ID   HEMTB_CAMJE             Reviewed;         133 AA.
AC   Q9PIQ3; Q0PBR3;
DT   27-MAY-2002, integrated into UniProtKB/Swiss-Prot.
DT   01-OCT-2000, sequence version 1.
DT   28-JAN-2026, entry version 120.
DE   RecName: Full=Bacteriohemerythrin {ECO:0000255|HAMAP-Rule:MF_00556};
GN   OrderedLocusNames=Cj0241c;
OS   Campylobacter jejuni subsp. jejuni serotype O:2 (strain ATCC 700819 /
OS   NCTC 11168).
OC   Bacteria; Pseudomonadati; Campylobacterota; Epsilonproteobacteria;
OC   Campylobacterales; Campylobacteraceae; Campylobacter.
OX   NCBI_TaxID=192222;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 700819 / NCTC 11168;
RX   PubMed=10688204; DOI=10.1038/35001088;
RA   Parkhill J., Wren B.W., Mungall K.L., Ketley J.M., Churcher C.M.,
RA   Basham D., Chillingworth T., Davies R.M., Feltwell T., Holroyd S.,
RA   Jagels K., Karlyshev A.V., Moule S., Pallen M.J., Penn C.W., Quail M.A.,
RA   Rajandream M.A., Rutherford K.M., van Vliet A.H.M., Whitehead S.,
RA   Barrell B.G.;
RT   "The genome sequence of the food-borne pathogen Campylobacter jejuni
RT   reveals hypervariable sequences.";
RL   Nature 403:665-668(2000).
CC   -!- FUNCTION: Oxygen-binding protein. May be involved in a storage
CC       mechanism or for delivery to oxygen-requiring enzymes. The oxygen-
CC       binding site contains two iron atoms. {ECO:0000255|HAMAP-
CC       Rule:MF_00556}.
CC   -!- SUBUNIT: Monomer. {ECO:0000255|HAMAP-Rule:MF_00556}.
CC   -!- SIMILARITY: Belongs to the hemerythrin family. {ECO:0000255|HAMAP-
CC       Rule:MF_00556}.
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DR   EMBL; AL111168; CAL34396.1; -; Genomic_DNA.
DR   PIR; A81442; A81442.
DR   RefSeq; WP_002851900.1; NC_002163.1.
DR   RefSeq; YP_002343684.1; NC_002163.1.
DR   AlphaFoldDB; Q9PIQ3; -.
DR   SMR; Q9PIQ3; -.
DR   IntAct; Q9PIQ3; 54.
DR   STRING; 192222.Cj0241c; -.
DR   PaxDb; 192222-Cj0241c; -.
DR   DNASU; 904568; -.
DR   EnsemblBacteria; CAL34396; CAL34396; Cj0241c.
DR   GeneID; 904568; -.
DR   KEGG; cje:Cj0241c; -.
DR   PATRIC; fig|192222.6.peg.235; -.
DR   eggNOG; COG2703; Bacteria.
DR   HOGENOM; CLU_086902_3_2_7; -.
DR   OrthoDB; 9774644at2; -.
DR   Proteomes; UP000000799; Chromosome.
DR   GO; GO:0005506; F:iron ion binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0005344; F:oxygen carrier activity; IEA:UniProtKB-UniRule.
DR   CDD; cd12107; Hemerythrin; 1.
DR   Gene3D; 1.20.120.50; Hemerythrin-like; 1.
DR   HAMAP; MF_00556; Hemerythrin; 1.
DR   InterPro; IPR023504; Bacteriohemerythrin-like.
DR   InterPro; IPR016131; Haemerythrin_Fe_BS.
DR   InterPro; IPR050669; Hemerythrin.
DR   InterPro; IPR012312; Hemerythrin-like.
DR   InterPro; IPR035938; Hemerythrin-like_sf.
DR   InterPro; IPR012827; Hemerythrin_metal-bd.
DR   NCBIfam; TIGR02481; hemeryth_dom; 1.
DR   PANTHER; PTHR37164; BACTERIOHEMERYTHRIN; 1.
DR   PANTHER; PTHR37164:SF1; BACTERIOHEMERYTHRIN; 1.
DR   Pfam; PF01814; Hemerythrin; 1.
DR   SUPFAM; SSF47188; Hemerythrin-like; 1.
DR   PROSITE; PS00550; HEMERYTHRINS; 1.
PE   3: Inferred from homology;
KW   Iron; Metal-binding; Oxygen transport; Reference proteome; Transport.
FT   CHAIN           1..133
FT                   /note="Bacteriohemerythrin"
FT                   /id="PRO_0000191846"
FT   BINDING         19
FT                   /ligand="Fe cation"
FT                   /ligand_id="ChEBI:CHEBI:24875"
FT                   /ligand_label="1"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00556"
FT   BINDING         56
FT                   /ligand="Fe cation"
FT                   /ligand_id="ChEBI:CHEBI:24875"
FT                   /ligand_label="1"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00556"
FT   BINDING         60
FT                   /ligand="Fe cation"
FT                   /ligand_id="ChEBI:CHEBI:24875"
FT                   /ligand_label="1"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00556"
FT   BINDING         60
FT                   /ligand="Fe cation"
FT                   /ligand_id="ChEBI:CHEBI:24875"
FT                   /ligand_label="2"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00556"
FT   BINDING         75
FT                   /ligand="Fe cation"
FT                   /ligand_id="ChEBI:CHEBI:24875"
FT                   /ligand_label="2"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00556"
FT   BINDING         79
FT                   /ligand="Fe cation"
FT                   /ligand_id="ChEBI:CHEBI:24875"
FT                   /ligand_label="2"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00556"
FT   BINDING         115
FT                   /ligand="Fe cation"
FT                   /ligand_id="ChEBI:CHEBI:24875"
FT                   /ligand_label="2"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00556"
FT   BINDING         120
FT                   /ligand="Fe cation"
FT                   /ligand_id="ChEBI:CHEBI:24875"
FT                   /ligand_label="1"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00556"
FT   BINDING         120
FT                   /ligand="Fe cation"
FT                   /ligand_id="ChEBI:CHEBI:24875"
FT                   /ligand_label="2"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00556"
SQ   SEQUENCE   133 AA;  16189 MW;  1862870B17744C24 CRC64;
     MTYNEKIISM NNDLLDHQHK ELFEISKKLS LMNQRHVGTK ELKIVLRELL IMINRHFSDE
     EAFMREIEYP YINHHTRIHR KIILEIEEII ISEAKFVNIM TEKLNLVVQD FIFKHTAKED
     SKIVKYYEEK FKK
//