UniProtKB - P9WJ93 (KSHB_MYCTU)
Protein
3-ketosteroid-9-alpha-monooxygenase, ferredoxin reductase component
Gene
hmp
Organism
Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv)
Status
Functioni
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-BNC), 3-oxo-23,24-bisnorcholesta-4-en-22-oyl-coenzyme A thioester (4-BNC-CoA) and 3-oxo-23,24-bisnorcholesta-1,4-dien-22-oyl-coenzyme A thioester (1,4-BNC-CoA) as substrates.2 Publications
Catalytic activityi
- androsta-1,4-diene-3,17-dione + 2 H+ + O2 + 2 reduced [2Fe-2S]-[ferredoxin] = 9α-hydroxyandrosta-1,4-diene-3,17-dione + H2O + 2 oxidized [2Fe-2S]-[ferredoxin]2 PublicationsEC:1.14.15.302 Publications
Cofactori
Protein has several cofactor binding sites:- FAD1 PublicationNote: Binds 1 FAD per subunit.1 Publication
- [2Fe-2S] clusterPROSITE-ProRule annotation1 PublicationNote: Binds 1 2Fe-2S cluster.PROSITE-ProRule annotation1 Publication
Kineticsi
Kcat is 2.7 sec(-1) for 1,4-BNC-CoA as substrate (at pH 7 and at 22 degrees Celsius) (PubMed:21987574). Kcat is 0.8 sec(-1) for ADD as substrate (at pH 7 and at 25 degrees Celsius) (PubMed:19234303). Kcat is 0.61 sec(-1) for 4-BNC-CoA as substrate (at pH 7 and at 22 degrees Celsius) (PubMed:21987574). Kcat is 0.25 sec(-1) for 1,4-BNC as substrate (at pH 7 and at 22 degrees Celsius) (PubMed:21987574). Kcat is 0.08 sec(-1) for 4-BNC as substrate (at pH 7 and at 22 degrees Celsius) (PubMed:21987574). Kcat is 0.07 sec(-1) for AD as substrate (at pH 7 and at 25 degrees Celsius) (PubMed:19234303).2 Publications
- KM=3 µM for 4-BNC (at pH 7 and at 22 degrees Celsius)1 Publication
- KM=6.8 µM for 4-BNC-CoA (at pH 7 and at 22 degrees Celsius)1 Publication
- KM=17 µM for 1,4-BNC-CoA (at pH 7 and at 22 degrees Celsius)1 Publication
- KM=24 µM for AD (at pH 7 and at 25 degrees Celsius)1 Publication
- KM=70 µM for 1,4-BNC (at pH 7 and at 22 degrees Celsius)1 Publication
- KM=110 µM for ADD (at pH 7 and at 25 degrees Celsius)1 Publication
: steroid biosynthesis Pathwayi
This protein is involved in the pathway steroid biosynthesis, which is part of Lipid metabolism.1 PublicationView all proteins of this organism that are known to be involved in the pathway steroid biosynthesis and in Lipid metabolism.
Sites
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Metal bindingi | 305 | Iron-sulfur (2Fe-2S)PROSITE-ProRule annotation | 1 | |
Metal bindingi | 310 | Iron-sulfur (2Fe-2S)PROSITE-ProRule annotation | 1 | |
Metal bindingi | 313 | Iron-sulfur (2Fe-2S)PROSITE-ProRule annotation | 1 | |
Metal bindingi | 343 | Iron-sulfur (2Fe-2S)PROSITE-ProRule annotation | 1 |
GO - Molecular functioni
- 2 iron, 2 sulfur cluster binding Source: MTBBASE
- 3-ketosteroid 9-alpha-monooxygenase activity Source: UniProtKB
- electron transfer activity Source: InterPro
- FAD binding Source: MTBBASE
- ketosteroid monooxygenase activity Source: MTBBASE
- metal ion binding Source: UniProtKB-KW
GO - Biological processi
- Actinobacterium-type cell wall biogenesis Source: MTBBASE
- cholesterol catabolic process Source: MTBBASE
- glycolipid biosynthetic process Source: MTBBASE
- pathogenesis Source: MTBBASE
- response to hypoxia Source: MTBBASE
- response to nitrosative stress Source: MTBBASE
- steroid biosynthetic process Source: UniProtKB-UniPathway
Keywordsi
Molecular function | Oxidoreductase |
Biological process | Cholesterol metabolism, Lipid degradation, Lipid metabolism, Steroid metabolism, Sterol metabolism, Virulence |
Ligand | 2Fe-2S, FAD, Flavoprotein, Iron, Iron-sulfur, Metal-binding |
Enzyme and pathway databases
BioCyci | MetaCyc:G185E-7849-MONOMER MTBH37RV:G185E-7849-MONOMER |
BRENDAi | 1.14.13.142 3445 |
UniPathwayi | UPA00062 |
Names & Taxonomyi
Protein namesi | Recommended name: 3-ketosteroid-9-alpha-monooxygenase, ferredoxin reductase component1 PublicationAlternative name(s): 3-ketosteroid-9-alpha-hydroxylase, ferredoxin reductase component1 Publication Short name: KSH1 Publication Androsta-1,4-diene-3,17-dione 9-alpha-hydroxylase1 Publication (EC:1.14.15.302 Publications) Rieske-type oxygenase1 Publication Short name: RO1 Publication |
Gene namesi | Name:hmp Synonyms:kshB Ordered Locus Names:Rv3571 |
Organismi | Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv) |
Taxonomic identifieri | 83332 [NCBI] |
Taxonomic lineagei | Bacteria › Actinobacteria › Corynebacteriales › Mycobacteriaceae › Mycobacterium › Mycobacterium tuberculosis complex › |
Proteomesi |
|
Organism-specific databases
TubercuListi | Rv3571 |
PTM / Processingi
Molecule processing
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
ChainiPRO_0000404100 | 1 – 358 | 3-ketosteroid-9-alpha-monooxygenase, ferredoxin reductase componentAdd BLAST | 358 |
Proteomic databases
PaxDbi | P9WJ93 |
Expressioni
Inductioni
Induced by KstR.1 Publication
Interactioni
Subunit structurei
Monomer. The two-component system 3-ketosteroid-9-alpha-monooxygenase is composed of an oxygenase component KshA and a reductase component KshB.
1 PublicationProtein-protein interaction databases
STRINGi | 83332.Rv3571 |
Family & Domainsi
Domains and Repeats
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Domaini | 12 – 124 | FAD-binding FR-typePROSITE-ProRule annotationAdd BLAST | 113 | |
Domaini | 269 – 358 | 2Fe-2S ferredoxin-typePROSITE-ProRule annotationAdd BLAST | 90 |
Phylogenomic databases
eggNOGi | ENOG4105CJJ Bacteria COG1018 LUCA |
KOi | K15983 |
OMAi | ILACQSH |
PhylomeDBi | P9WJ93 |
Family and domain databases
CDDi | cd00207 fer2, 1 hit |
Gene3Di | 3.10.20.30, 1 hit 3.40.50.80, 1 hit |
InterProi | View protein in InterPro IPR036010 2Fe-2S_ferredoxin-like_sf IPR001041 2Fe-2S_ferredoxin-type IPR006058 2Fe2S_fd_BS IPR012675 Beta-grasp_dom_sf IPR008333 Cbr1-like_FAD-bd_dom IPR017927 FAD-bd_FR_type IPR001709 Flavoprot_Pyr_Nucl_cyt_Rdtase IPR039261 FNR_nucleotide-bd IPR001433 OxRdtase_FAD/NAD-bd IPR017938 Riboflavin_synthase-like_b-brl |
Pfami | View protein in Pfam PF00970 FAD_binding_6, 1 hit PF00111 Fer2, 1 hit PF00175 NAD_binding_1, 1 hit |
PRINTSi | PR00371 FPNCR |
SUPFAMi | SSF52343 SSF52343, 1 hit SSF54292 SSF54292, 1 hit SSF63380 SSF63380, 1 hit |
PROSITEi | View protein in PROSITE PS00197 2FE2S_FER_1, 1 hit PS51085 2FE2S_FER_2, 1 hit PS51384 FAD_FR, 1 hit |
i Sequence
Sequence statusi: Complete.
P9WJ93-1 [UniParc]FASTAAdd to basket
10 20 30 40 50
MTEAIGDEPL GDHVLELQIA EVVDETDEAR SLVFAVPDGS DDPEIPPRRL
60 70 80 90 100
RYAPGQFLTL RVPSERTGSV ARCYSLCSSP YTDDALAVTV KRTADGYASN
110 120 130 140 150
WLCDHAQVGM RIHVLAPSGN FVPTTLDADF LLLAAGSGIT PIMSICKSAL
160 170 180 190 200
AEGGGQVTLL YANRDDRSVI FGDALRELAA KYPDRLTVLH WLESLQGLPS
210 220 230 240 250
ASALAKLVAP YTDRPVFICG PGPFMQAARD ALAALKVPAQ QVHIEVFKSL
260 270 280 290 300
ESDPFAAVKV DDSGDEAPAT AVVELDGQTH TVSWPRTAKL LDVLLAAGLD
310 320 330 340 350
APFSCREGHC GACACTLRAG KVNMGVNDVL EQQDLDEGLI LACQSRPESD
SVEVTYDE
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | AL123456 Genomic DNA Translation: CCP46394.1 |
PIRi | A70606 |
RefSeqi | NP_218088.1, NC_000962.3 WP_003900102.1, NZ_NVQJ01000014.1 |
Genome annotation databases
EnsemblBacteriai | CCP46394; CCP46394; Rv3571 |
GeneIDi | 887315 |
KEGGi | mtu:Rv3571 mtv:RVBD_3571 |
Similar proteinsi
Cross-referencesi
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | AL123456 Genomic DNA Translation: CCP46394.1 |
PIRi | A70606 |
RefSeqi | NP_218088.1, NC_000962.3 WP_003900102.1, NZ_NVQJ01000014.1 |
3D structure databases
SMRi | P9WJ93 |
ModBasei | Search... |
Protein-protein interaction databases
STRINGi | 83332.Rv3571 |
Proteomic databases
PaxDbi | P9WJ93 |
Genome annotation databases
EnsemblBacteriai | CCP46394; CCP46394; Rv3571 |
GeneIDi | 887315 |
KEGGi | mtu:Rv3571 mtv:RVBD_3571 |
Organism-specific databases
TubercuListi | Rv3571 |
Phylogenomic databases
eggNOGi | ENOG4105CJJ Bacteria COG1018 LUCA |
KOi | K15983 |
OMAi | ILACQSH |
PhylomeDBi | P9WJ93 |
Enzyme and pathway databases
UniPathwayi | UPA00062 |
BioCyci | MetaCyc:G185E-7849-MONOMER MTBH37RV:G185E-7849-MONOMER |
BRENDAi | 1.14.13.142 3445 |
Family and domain databases
CDDi | cd00207 fer2, 1 hit |
Gene3Di | 3.10.20.30, 1 hit 3.40.50.80, 1 hit |
InterProi | View protein in InterPro IPR036010 2Fe-2S_ferredoxin-like_sf IPR001041 2Fe-2S_ferredoxin-type IPR006058 2Fe2S_fd_BS IPR012675 Beta-grasp_dom_sf IPR008333 Cbr1-like_FAD-bd_dom IPR017927 FAD-bd_FR_type IPR001709 Flavoprot_Pyr_Nucl_cyt_Rdtase IPR039261 FNR_nucleotide-bd IPR001433 OxRdtase_FAD/NAD-bd IPR017938 Riboflavin_synthase-like_b-brl |
Pfami | View protein in Pfam PF00970 FAD_binding_6, 1 hit PF00111 Fer2, 1 hit PF00175 NAD_binding_1, 1 hit |
PRINTSi | PR00371 FPNCR |
SUPFAMi | SSF52343 SSF52343, 1 hit SSF54292 SSF54292, 1 hit SSF63380 SSF63380, 1 hit |
PROSITEi | View protein in PROSITE PS00197 2FE2S_FER_1, 1 hit PS51085 2FE2S_FER_2, 1 hit PS51384 FAD_FR, 1 hit |
ProtoNeti | Search... |
MobiDBi | Search... |
Entry informationi
Entry namei | KSHB_MYCTU | |
Accessioni | P9WJ93Primary (citable) accession number: P9WJ93 Secondary accession number(s): L0TD71, P96853, Q7D594 | |
Entry historyi | Integrated into UniProtKB/Swiss-Prot: | April 16, 2014 |
Last sequence update: | April 16, 2014 | |
Last modified: | October 16, 2019 | |
This is version 35 of the entry and version 1 of the sequence. See complete history. | ||
Entry statusi | Reviewed (UniProtKB/Swiss-Prot) | |
Annotation program | Prokaryotic Protein Annotation Program |
Miscellaneousi
Keywords - Technical termi
Complete proteome, Reference proteomeDocuments
- Mycobacterium tuberculosis strains ATCC 25618 / H37Rv and CDC 1551 / Oshkosh
Mycobacterium tuberculosis strains ATCC 25618 / H37Rv and CDC 1551 / Oshkosh: entries and gene names - PATHWAY comments
Index of metabolic and biosynthesis pathways