Reviewed, UniProtKB/Swiss-Prot Q812Q3 (ISDG_BACCR)

Names and origin

Protein names

Recommended name:
    Heme-degrading monooxygenase isdG
    EC=1.14.99.3
Alternative name(s):
    Iron-regulated surface determinant isdG
    Iron-responsive surface determinant isdG
    Heme oxygenase

Gene names

Name:	isdG
Ordered Locus Names:	BC_4542

Organism

Bacillus cereus (strain ATCC 14579 / DSM 31) [Complete proteome] [HAMAP]

Taxonomic identifier

226900 [NCBI]

Taxonomic lineage

Bacteria › Firmicutes › Bacillales › Bacillaceae › Bacillus › Bacillus cereus group

Protein attributes

Sequence length	107 AA.
Sequence status	Complete.
Sequence processing	The displayed sequence is not processed.
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 in the presence of a suitable electron donor such as ascorbate or NADPH--cytochrome P450 reductase, with subsequent release of free iron By similarity.
Catalytic activity	Heme + 3 AH2 + 3 O2 = biliverdin + Fe2+ + CO + 3 A + 3 H2O. HAMAP 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
Gene Ontology (GO)
Biological process	antibiotic biosynthetic process Inferred from electronic annotation. Source: InterPro oxidation reduction Inferred from electronic annotation. Source: UniProtKB-KW
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: EC 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 – 107	107	Heme-degrading monooxygenase isdG HAMAP MF_01272		PRO_0000270072
Sites
	Metal binding	6	1	Iron Potential
	Metal binding	76	1	Iron (heme axial ligand) Potential
	Site	66	1	Transition state stabilizer Potential

Sequences

	Sequence		Length	Mass (Da)
	Q812Q3-1 [UniParc]. Last modified June 1, 2003. Version 1. Checksum: E98EA5B28C19575C	FASTA	107	12,034
	10 20 30 40 50 60 MIIVTNTAKI TKGNGHKLIE RFNKVGKVET MPGFLGLEVL LTQNTVDYDE VTISTRWNAK 70 80 90 100 EDFQGWTKSA AFKDAHSHQG GMPEYILDNK IAYYDVKVVR MPMAAAQ

References

[1]

"Genome sequence of Bacillus cereus and comparative analysis with Bacillus anthracis." Ivanova N., Sorokin A., Anderson I., Galleron N., Candelon B., Kapatral V., Bhattacharyya A., Reznik G., Mikhailova N., Lapidus A., Chu L., Mazur M., Goltsman E., Larsen N., D'Souza M., Walunas T., Grechkin Y., Pusch G. , Haselkorn R., Fonstein M., Ehrlich S.D., Overbeek R., Kyrpides N.C. Nature 423:87-91(2003) [PubMed: 12721630] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].

Cross-references

Sequence databases
EMBLGenBankDDBJ	AE016877 Genomic DNA. Translation: AAP11450.1.
RefSeq	NP_834249.1.
3D structure databases
ModBase	Search...
Genome annotation databases
GeneID	1206887.
GenomeReviews	Gene locus BC_4542 in contig AE016877_GR.
KEGG	bce:BC4542.
Organism-specific databases
CMR	Search...
Phylogenomic databases
HOGENOM	Q812Q3.
OMA	Q812Q3. DAHSHQG.
Enzyme and pathway databases
BioCyc	BCER226900:BC_4542-MON.
Family and domain databases
HAMAP	MF_01272. [Tree]
InterPro	IPR007138. Antibiotic_mOase. [Graphical view]
Pfam	PF03992. ABM. 1 hit. [Graphical view]
ProtoNet	Search...

Entry information

Entry name

ISDG_BACCR

Accession

Primary (citable) accession number: Q812Q3

Entry history

Integrated into UniProtKB/Swiss-Prot:	January 9, 2007
Last sequence update:	June 1, 2003
Last modified:	June 16, 2009
This is version 34 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation project

HAMAP (High-quality Automated and Manual Annotation of microbial Proteomes)