ID BFR_MYCPA Reviewed; 159 AA.
AC P45430;
DT 01-NOV-1995, integrated into UniProtKB/Swiss-Prot.
DT 15-MAR-2004, sequence version 2.
DT 27-MAR-2024, entry version 135.
DE RecName: Full=Bacterioferritin;
DE Short=BFR;
DE EC=1.16.3.1;
DE AltName: Full=Antigen D;
GN Name=bfr; Synonyms=bfrA; OrderedLocusNames=MAP_1595;
OS Mycolicibacterium paratuberculosis (strain ATCC BAA-968 / K-10)
OS (Mycobacterium paratuberculosis).
OC Bacteria; Actinomycetota; Actinomycetes; Mycobacteriales; Mycobacteriaceae;
OC Mycobacterium; Mycobacterium avium complex (MAC).
OX NCBI_TaxID=262316;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC BAA-968 / K-10;
RX PubMed=16116077; DOI=10.1073/pnas.0505662102;
RA Li L., Bannantine J.P., Zhang Q., Amonsin A., May B.J., Alt D., Banerji N.,
RA Kanjilal S., Kapur V.;
RT "The complete genome sequence of Mycobacterium avium subspecies
RT paratuberculosis.";
RL Proc. Natl. Acad. Sci. U.S.A. 102:12344-12349(2005).
RN [2]
RP PROTEIN SEQUENCE OF 1-42.
RC STRAIN=C-286;
RX PubMed=1761687; DOI=10.1128/jcm.29.8.1652-1658.1991;
RA Brooks B.W., Young N.M., Watson D.C., Robertson R.H., Sugden E.A.,
RA Nielsen K.H., Becker S.A.;
RT "Mycobacterium paratuberculosis antigen D: characterization and evidence
RT that it is a bacterioferritin.";
RL J. Clin. Microbiol. 29:1652-1658(1991).
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:0000250};
CC Note=Binds 1 heme b (iron(II)-protoporphyrin IX) group per dimer.
CC {ECO:0000250};
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; AE016958; AAS03912.1; -; Genomic_DNA.
DR PIR; A44893; A44893.
DR RefSeq; WP_003876561.1; NZ_CP106873.1.
DR AlphaFoldDB; P45430; -.
DR SMR; P45430; -.
DR STRING; 262316.MAP_1595; -.
DR GeneID; 75270206; -.
DR KEGG; mpa:MAP_1595; -.
DR eggNOG; COG2193; Bacteria.
DR HOGENOM; CLU_104506_2_0_11; -.
DR Proteomes; UP000000580; Chromosome.
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:SF0; 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 1: Evidence at protein level;
KW Direct protein sequencing; Heme; Iron; Iron storage; Metal-binding;
KW Oxidoreductase; Reference proteome.
FT CHAIN 1..159
FT /note="Bacterioferritin"
FT /id="PRO_0000192602"
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 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 52
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 54
FT /ligand="Fe cation"
FT /ligand_id="ChEBI:CHEBI:24875"
FT /ligand_label="1"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00085"
FT BINDING 94
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 159 AA; 18479 MW; 65BEF1425437EEBA CRC64;
MQGDPEVLRL LNEQLTSELT AINQYFLHSK MQDNWGFTEL AEHTRAESFD EMRHAEAITD
RILLLDGLPN YQRLFSLRIG QTLREQFEAD LAIEYEVMDR LKPAIILCRE KQDSTTATLF
EQIVADEEKH IDYLETQLEL MDKLGVELYS AQCVSRPPS
//
