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O50171

- BFR1_MAGMG

UniProt

O50171 - BFR1_MAGMG

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Protein

Bacterioferritin subunit 1

Gene
bfr1
Organism
Magnetospirillum magnetotacticum (Aquaspirillum magnetotacticum)
Status
Reviewed - Annotation score: 3 out of 5 - Protein inferred from homologyi

Functioni

Iron-storage protein, whose ferroxidase center binds Fe2+ ions, oxidizes them by dioxygen to Fe3+, and participates in the subsequent Fe3+ oxide mineral core formation within the central cavity of the protein complex By similarity.

Catalytic activityi

4 Fe2+ + 4 H+ + O2 = 4 Fe3+ + 2 H2O.

Cofactori

Binds 1 heme B (iron-protoporphyrin IX) group per dimer Reviewed prediction.
Binds 2 iron ions per subunit. The catalytic dinuclear iron-binding site within each subunit is known as the ferroxidase center By similarity.

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Metal bindingi18 – 181Iron 1 By similarity
Metal bindingi49 – 491Iron (heme axial ligand); shared with dimeric partner Reviewed prediction
Metal bindingi51 – 511Iron 1 By similarity
Metal bindingi51 – 511Iron 2 By similarity
Metal bindingi54 – 541Iron 1 By similarity
Metal bindingi94 – 941Iron 2 By similarity
Metal bindingi129 – 1291Iron 1 By similarity
Metal bindingi129 – 1291Iron 2 By similarity
Metal bindingi132 – 1321Iron 2 By similarity

GO - Molecular functioni

  1. ferric iron binding Source: InterPro
  2. ferroxidase activity Source: UniProtKB-EC

GO - Biological processi

  1. cellular iron ion homeostasis Source: UniProtKB-KW
  2. iron ion transport Source: InterPro
Complete GO annotation...

Keywords - Molecular functioni

Oxidoreductase

Keywords - Biological processi

Iron storage

Keywords - Ligandi

Heme, Iron, Metal-binding

Names & Taxonomyi

Protein namesi
Recommended name:
Bacterioferritin subunit 1 (EC:1.16.3.1)
Short name:
BFR 1
Gene namesi
Name:bfr1
OrganismiMagnetospirillum magnetotacticum (Aquaspirillum magnetotacticum)
Taxonomic identifieri188 [NCBI]
Taxonomic lineageiBacteriaProteobacteriaAlphaproteobacteriaRhodospirillalesRhodospirillaceaeMagnetospirillum

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 164164Bacterioferritin subunit 1PRO_0000192596Add
BLAST

Interactioni

Subunit structurei

Oligomer of 24 subunits, arranged as 12 dimers, that are packed together to form an approximately spherical molecule with a central cavity, in which large amounts of iron can be deposited By similarity.

Structurei

3D structure databases

ProteinModelPortaliO50171.

Family & Domainsi

Domains and Repeats

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Domaini1 – 147147Ferritin-like diironAdd
BLAST

Sequence similaritiesi

Belongs to the bacterioferritin family.

Family and domain databases

Gene3Di1.20.1260.10. 1 hit.
InterProiIPR002024. Bacterioferritin.
IPR009040. Ferritin-like_diiron.
IPR009078. Ferritin-like_SF.
IPR012347. Ferritin-rel.
IPR008331. Ferritin_DPS_dom.
[Graphical view]
PfamiPF00210. Ferritin. 1 hit.
[Graphical view]
PIRSFiPIRSF002560. Bacterioferritin. 1 hit.
PRINTSiPR00601. BACFERRITIN.
SUPFAMiSSF47240. SSF47240. 1 hit.
TIGRFAMsiTIGR00754. bfr. 1 hit.
PROSITEiPS00549. BACTERIOFERRITIN. 1 hit.
PS50905. FERRITIN_LIKE. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

O50171-1 [UniParc]FASTAAdd to Basket

« Hide

MKGKKSVISR LNKLLVGELV AADQYFVHSR MYQEWGLQKL YERIDHERMD    50
ELEHADLLIR RILFLEGTPD ISKRPGPNIG KDVPSMLKND LDYELAVIAE 100
LKEVIAHCEG PKRTMTAAAS CSTILEETEQ DHTLWLEQQL GLIARMGLQN 150
YIQSAAGDIA QGAS 164
Length:164
Mass (Da):18,491
Last modified:June 1, 1998 - v1
Checksum:i6B837DCAFCD72358
GO

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
AF001959 Genomic DNA. Translation: AAC91253.1.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
AF001959 Genomic DNA. Translation: AAC91253.1 .

3D structure databases

ProteinModelPortali O50171.
ModBasei Search...
MobiDBi Search...

Protocols and materials databases

Structural Biology Knowledgebase Search...

Family and domain databases

Gene3Di 1.20.1260.10. 1 hit.
InterProi IPR002024. Bacterioferritin.
IPR009040. Ferritin-like_diiron.
IPR009078. Ferritin-like_SF.
IPR012347. Ferritin-rel.
IPR008331. Ferritin_DPS_dom.
[Graphical view ]
Pfami PF00210. Ferritin. 1 hit.
[Graphical view ]
PIRSFi PIRSF002560. Bacterioferritin. 1 hit.
PRINTSi PR00601. BACFERRITIN.
SUPFAMi SSF47240. SSF47240. 1 hit.
TIGRFAMsi TIGR00754. bfr. 1 hit.
PROSITEi PS00549. BACTERIOFERRITIN. 1 hit.
PS50905. FERRITIN_LIKE. 1 hit.
[Graphical view ]
ProtoNeti Search...

Publicationsi

  1. "Evidence for two types of subunits in the bacterioferritin of Magnetospirillum magnetotacticum."
    Bertani L.E., Huang J.S., Weir B.A., Kirschvink J.L.
    Gene 201:31-36(1997) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA].
    Strain: MS-1.

Entry informationi

Entry nameiBFR1_MAGMG
AccessioniPrimary (citable) accession number: O50171
Entry historyi
Integrated into UniProtKB/Swiss-Prot: July 15, 1999
Last sequence update: June 1, 1998
Last modified: October 16, 2013
This is version 67 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Documents

  1. SIMILARITY comments
    Index of protein domains and families

External Data

Dasty 3

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