Q92EH3 (HDOX_LISMO) Reviewed, UniProtKB/Swiss-Prot

Names and origin

Protein names

Recommended name:
Heme-degrading monooxygenase
EC=1.14.99.3

Alternative name(s):
Heme oxygenase
Iron-regulated surface determinant
Iron-responsive surface determinant

Gene names

Name:	isdG
Ordered Locus Names:	lmo0484

Organism

Listeria monocytogenes serovar 1/2a (strain ATCC BAA-679 / EGD-e) [Reference proteome] [HAMAP]

Taxonomic identifier

169963 [NCBI]

Taxonomic lineage

cellular organisms › Bacteria › Firmicutes › Bacilli › Bacillales › Listeriaceae › Listeria › Listeria monocytogenes

Protein attributes

Sequence length	121 AA.
Sequence status	Complete.
Protein existence	Inferred from homology

General annotation (Comments)

Function	Allows bacterial pathogens to use the host heme as an iron source. Catalyzes the oxidative degradation of the heme macrocyclic porphyrin ring to the biliverdin in the presence of a suitable electron donor such as ascorbate or NADPH--cytochrome P450 reductase, with subsequent release of free iron By similarity. HAMAP-Rule MF_01272
Catalytic activity	Heme + 3 AH2 + 3 O2 = biliverdin + Fe2+ + CO + 3 A + 3 H2O. HAMAP-Rule MF_01272
Subunit structure	Homodimer By similarity.
Subcellular location	Cytoplasm By similarity.
Sequence similarities	Belongs to the antibiotic biosynthesis monooxygenase family. Heme-degrading monooxygenase IsdG subfamily.

Ontologies

Keywords
Cellular component	Cytoplasm
Ligand	Heme Iron Metal-binding
Molecular function	Monooxygenase Oxidoreductase
Technical term	Complete proteome Reference proteome
Gene Ontology (GO)
Biological_process	heme catabolic process Inferred from electronic annotation. Source: HAMAP iron assimilation Inferred from electronic annotation. Source: InterPro
Cellular_component	cytoplasm Inferred from electronic annotation. Source: UniProtKB-SubCell
Molecular_function	heme binding Inferred from electronic annotation. Source: HAMAP heme oxygenase (decyclizing) activity Inferred from electronic annotation. Source: HAMAP iron ion binding Inferred from electronic annotation. Source: HAMAP monooxygenase activity Inferred from electronic annotation. Source: UniProtKB-KW
Complete GO annotation...

Sequence annotation (Features)

	Feature key	Position(s)	Length	Description	Graphical view	Feature identifier
Molecule processing
	Chain	1 – 121	121	Heme-degrading monooxygenase HAMAP-Rule MF_01272		PRO_0000270078
Sites
	Metal binding	6	1	Iron By similarity
	Metal binding	84	1	Iron (heme axial ligand) By similarity
	Site	74	1	Transition state stabilizer By similarity

Sequences

	Sequence		Length	Mass (Da)
	Q92EH3 [UniParc]. Last modified December 1, 2001. Version 1. Checksum: 95674EA508DA2D49	FASTA	121	13,785
	10 20 30 40 50 60 MIIVTNTIKV EKGAAEHVIR QFTGANGDGH PTKDIAEVEG FLGFELWHSK PEDKDYEEVV 70 80 90 100 110 120 VTSKWESEEA QRNWVKSDSF KKAHGRTKDT REQREDRKGI VGNAIARFEV VHVQNPVIVE K

References

[1]

"Comparative genomics of Listeria species." Glaser P., Frangeul L., Buchrieser C., Rusniok C., Amend A., Baquero F., Berche P., Bloecker H., Brandt P., Chakraborty T., Charbit A., Chetouani F., Couve E., de Daruvar A., Dehoux P., Domann E., Dominguez-Bernal G., Duchaud E. , Durant L., Dussurget O., Entian K.-D., Fsihi H., Garcia-del Portillo F., Garrido P., Gautier L., Goebel W., Gomez-Lopez N., Hain T., Hauf J., Jackson D., Jones L.-M., Kaerst U., Kreft J., Kuhn M., Kunst F., Kurapkat G., Madueno E., Maitournam A., Mata Vicente J., Ng E., Nedjari H., Nordsiek G., Novella S., de Pablos B., Perez-Diaz J.-C., Purcell R., Remmel B., Rose M., Schlueter T., Simoes N., Tierrez A., Vazquez-Boland J.-A., Voss H., Wehland J., Cossart P. Science 294:849-852(2001) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. Strain: ATCC BAA-679 / EGD-e.

Cross-references

Sequence databases
EMBL GenBank DDBJ	AL591975 Genomic DNA. Translation: CAC98563.1.
PIR	AE1135. AG1493.
RefSeq	NP_464012.1. NC_003210.1.
3D structure databases
ProteinModelPortal	Q92EH3.
ModBase	Search...
Protein-protein interaction databases
STRING	169963.lmo0484.
Protocols and materials databases
StructuralBiologyKnowledgebase	Search...
Genome annotation databases
EnsemblBacteria	CAC98563; CAC98563; CAC98563.
GeneID	985220.
KEGG	lmo:lmo0484.
PATRIC	20310035. VBILisMon69206_0503.
Organism-specific databases
GenoList	LMO0484.
Phylogenomic databases
eggNOG	COG2329.
HOGENOM	HOG000008026.
KO	K07145.
OMA	VTNTSKI.
ProtClustDB	PRK13316.
Family and domain databases
HAMAP	MF_01272. Heme_degrading_monooxygenase.
InterPro	IPR007138. Antibiotic_mOase. IPR011008. Dimeric_a/b-barrel. IPR023953. Heme-degrad_mOase. [Graphical view]
Pfam	PF03992. ABM. 1 hit. [Graphical view]
SUPFAM	SSF54909. Dimer_A_B_barrel. 1 hit.
ProtoNet	Search...

Entry information

Entry name

HDOX_LISMO

Accession

Primary (citable) accession number: Q92EH3

Entry history

Integrated into UniProtKB/Swiss-Prot:	January 9, 2007
Last sequence update:	December 1, 2001
Last modified:	May 1, 2013
This is version 67 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation program

Prokaryotic Protein Annotation Program