UniProtKB - Q5HJK5 (HDOX2_STAAC)
Protein
Heme oxygenase (staphylobilin-producing) 2
Gene
isdI
Organism
Staphylococcus aureus (strain COL)
Status
Functioni
Allows bacterial pathogens to use the host heme as an iron source. Catalyzes the oxidative degradation of the heme macrocyclic porphyrin ring to the oxo-bilirubin chromophore staphylobilin (a mixture of the linear tetrapyrroles 5-oxo-delta-bilirubin and 15-oxo-beta-bilirubin) in the presence of a suitable electron donor such as ascorbate or NADPH--cytochrome P450 reductase, with subsequent release of free iron.UniRule annotation
Catalytic activityi
- 5 AH2 + 2 H+ + heme b + 4 O2 = 5 A + δ-staphylobilin + Fe2+ + formaldehyde + 4 H2OUniRule annotationEC:1.14.99.48UniRule annotation
- 5 AH2 + 2 H+ + heme b + 4 O2 = 5 A + β-staphylobilin + Fe2+ + formaldehyde + 4 H2OUniRule annotationEC:1.14.99.48UniRule annotation
Sites
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Metal bindingi | 6 | IronUniRule annotation | 1 | |
Sitei | 66 | Transition state stabilizerUniRule annotation | 1 | |
Metal bindingi | 76 | Iron (heme axial ligand)UniRule annotation | 1 |
GO - Molecular functioni
- heme binding Source: UniProtKB-UniRule
- heme oxygenase (decyclizing) activity Source: UniProtKB-UniRule
- iron ion binding Source: UniProtKB-UniRule
- monooxygenase activity Source: UniProtKB-KW
GO - Biological processi
- heme catabolic process Source: UniProtKB-UniRule
- iron import into cell Source: InterPro
Keywordsi
Molecular function | Monooxygenase, Oxidoreductase |
Ligand | Heme, Iron, Metal-binding |
Enzyme and pathway databases
BioCyci | SAUR93062:G1G4B-162-MONOMER |
Names & Taxonomyi
Protein namesi | Recommended name: Heme oxygenase (staphylobilin-producing) 2UniRule annotation (EC:1.14.99.48UniRule annotation)Alternative name(s): Heme-degrading monooxygenase 2UniRule annotation Iron-regulated surface determinant 2UniRule annotation Iron-responsive surface determinant 2UniRule annotation |
Gene namesi | Name:isdI Ordered Locus Names:SACOL0152 |
Organismi | Staphylococcus aureus (strain COL) |
Taxonomic identifieri | 93062 [NCBI] |
Taxonomic lineagei | Bacteria › Firmicutes › Bacilli › Bacillales › Staphylococcaceae › Staphylococcus › |
Proteomesi |
|
Subcellular locationi
- Cytoplasm UniRule annotation
GO - Cellular componenti
- cytoplasm Source: UniProtKB-SubCell
Keywords - Cellular componenti
CytoplasmPTM / Processingi
Molecule processing
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
ChainiPRO_0000270082 | 1 – 108 | Heme oxygenase (staphylobilin-producing) 2Add BLAST | 108 |
Interactioni
Subunit structurei
Homodimer.
UniRule annotationFamily & Domainsi
Domains and Repeats
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Domaini | 2 – 93 | ABMUniRule annotationAdd BLAST | 92 |
Region
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Regioni | 21 – 28 | Heme bindingUniRule annotation | 8 |
Sequence similaritiesi
Belongs to the antibiotic biosynthesis monooxygenase family. Heme-degrading monooxygenase IsdG subfamily.UniRule annotation
Phylogenomic databases
HOGENOMi | CLU_141544_2_1_9 |
OMAi | FRESHSH |
Family and domain databases
HAMAPi | MF_01272, Heme_degrading_monooxygenase, 1 hit |
InterProi | View protein in InterPro IPR007138, ABM_dom IPR011008, Dimeric_a/b-barrel IPR023953, IsdG |
Pfami | View protein in Pfam PF03992, ABM, 1 hit |
SUPFAMi | SSF54909, SSF54909, 1 hit |
PROSITEi | View protein in PROSITE PS51725, ABM, 1 hit |
i Sequence
Sequence statusi: Complete.
Q5HJK5-1 [UniParc]FASTAAdd to basket
10 20 30 40 50
MFMAENRLQL QKGSAEETIE RFYNRQGIET IEGFQQMFVT KTLNTEDTDE
60 70 80 90 100
VKILTIWESE DSFNNWLNSD VFKEAHKNVR LKSDDDGQQS PILSNKVFKY
DIGYHYQK
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | CP000046 Genomic DNA Translation: AAW37449.1 |
RefSeqi | WP_000480603.1, NC_002951.2 |
Genome annotation databases
EnsemblBacteriai | AAW37449; AAW37449; SACOL0152 |
GeneIDi | 45573449 |
KEGGi | sac:SACOL0152 |
Similar proteinsi
Cross-referencesi
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | CP000046 Genomic DNA Translation: AAW37449.1 |
RefSeqi | WP_000480603.1, NC_002951.2 |
3D structure databases
SMRi | Q5HJK5 |
ModBasei | Search... |
Genome annotation databases
EnsemblBacteriai | AAW37449; AAW37449; SACOL0152 |
GeneIDi | 45573449 |
KEGGi | sac:SACOL0152 |
Phylogenomic databases
HOGENOMi | CLU_141544_2_1_9 |
OMAi | FRESHSH |
Enzyme and pathway databases
BioCyci | SAUR93062:G1G4B-162-MONOMER |
Family and domain databases
HAMAPi | MF_01272, Heme_degrading_monooxygenase, 1 hit |
InterProi | View protein in InterPro IPR007138, ABM_dom IPR011008, Dimeric_a/b-barrel IPR023953, IsdG |
Pfami | View protein in Pfam PF03992, ABM, 1 hit |
SUPFAMi | SSF54909, SSF54909, 1 hit |
PROSITEi | View protein in PROSITE PS51725, ABM, 1 hit |
ProtoNeti | Search... |
MobiDBi | Search... |
Entry informationi
Entry namei | HDOX2_STAAC | |
Accessioni | Q5HJK5Primary (citable) accession number: Q5HJK5 | |
Entry historyi | Integrated into UniProtKB/Swiss-Prot: | January 9, 2007 |
Last sequence update: | February 15, 2005 | |
Last modified: | December 2, 2020 | |
This is version 92 of the entry and version 1 of the sequence. See complete history. | ||
Entry statusi | Reviewed (UniProtKB/Swiss-Prot) | |
Annotation program | Prokaryotic Protein Annotation Program |