cholestenone (4-cholesten-3-one), which is an initial step in the cholesterol degradation process. Required for virulence. Belongs to the GMC oxidoreductase family. Highly divergent.

Probable cytochrome P450 125 Cyp125; Involved in the utilization of cholesterol as the sole carbon and energy source by degrading the side chain during infection. Primarily catalyzes the sequential oxidation of the terminal methyl of cholest-4-en-3-one into (25S)-26- hydroxycholest-4-en-3-one (alcohol), (25S)-26-oxocholest-4-en-3-one (aldehyde), to finally yield the carboxylic acid (25S)-3-oxocholest-4- en-26-oate. Also able to sequentially oxidize cholesterol itself, not only cholest-4-en- 3-one. Belongs to the cytochrome P450 family.

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,( [...]

Reductase component of 3-ketosteroid-9-alpha-hydroxylase KshB; Involved in the degradation of cholesterol. Catalyzes the introduction of a 9a-hydroxyl moiety into 1,4-androstadiene-3,17-dione (ADD) to yield the 9alpha-hydroxy-1,4-androstadiene-3,17-dione (9OHADD) intermediate which spontaneously form 3-hydroxy-9,10-seconandrost- 1,3,5(10)-triene-9,17-dione (HSA) via the meta-cleavage of ring B with concomitant aromatization of ring A. KSH is also able to use 4- androstene-3,17-dione (AD), 3-oxo-23,24-bisnorcholesta-4-en-22-oate (4- BNC), 3-oxo-23,24-bisnorcholesta-1,4-dien-22-oate (1,4 [...]

Rv2776c, (MTV002.41c), len: 309 aa. Probable oxidoreductase, similar to other oxidoreductases e.g. Q9KZ15|SC10B7.17 putative iron-sulfur oxidoreductase from Streptomyces coelicolor (364 aa), FASTA scores: opt: 846,E(): 1.2e-45, (46.75% identity in 308 aa overlap); O88034|SC5A7.28c iron-sulfur oxidoreductase beta subunit from Streptomyces coelicolor (313 aa), FASTA scores: opt: 745, E(): 2.3e-39, (41.45% identity in 316 aa overlap); P33164|PDR_BURCE|OPHA1 phthalate dioxygenase reductase from Burkholderia cepacia (Pseudomonas cepacia) (321 aa), FASTA scores: opt: 616, E(): 2.9e-31, (33.6 [...]

Lanosterol 14-alpha demethylase; Its precise biological substrate is not known. Catalyzes C14- demethylation of lanosterol, 24,25-dihydrolanosterol and obtusifoliol which is critical for ergosterol biosynthesis. It transforms lanosterol into 4,4'-dimethyl cholesta-8,14,24-triene-3-beta-ol.

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.

Possible oxygenase; Rv1937, (MTCY09F9.27c), len: 839 aa. Possible oxygenase, similar in N-terminus to N-terminal part (approx. 350 aa) of dioxygenases (including ring-hydroxylating dioxygenase electron transfer components) and monooxygenases, e.g. AAC34815.1|AF071556 anthranilate dioxygenase reductase from Acinetobacter sp. (343 aa); AAK52291.1|AY026914|AntC putative anthranilate dioxygenase reductase from Pseudomonas putida (340 aa); AAF63450.1|AF218267_7|AF218267 benzoate dioxygenase / ferredoxin reductase from Pseudomonas putida (336 aa); P23101|XYLZ_PSEPU toluate 1,2-dioxygenase el [...]

Rv2380c, (MTCY22H8.05), len: 1682 aa. MbtE, peptide synthetase (see citations below), similar in part to several synthases e.g. O07944|SNBDE pristinamycin I synthase 3 and 4 from Streptomyces pristinaespiralis (4848 aa), FASTA scores: opt: 2635, E(): 1.9e-146, (36.8% identity in 1657 aa overlap); O05647|SNBDE virginiamycin S synthetase (fragment) from Streptomyces virginiae (1997 aa) FASTA scores: opt: 2580, E(): 1.6e-143, (40.65% identity in 1163 aa overlap); Q9R9I2|DHBF protein involved in siderophore production from Bacillus subtilis (2378 aa),FASTA scores: opt: 2388, E(): 3.6e-132, [...]