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HEMTB_LINRE
ID   HEMTB_LINRE             Reviewed;         117 AA.
AC   P23544; Q7M411;
DT   01-NOV-1991, integrated into UniProtKB/Swiss-Prot.
DT   13-APR-2004, sequence version 2.
DT   03-AUG-2022, entry version 77.
DE   RecName: Full=Hemerythrin subunit beta;
OS   Lingula reevii (Inarticulated brachiopod).
OC   Eukaryota; Metazoa; Spiralia; Lophotrochozoa; Brachiopoda; Linguliformea;
OC   Lingulata; Lingulida; Linguloidea; Lingulidae; Lingula.
OX   NCBI_TaxID=7575;
RN   [1]
RP   PROTEIN SEQUENCE.
RX   PubMed=7947959; DOI=10.1016/0167-4838(94)90114-7;
RA   Negri A., Tedeschi G., Bonomi F., Zhang J.-H., Kurtz D.M. Jr.;
RT   "Amino-acid sequences of the alpha- and beta-subunits of hemerythrin from
RT   Lingula reevii.";
RL   Biochim. Biophys. Acta 1208:277-285(1994).
RN   [2]
RP   PROTEIN SEQUENCE OF 1-24.
RX   PubMed=1892823; DOI=10.1021/bi00102a001;
RA   Zhang J.-H., Kurtz D.M. Jr.;
RT   "Two distinct subunits of hemerythrin from the brachiopod Lingula reevii:
RT   an apparent requirement for cooperativity in O2 binding.";
RL   Biochemistry 30:9121-9124(1991).
CC   -!- FUNCTION: Hemerythrin is a respiratory protein in blood cells of
CC       certain marine worms. The oxygen-binding site in each chain contains
CC       two iron atoms.
CC   -!- SUBUNIT: Octamer composed of two types of chains: alpha and beta.
CC   -!- SIMILARITY: Belongs to the hemerythrin family. {ECO:0000305}.
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DR   PIR; S50178; S50178.
DR   AlphaFoldDB; P23544; -.
DR   SMR; P23544; -.
DR   GO; GO:0005506; F:iron ion binding; IEA:InterPro.
DR   GO; GO:0005344; F:oxygen carrier activity; IEA:UniProtKB-KW.
DR   Gene3D; 1.20.120.50; -; 1.
DR   InterPro; IPR002063; Haemerythrin.
DR   InterPro; IPR016131; Haemerythrin_Fe_BS.
DR   InterPro; IPR035938; Hemerythrin-like_sf.
DR   InterPro; IPR012827; Hemerythrin_metal-bd.
DR   PIRSF; PIRSF002033; Hemerythrin; 1.
DR   PRINTS; PR00186; HEMERYTHRIN.
DR   SUPFAM; SSF47188; SSF47188; 1.
DR   TIGRFAMs; TIGR02481; hemeryth_dom; 1.
DR   TIGRFAMs; TIGR00058; Hemerythrin; 1.
DR   PROSITE; PS00550; HEMERYTHRINS; 1.
PE   1: Evidence at protein level;
KW   Direct protein sequencing; Iron; Metal-binding; Oxygen transport;
KW   Transport.
FT   CHAIN           1..117
FT                   /note="Hemerythrin subunit beta"
FT                   /id="PRO_0000191829"
FT   BINDING         24
FT                   /ligand="Fe cation"
FT                   /ligand_id="ChEBI:CHEBI:24875"
FT                   /ligand_label="1"
FT                   /evidence="ECO:0000250|UniProtKB:P02244"
FT   BINDING         53
FT                   /ligand="Fe cation"
FT                   /ligand_id="ChEBI:CHEBI:24875"
FT                   /ligand_label="1"
FT                   /evidence="ECO:0000250|UniProtKB:P02244"
FT   BINDING         57
FT                   /ligand="Fe cation"
FT                   /ligand_id="ChEBI:CHEBI:24875"
FT                   /ligand_label="1"
FT                   /evidence="ECO:0000250|UniProtKB:P02244"
FT   BINDING         57
FT                   /ligand="Fe cation"
FT                   /ligand_id="ChEBI:CHEBI:24875"
FT                   /ligand_label="2"
FT                   /evidence="ECO:0000250|UniProtKB:P02244"
FT   BINDING         72
FT                   /ligand="Fe cation"
FT                   /ligand_id="ChEBI:CHEBI:24875"
FT                   /ligand_label="2"
FT                   /evidence="ECO:0000250|UniProtKB:P02244"
FT   BINDING         76
FT                   /ligand="Fe cation"
FT                   /ligand_id="ChEBI:CHEBI:24875"
FT                   /ligand_label="2"
FT                   /evidence="ECO:0000250|UniProtKB:P02244"
FT   BINDING         105
FT                   /ligand="Fe cation"
FT                   /ligand_id="ChEBI:CHEBI:24875"
FT                   /ligand_label="2"
FT                   /evidence="ECO:0000250|UniProtKB:P02244"
FT   BINDING         110
FT                   /ligand="Fe cation"
FT                   /ligand_id="ChEBI:CHEBI:24875"
FT                   /ligand_label="1"
FT                   /evidence="ECO:0000250|UniProtKB:P02244"
FT   BINDING         110
FT                   /ligand="Fe cation"
FT                   /ligand_id="ChEBI:CHEBI:24875"
FT                   /ligand_label="2"
FT                   /evidence="ECO:0000250|UniProtKB:P02244"
SQ   SEQUENCE   117 AA;  13518 MW;  FF1DAA087A3D200C CRC64;
     MKVPAPYAWN SDFATTYENI DSEHRTLFNG LFALAEFNTL TQLNAAIEVF TLHFHDEQGQ
     MIRSNYVNTK EHTDIHNGFM DVMRGWRSPV PQQDLLAGMA WLANHIPTED FKYKGKL
 
 
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