HDOX_LISW6
ID HDOX_LISW6 Reviewed; 121 AA.
AC A0AFT8;
DT 05-FEB-2008, integrated into UniProtKB/Swiss-Prot.
DT 28-NOV-2006, sequence version 1.
DT 03-AUG-2022, entry version 84.
DE RecName: Full=Heme-degrading monooxygenase {ECO:0000255|HAMAP-Rule:MF_01272};
DE EC=1.14.14.18 {ECO:0000255|HAMAP-Rule:MF_01272};
DE AltName: Full=Heme oxygenase {ECO:0000255|HAMAP-Rule:MF_01272};
DE AltName: Full=Iron-regulated surface determinant {ECO:0000255|HAMAP-Rule:MF_01272};
DE AltName: Full=Iron-responsive surface determinant {ECO:0000255|HAMAP-Rule:MF_01272};
GN Name=isdG {ECO:0000255|HAMAP-Rule:MF_01272}; OrderedLocusNames=lwe0452;
OS Listeria welshimeri serovar 6b (strain ATCC 35897 / DSM 20650 / CIP 8149 /
OS NCTC 11857 / SLCC 5334 / V8).
OC Bacteria; Firmicutes; Bacilli; Bacillales; Listeriaceae; Listeria.
OX NCBI_TaxID=386043;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 35897 / DSM 20650 / CIP 8149 / NCTC 11857 / SLCC 5334 / V8;
RX PubMed=16936040; DOI=10.1128/jb.00758-06;
RA Hain T., Steinweg C., Kuenne C.T., Billion A., Ghai R., Chatterjee S.S.,
RA Domann E., Kaerst U., Goesmann A., Bekel T., Bartels D., Kaiser O.,
RA Meyer F., Puehler A., Weisshaar B., Wehland J., Liang C., Dandekar T.,
RA Lampidis R., Kreft J., Goebel W., Chakraborty T.;
RT "Whole-genome sequence of Listeria welshimeri reveals common steps in
RT genome reduction with Listeria innocua as compared to Listeria
RT monocytogenes.";
RL J. Bacteriol. 188:7405-7415(2006).
CC -!- FUNCTION: Allows bacterial pathogens to use the host heme as an iron
CC source. Catalyzes the oxidative degradation of the heme macrocyclic
CC porphyrin ring to the biliverdin in the presence of a suitable electron
CC donor such as ascorbate or NADPH--cytochrome P450 reductase, with
CC subsequent release of free iron. {ECO:0000255|HAMAP-Rule:MF_01272}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=heme b + 3 O2 + 3 reduced [NADPH--hemoprotein reductase] =
CC biliverdin IXalpha + CO + Fe(2+) + H(+) + 3 H2O + 3 oxidized [NADPH--
CC hemoprotein reductase]; Xref=Rhea:RHEA:21764, Rhea:RHEA-COMP:11964,
CC Rhea:RHEA-COMP:11965, ChEBI:CHEBI:15377, ChEBI:CHEBI:15378,
CC ChEBI:CHEBI:15379, ChEBI:CHEBI:17245, ChEBI:CHEBI:29033,
CC ChEBI:CHEBI:57618, ChEBI:CHEBI:57991, ChEBI:CHEBI:58210,
CC ChEBI:CHEBI:60344; EC=1.14.14.18; Evidence={ECO:0000255|HAMAP-
CC Rule:MF_01272};
CC -!- SUBUNIT: Homodimer. {ECO:0000255|HAMAP-Rule:MF_01272}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_01272}.
CC -!- SIMILARITY: Belongs to the antibiotic biosynthesis monooxygenase
CC family. Heme-degrading monooxygenase IsdG subfamily.
CC {ECO:0000255|HAMAP-Rule:MF_01272}.
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DR EMBL; AM263198; CAK19870.1; -; Genomic_DNA.
DR RefSeq; WP_011701301.1; NC_008555.1.
DR AlphaFoldDB; A0AFT8; -.
DR SMR; A0AFT8; -.
DR STRING; 386043.lwe0452; -.
DR EnsemblBacteria; CAK19870; CAK19870; lwe0452.
DR GeneID; 61188342; -.
DR KEGG; lwe:lwe0452; -.
DR eggNOG; COG2329; Bacteria.
DR HOGENOM; CLU_141544_2_0_9; -.
DR OMA; FRESHSH; -.
DR OrthoDB; 1562645at2; -.
DR Proteomes; UP000000779; Chromosome.
DR GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR GO; GO:0020037; F:heme binding; IEA:UniProtKB-UniRule.
DR GO; GO:0004392; F:heme oxygenase (decyclizing) activity; IEA:UniProtKB-UniRule.
DR GO; GO:0005506; F:iron ion binding; IEA:UniProtKB-UniRule.
DR GO; GO:0042167; P:heme catabolic process; IEA:UniProtKB-UniRule.
DR GO; GO:0033212; P:iron import into cell; IEA:InterPro.
DR HAMAP; MF_01272; Heme_degrading_monooxygenase; 1.
DR InterPro; IPR007138; ABM_dom.
DR InterPro; IPR011008; Dimeric_a/b-barrel.
DR InterPro; IPR023953; IsdG.
DR Pfam; PF03992; ABM; 1.
DR SUPFAM; SSF54909; SSF54909; 1.
DR PROSITE; PS51725; ABM; 1.
PE 3: Inferred from homology;
KW Cytoplasm; Heme; Iron; Metal-binding; Monooxygenase; Oxidoreductase.
FT CHAIN 1..121
FT /note="Heme-degrading monooxygenase"
FT /id="PRO_1000067383"
FT DOMAIN 2..101
FT /note="ABM"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01272"
FT REGION 76..98
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT BINDING 6
FT /ligand="Fe cation"
FT /ligand_id="ChEBI:CHEBI:24875"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01272"
FT BINDING 84
FT /ligand="heme"
FT /ligand_id="ChEBI:CHEBI:30413"
FT /ligand_part="Fe"
FT /ligand_part_id="ChEBI:CHEBI:18248"
FT /note="axial binding residue"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01272"
FT SITE 74
FT /note="Transition state stabilizer"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01272"
SQ SEQUENCE 121 AA; 13845 MW; 956031E4F8DA2D49 CRC64;
MIIVTNTIKV EKGAAEHVIR QFTGANGDGH PTKDIAEVEG FLGFELWHSK PEDKDYEEVV
VTSKWESEEA QRNWVKSDSF KKAHGRTKDT REQREDRKGI VGNEIARFEV VHVQNPVTIE
K