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HDOX_LISMC
ID   HDOX_LISMC              Reviewed;         121 AA.
AC   C1KZZ5;
DT   22-SEP-2009, integrated into UniProtKB/Swiss-Prot.
DT   26-MAY-2009, sequence version 1.
DT   03-AUG-2022, entry version 58.
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=Lm4b_00504;
OS   Listeria monocytogenes serotype 4b (strain CLIP80459).
OC   Bacteria; Firmicutes; Bacilli; Bacillales; Listeriaceae; Listeria.
OX   NCBI_TaxID=568819;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=CLIP80459;
RX   PubMed=22530965; DOI=10.1186/1471-2164-13-144;
RA   Hain T., Ghai R., Billion A., Kuenne C.T., Steinweg C., Izar B.,
RA   Mohamed W., Mraheil M., Domann E., Schaffrath S., Karst U., Goesmann A.,
RA   Oehm S., Puhler A., Merkl R., Vorwerk S., Glaser P., Garrido P.,
RA   Rusniok C., Buchrieser C., Goebel W., Chakraborty T.;
RT   "Comparative genomics and transcriptomics of lineages I, II, and III
RT   strains of Listeria monocytogenes.";
RL   BMC Genomics 13:144-144(2012).
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; FM242711; CAS04272.1; -; Genomic_DNA.
DR   RefSeq; WP_003721271.1; NC_012488.1.
DR   AlphaFoldDB; C1KZZ5; -.
DR   SMR; C1KZZ5; -.
DR   GeneID; 61169521; -.
DR   GeneID; 66485482; -.
DR   KEGG; lmc:Lm4b_00504; -.
DR   HOGENOM; CLU_141544_2_0_9; -.
DR   OMA; FRESHSH; -.
DR   BioCyc; LMON568819:LM4B_RS02490-MON; -.
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_1000214180"
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;  13785 MW;  95674EA508DA2D49 CRC64;
     MIIVTNTIKV EKGAAEHVIR QFTGANGDGH PTKDIAEVEG FLGFELWHSK PEDKDYEEVV
     VTSKWESEEA QRNWVKSDSF KKAHGRTKDT REQREDRKGI VGNAIARFEV VHVQNPVIVE
     K
 
 
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