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Protein

Heme-degrading monooxygenase

Gene

isdG

Organism
Bacillus anthracis
Status
Reviewed-Annotation score: Annotation score: 3 out of 5-Experimental evidence at protein leveli

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 biliverdin 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

Protoheme + 3 AH2 + 3 O2 = biliverdin + Fe2+ + CO + 3 A + 3 H2O.1 PublicationUniRule annotation

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Metal bindingi6 – 61IronUniRule annotation
Sitei66 – 661Transition state stabilizerUniRule annotation
Metal bindingi76 – 761Iron (heme axial ligand)UniRule annotation

GO - Molecular functioni

  1. heme binding Source: UniProtKB-HAMAP
  2. heme oxygenase (decyclizing) activity Source: UniProtKB-HAMAP
  3. iron ion binding Source: UniProtKB-HAMAP
  4. monooxygenase activity Source: UniProtKB-KW

GO - Biological processi

  1. heme catabolic process Source: UniProtKB-HAMAP
  2. iron assimilation Source: InterPro
Complete GO annotation...

Keywords - Molecular functioni

Monooxygenase, Oxidoreductase

Keywords - Ligandi

Heme, Iron, Metal-binding

Enzyme and pathway databases

BioCyciBANT260799:GJAJ-4494-MONOMER.
BANT261594:GJ7F-4645-MONOMER.

Names & Taxonomyi

Protein namesi
Recommended name:
Heme-degrading monooxygenaseUniRule annotation (EC:1.14.99.3)
Alternative name(s):
Heme oxygenaseUniRule annotation
Iron-regulated surface determinantUniRule annotation
Iron-responsive surface determinantUniRule annotation
Gene namesi
Name:isdGUniRule annotation
Ordered Locus Names:BA_4782, GBAA_4782, BAS4437
OrganismiBacillus anthracis
Taxonomic identifieri1392 [NCBI]
Taxonomic lineageiBacteriaFirmicutesBacilliBacillalesBacillaceaeBacillusBacillus cereus group
ProteomesiUP000000427: Chromosome, UP000000594: Chromosome, UP000005639: Chromosome

Subcellular locationi

Cytoplasm UniRule annotation

GO - Cellular componenti

  1. cytoplasm Source: UniProtKB-SubCell
Complete GO annotation...

Keywords - Cellular componenti

Cytoplasm

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 107107Heme-degrading monooxygenasePRO_0000270070Add
BLAST

Expressioni

Inductioni

Up-regulated under iron-starved conditions.1 Publication

Interactioni

Subunit structurei

Homodimer.UniRule annotation

Protein-protein interaction databases

STRINGi198094.BA_4782.

Structurei

3D structure databases

ProteinModelPortaliQ81L50.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Domains and Repeats

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Domaini2 – 9493ABMUniRule annotationAdd
BLAST

Sequence similaritiesi

Belongs to the antibiotic biosynthesis monooxygenase family. Heme-degrading monooxygenase IsdG subfamily.UniRule annotation
Contains 1 ABM domain.UniRule annotation

Phylogenomic databases

eggNOGiCOG2329.
HOGENOMiHOG000008026.
KOiK07145.
OMAiISTRWKE.
OrthoDBiEOG6GTZMS.

Family and domain databases

HAMAPiMF_01272. Heme_degrading_monooxygenase.
InterProiIPR007138. ABM-like.
IPR011008. Dimeric_a/b-barrel.
IPR023953. IsdG.
[Graphical view]
PfamiPF03992. ABM. 1 hit.
[Graphical view]
SUPFAMiSSF54909. SSF54909. 1 hit.
PROSITEiPS51725. ABM. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

Q81L50-1 [UniParc]FASTAAdd to Basket

« Hide

        10         20         30         40         50
MIIVTNTAKI TKGNGHKLID RFNKVGQVET MPGFLGLEVL LTQNTVDYDE
60 70 80 90 100
VTISTRWNAK EDFQGWTKSP AFKAAHSHQG GMPDYILDNK ISYYDVKVVR

MPMAAAQ
Length:107
Mass (Da):12,004
Last modified:June 1, 2003 - v1
Checksum:iACB308A337A92DFB
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AE016879 Genomic DNA. Translation: AAP28473.1.
AE017225 Genomic DNA. Translation: AAT56735.1.
AE017334 Genomic DNA. Translation: AAT33903.1.
RefSeqiNP_846987.1. NC_003997.3.
YP_021428.1. NC_007530.2.
YP_030684.1. NC_005945.1.

Genome annotation databases

EnsemblBacteriaiAAP28473; AAP28473; BA_4782.
AAT33903; AAT33903; GBAA_4782.
AAT56735; AAT56735; BAS4437.
GeneIDi1083895.
2815699.
2851618.
KEGGiban:BA_4782.
bar:GBAA_4782.
bat:BAS4437.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AE016879 Genomic DNA. Translation: AAP28473.1.
AE017225 Genomic DNA. Translation: AAT56735.1.
AE017334 Genomic DNA. Translation: AAT33903.1.
RefSeqiNP_846987.1. NC_003997.3.
YP_021428.1. NC_007530.2.
YP_030684.1. NC_005945.1.

3D structure databases

ProteinModelPortaliQ81L50.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

STRINGi198094.BA_4782.

Protocols and materials databases

DNASUi1083895.
Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaiAAP28473; AAP28473; BA_4782.
AAT33903; AAT33903; GBAA_4782.
AAT56735; AAT56735; BAS4437.
GeneIDi1083895.
2815699.
2851618.
KEGGiban:BA_4782.
bar:GBAA_4782.
bat:BAS4437.

Phylogenomic databases

eggNOGiCOG2329.
HOGENOMiHOG000008026.
KOiK07145.
OMAiISTRWKE.
OrthoDBiEOG6GTZMS.

Enzyme and pathway databases

BioCyciBANT260799:GJAJ-4494-MONOMER.
BANT261594:GJ7F-4645-MONOMER.

Family and domain databases

HAMAPiMF_01272. Heme_degrading_monooxygenase.
InterProiIPR007138. ABM-like.
IPR011008. Dimeric_a/b-barrel.
IPR023953. IsdG.
[Graphical view]
PfamiPF03992. ABM. 1 hit.
[Graphical view]
SUPFAMiSSF54909. SSF54909. 1 hit.
PROSITEiPS51725. ABM. 1 hit.
[Graphical view]
ProtoNetiSearch...

Publicationsi

« Hide 'large scale' publications
  1. "The genome sequence of Bacillus anthracis Ames and comparison to closely related bacteria."
    Read T.D., Peterson S.N., Tourasse N.J., Baillie L.W., Paulsen I.T., Nelson K.E., Tettelin H., Fouts D.E., Eisen J.A., Gill S.R., Holtzapple E.K., Okstad O.A., Helgason E., Rilstone J., Wu M., Kolonay J.F., Beanan M.J., Dodson R.J.
    , Brinkac L.M., Gwinn M.L., DeBoy R.T., Madpu R., Daugherty S.C., Durkin A.S., Haft D.H., Nelson W.C., Peterson J.D., Pop M., Khouri H.M., Radune D., Benton J.L., Mahamoud Y., Jiang L., Hance I.R., Weidman J.F., Berry K.J., Plaut R.D., Wolf A.M., Watkins K.L., Nierman W.C., Hazen A., Cline R.T., Redmond C., Thwaite J.E., White O., Salzberg S.L., Thomason B., Friedlander A.M., Koehler T.M., Hanna P.C., Kolstoe A.-B., Fraser C.M.
    Nature 423:81-86(2003) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
    Strain: Ames / isolate Porton.
  2. "Complete genome sequence of Bacillus anthracis Sterne."
    Brettin T.S., Bruce D., Challacombe J.F., Gilna P., Han C., Hill K., Hitchcock P., Jackson P., Keim P., Longmire J., Lucas S., Okinaka R., Richardson P., Rubin E., Tice H.
    Submitted (JAN-2004) to the EMBL/GenBank/DDBJ databases
    Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
    Strain: Sterne.
  3. Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
    Strain: Ames ancestor.
  4. "Bacillus anthracis IsdG, a heme-degrading monooxygenase."
    Skaar E.P., Gaspar A.H., Schneewind O.
    J. Bacteriol. 188:1071-1080(2006) [PubMed] [Europe PMC] [Abstract]
    Cited for: FUNCTION, CATALYTIC ACTIVITY, INDUCTION.

Entry informationi

Entry nameiHDOX_BACAN
AccessioniPrimary (citable) accession number: Q81L50
Secondary accession number(s): Q6HSK4, Q6KLU7
Entry historyi
Integrated into UniProtKB/Swiss-Prot: January 9, 2007
Last sequence update: June 1, 2003
Last modified: January 7, 2015
This is version 86 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome, Reference proteome

Documents

  1. SIMILARITY comments
    Index of protein domains and families

External Data

Dasty 3

Similar proteinsi

Links to similar proteins from the UniProt Reference Clusters (UniRef) at 100%, 90% and 50% sequence identity:
100%UniRef100 combines identical sequences and sub-fragments with 11 or more residues from any organism into Uniref entry.
90%UniRef90 is built by clustering UniRef100 sequences that have at least 90% sequence identity to, and 80% overlap with, the longest sequence (a.k.a seed sequence).
50%UniRef50 is built by clustering UniRef90 seed sequences that have at least 50% sequence identity to, and 80% overlap with, the longest sequence in the cluster.