ID   HBB_HETPO               Reviewed;         141 AA.
AC   P02143;
DT   21-JUL-1986, integrated into UniProtKB/Swiss-Prot.
DT   21-JUL-1986, sequence version 1.
DT   03-AUG-2022, entry version 86.
DE   RecName: Full=Hemoglobin subunit beta;
DE   AltName: Full=Beta-globin;
DE   AltName: Full=Hemoglobin beta chain;
GN   Name=HBB;
OS   Heterodontus portusjacksoni (Port Jackson shark).
OC   Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Chondrichthyes;
OC   Elasmobranchii; Galeomorphii; Heterodontoidea; Heterodontiformes;
OC   Heterodontidae; Heterodontus.
OX   NCBI_TaxID=7793;
RN   [1]
RP   PROTEIN SEQUENCE.
RX   PubMed=614004; DOI=10.1071/bi9770487;
RA   Fisher W.K., Nash A.R., Thompson E.O.P.;
RT   "Haemoglobins of the shark, Heterodontus portusjacksoni. III. Amino acid
RT   sequence of the beta-chain.";
RL   Aust. J. Biol. Sci. 30:487-506(1977).
CC   -!- FUNCTION: Involved in oxygen transport from the lung to the various
CC       peripheral tissues.
CC   -!- SUBUNIT: Heterotetramer of two alpha chains and two beta chains.
CC   -!- TISSUE SPECIFICITY: Red blood cells.
CC   -!- SIMILARITY: Belongs to the globin family. {ECO:0000255|PROSITE-
CC       ProRule:PRU00238}.
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DR   PIR; A02463; HBRKJ.
DR   AlphaFoldDB; P02143; -.
DR   SMR; P02143; -.
DR   GO; GO:0005833; C:hemoglobin complex; IEA:InterPro.
DR   GO; GO:0020037; F:heme binding; IEA:InterPro.
DR   GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR   GO; GO:0019825; F:oxygen binding; IEA:InterPro.
DR   GO; GO:0005344; F:oxygen carrier activity; IEA:UniProtKB-KW.
DR   CDD; cd08925; Hb-beta-like; 1.
DR   Gene3D; 1.10.490.10; -; 1.
DR   InterPro; IPR000971; Globin.
DR   InterPro; IPR009050; Globin-like_sf.
DR   InterPro; IPR012292; Globin/Proto.
DR   InterPro; IPR002337; Hemoglobin_b.
DR   Pfam; PF00042; Globin; 1.
DR   PRINTS; PR00814; BETAHAEM.
DR   SUPFAM; SSF46458; SSF46458; 1.
DR   PROSITE; PS01033; GLOBIN; 1.
PE   1: Evidence at protein level;
KW   Direct protein sequencing; Heme; Iron; Metal-binding; Oxygen transport;
KW   Transport.
FT   CHAIN           1..141
FT                   /note="Hemoglobin subunit beta"
FT                   /id="PRO_0000052972"
FT   BINDING         58
FT                   /ligand="heme b"
FT                   /ligand_id="ChEBI:CHEBI:60344"
FT                   /ligand_part="Fe"
FT                   /ligand_part_id="ChEBI:CHEBI:18248"
FT                   /note="distal binding residue"
FT   BINDING         87
FT                   /ligand="heme b"
FT                   /ligand_id="ChEBI:CHEBI:60344"
FT                   /ligand_part="Fe"
FT                   /ligand_part_id="ChEBI:CHEBI:18248"
FT                   /note="proximal binding residue"
SQ   SEQUENCE   141 AA;  16012 MW;  1744CBB71EBF402F CRC64;
     VHWSEVELHE ITTTWKSIDK HSLGAKALAR MFIVYPWTTR YFGNLKEFTA CSYGVKEHAK
     KVTGALGVAV THLGDVKSQF TDLSKKHAEE LHVDVESFKL LAKCFVVELG ILLKDKFAPQ
     TQAIWEKYFG VVVDAISKEY H