ID   BFR_PSEPU               Reviewed;         154 AA.
AC   P77930;
DT   01-NOV-1997, integrated into UniProtKB/Swiss-Prot.
DT   01-FEB-1997, sequence version 1.
DT   24-JAN-2024, entry version 99.
DE   RecName: Full=Bacterioferritin;
DE            Short=BFR;
DE            EC=1.16.3.1;
GN   Name=bfr;
OS   Pseudomonas putida (Arthrobacter siderocapsulatus).
OC   Bacteria; Pseudomonadota; Gammaproteobacteria; Pseudomonadales;
OC   Pseudomonadaceae; Pseudomonas.
OX   NCBI_TaxID=303;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC   STRAIN=Corvallis;
RX   PubMed=9358059; DOI=10.1016/s0378-1119(97)00370-3;
RA   Kim Y.C., Miller C.D., Anderson A.J.;
RT   "Identification of adjacent genes encoding the major catalase and a
RT   bacterioferritin from the plant-beneficial bacterium Pseudomonas putida.";
RL   Gene 199:219-224(1997).
CC   -!- FUNCTION: Iron-storage protein, whose ferroxidase center binds Fe(2+)
CC       ions, oxidizes them by dioxygen to Fe(3+), and participates in the
CC       subsequent Fe(3+) oxide mineral core formation within the central
CC       cavity of the protein complex. {ECO:0000250}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=4 Fe(2+) + 4 H(+) + O2 = 4 Fe(3+) + 2 H2O;
CC         Xref=Rhea:RHEA:11148, ChEBI:CHEBI:15377, ChEBI:CHEBI:15378,
CC         ChEBI:CHEBI:15379, ChEBI:CHEBI:29033, ChEBI:CHEBI:29034; EC=1.16.3.1;
CC   -!- COFACTOR:
CC       Name=heme b; Xref=ChEBI:CHEBI:60344; Evidence={ECO:0000305};
CC       Note=Binds 1 heme b (iron(II)-protoporphyrin IX) group per dimer.
CC       {ECO:0000305};
CC   -!- COFACTOR:
CC       Name=Fe cation; Xref=ChEBI:CHEBI:24875; Evidence={ECO:0000250};
CC       Note=Binds 2 iron ions per subunit. The catalytic dinuclear iron-
CC       binding site within each subunit is known as the ferroxidase center.
CC       {ECO:0000250};
CC   -!- SUBUNIT: Homooligomer of 24 subunits, arranged as 12 dimers, that are
CC       packed together to form an approximately spherical molecule with a
CC       central cavity, in which large amounts of iron can be deposited.
CC       {ECO:0000250}.
CC   -!- SIMILARITY: Belongs to the bacterioferritin family. {ECO:0000305}.
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DR   EMBL; U66717; AAB88220.1; -; Genomic_DNA.
DR   RefSeq; WP_016715322.1; NZ_JADTWD010000025.1.
DR   AlphaFoldDB; P77930; -.
DR   SMR; P77930; -.
DR   GeneID; 83667750; -.
DR   eggNOG; COG2193; Bacteria.
DR   OrthoDB; 9800505at2; -.
DR   GO; GO:0008199; F:ferric iron binding; IEA:InterPro.
DR   GO; GO:0004322; F:ferroxidase activity; IEA:UniProtKB-EC.
DR   GO; GO:0006879; P:intracellular iron ion homeostasis; IEA:UniProtKB-KW.
DR   GO; GO:0006826; P:iron ion transport; IEA:InterPro.
DR   CDD; cd00907; Bacterioferritin; 1.
DR   Gene3D; 1.20.1260.10; -; 1.
DR   InterPro; IPR002024; Bacterioferritin.
DR   InterPro; IPR012347; Ferritin-like.
DR   InterPro; IPR009040; Ferritin-like_diiron.
DR   InterPro; IPR009078; Ferritin-like_SF.
DR   InterPro; IPR008331; Ferritin_DPS_dom.
DR   NCBIfam; TIGR00754; bfr; 1.
DR   PANTHER; PTHR30295; BACTERIOFERRITIN; 1.
DR   PANTHER; PTHR30295:SF9; BACTERIOFERRITIN; 1.
DR   Pfam; PF00210; Ferritin; 1.
DR   PIRSF; PIRSF002560; Bacterioferritin; 1.
DR   PRINTS; PR00601; BACFERRITIN.
DR   SUPFAM; SSF47240; Ferritin-like; 1.
DR   PROSITE; PS00549; BACTERIOFERRITIN; 1.
DR   PROSITE; PS50905; FERRITIN_LIKE; 1.
PE   3: Inferred from homology;
KW   Heme; Iron; Iron storage; Metal-binding; Oxidoreductase.
FT   CHAIN           1..154
FT                   /note="Bacterioferritin"
FT                   /id="PRO_0000192610"
FT   DOMAIN          1..145
FT                   /note="Ferritin-like diiron"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00085"
FT   BINDING         18
FT                   /ligand="Fe cation"
FT                   /ligand_id="ChEBI:CHEBI:24875"
FT                   /ligand_label="1"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00085"
FT   BINDING         48
FT                   /ligand="heme b"
FT                   /ligand_id="ChEBI:CHEBI:60344"
FT                   /ligand_note="ligand shared between dimeric partners"
FT                   /ligand_part="Fe"
FT                   /ligand_part_id="ChEBI:CHEBI:18248"
FT                   /note="axial binding residue"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00085"
FT   BINDING         51
FT                   /ligand="Fe cation"
FT                   /ligand_id="ChEBI:CHEBI:24875"
FT                   /ligand_label="1"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00085"
FT   BINDING         51
FT                   /ligand="Fe cation"
FT                   /ligand_id="ChEBI:CHEBI:24875"
FT                   /ligand_label="2"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00085"
FT   BINDING         54
FT                   /ligand="Fe cation"
FT                   /ligand_id="ChEBI:CHEBI:24875"
FT                   /ligand_label="1"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00085"
FT   BINDING         93
FT                   /ligand="Fe cation"
FT                   /ligand_id="ChEBI:CHEBI:24875"
FT                   /ligand_label="2"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00085"
FT   BINDING         127
FT                   /ligand="Fe cation"
FT                   /ligand_id="ChEBI:CHEBI:24875"
FT                   /ligand_label="1"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00085"
FT   BINDING         127
FT                   /ligand="Fe cation"
FT                   /ligand_id="ChEBI:CHEBI:24875"
FT                   /ligand_label="2"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00085"
FT   BINDING         130
FT                   /ligand="Fe cation"
FT                   /ligand_id="ChEBI:CHEBI:24875"
FT                   /ligand_label="2"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00085"
SQ   SEQUENCE   154 AA;  18001 MW;  336D8BFA66128974 CRC64;
     MQGHPDVINY LVTLLKGELA ARDQYFIHSR MYEDWGLTKL YERINHEMEE ETQHADALMR
     RILMLEGTPD MRADDLEVGS TVPEMIEADL KLEYKVRGAL CKGIELCELH KDYISRDILR
     AQLADTEEDH TYWLEKQQGL IKAIGLENYL QSQM
//