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hsaA hsaA hsaB hsaB hsaC hsaC hsaD hsaD kshA kshA kshB kshB kstD kstD echA20 echA20 hsaF hsaF Rv3541c Rv3541c kstR kstR
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hsaAFlavin-dependent monooxygenase, oxygenase subunit HsaA; Catalyzes the o-hydroxylation of 3-hydroxy-9,10-secoandrosta- 1,3,5(10)-triene-9,17-dione (3-HSA) to 3,4-dihydroxy-9,10-secoandrosta- 1,3,5(10)-triene-9,17-dione (3,4-DHSA) in the catabolism of cholesterol. Can use either FADH(2) or FMNH(2) as flavin cosubstrate. Also catalyzes the o-hydroxylation of a range of p-substituted phenols to generate the corresponding catechols. (394 aa)    
Predicted Functional Partners:
hsaB
Flavin-dependent monooxygenase, reductase subunit HsaB; Catalyzes the reduction of free flavins (FMN or FAD) by NADH. Subsequently, the reduced flavins diffuse to the HsaA oxygenase subunit; Belongs to the non-flavoprotein flavin reductase family.
 
 
 0.999
hsaC
3,4-DHSA dioxygenase; Catalyzes the meta-cleavage of 3,4-dihydroxy-9,10- seconandrost-1,3,5(10)-triene-9,17-dione (3,4-DHSA) to produce 4,5- 9,10-diseco-3-hydroxy-5,9,17-trioxoandrosta-1(10),2-diene-4-oic acid (4,9-DSHA).
 
 
 0.999
hsaD
4,9-DHSA hydrolase; Catalyzes the hydrolysis of a carbon-carbon bond in 4,5: 9,10-diseco-3-hydroxy-5,9,17-trioxoandrosta-1(10),2-diene-4-oate (4,9- DSHA) to yield 9,17-dioxo-1,2,3,4,10,19-hexanorandrostan-5-oate (DOHNAA) and 2-hydroxy-hexa-2,4-dienoate (HHD). Is also able to catalyze the hydrolysis of 2-hydroxy-6-oxo-6-phenylhexa-2,4-dienoic acid (HOPDA) and the synthetic analog 8-(2-chlorophenyl)-2-hydroxy-5- methyl-6-oxoocta-2,4-dienoic acid (HOPODA). Belongs to the AB hydrolase superfamily. HsaD family.
 
 
 0.999
kshA
Oxygenase component of 3-ketosteroid-9-alpha-hydroxylase KshA; 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 [...]
 
  
 0.959
kshB
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 [...]
 
  
 0.945
kstD
Probable dehydrogenase; Catalyzes the elimination of the C-1 and C-2 hydrogen atoms of the A-ring from the polycyclic ring structure of 3-ketosteroids. Is also involved in the formation of 3-keto-1,4-diene-steroid from 3-keto- 4-ene-steroid.
 
 
 0.938
echA20
Probable enoyl-CoA hydratase EchA20 (enoyl hydrase) (unsaturated acyl-CoA hydratase) (crotonase); Rv3550, (MTCY03C7.06c), len: 247 aa. Probable echA20, enoyl-CoA hydratase, similar to others e.g. Q9A7B0|CC1814 from Caulobacter crescentus (275 aa), FASTA scores: opt: 488, E(): 3.5e-24, (36.4% identity in 239 aa overlap); O84978|PHAA from Pseudomonas putida (293 aa),FASTA scores: opt: 383, E(): 2e-17, (33.85% identity in 254 aa overlap); BAB48479|Q98LI4|MLL1009 from Rhizobium loti (Mesorhizobium loti) (258 aa), FASTA scores: opt: 378, E(): 3.8e-17, (21.45% identity in 231 aa overlap); et [...]
 
 0.934
hsaF
Probable 4-hydroxy-2-oxovalerate aldolase (HOA); Catalyzes the retro-aldol cleavage of 4-hydroxy-2- oxopentanoate to pyruvate and acetaldehyde. Is involved in the meta- cleavage pathway for the degradation of aromatic compounds. Belongs to the 4-hydroxy-2-oxovalerate aldolase family.
 
 0.872
Rv3541c
Conserved protein; Rv3541c, (MTCY03C7.15), len: 129 aa. Conserved protein, showing some similarity to Q9CBJ7|ML1909 hypothetical protein from Mycobacterium leprae (142 aa) FASTA scores: opt: 110, E(): 1.2, (27.95% identity in 118 aa overlap); and other (see also blastp results) e.g. Q9L0M3|SCD82.08 hypothetical 15.2 KDA protein from Streptomyces coelicolor (142 aa), FASTA scores: opt: 127,E(): 0.086, (27.65% identity in 123 aa overlap). Contains PS00075 Dihydrofolate reductase signature.
 
 0.842
kstR
Transcriptional regulatory protein KstR (probably TetR-family); Controls the expression of genes used for utilizing diverse lipids as energy sources.
 
  
 0.827
Your Current Organism:
Mycobacterium tuberculosis H37Rv
NCBI taxonomy Id: 83332
Other names: M. tuberculosis H37Rv, Mycobacterium sp. H37Rv, Mycobacterium tuberculosis str. H37Rv, Mycobacterium tuberculosis strain H37Rv
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