ID   HBB_HELMA               Reviewed;         146 AA.
AC   P68013; P07422;
DT   01-APR-1988, integrated into UniProtKB/Swiss-Prot.
DT   01-APR-1988, sequence version 1.
DT   03-AUG-2022, entry version 63.
DE   RecName: Full=Hemoglobin subunit beta;
DE   AltName: Full=Beta-globin;
DE   AltName: Full=Hemoglobin beta chain;
GN   Name=HBB;
OS   Helarctos malayanus (Malayan sun bear) (Ursus malayanus).
OC   Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia;
OC   Eutheria; Laurasiatheria; Carnivora; Caniformia; Ursidae; Helarctos.
OX   NCBI_TaxID=9634;
RN   [1]
RP   PROTEIN SEQUENCE.
RX   PubMed=3620104; DOI=10.1515/bchm3.1987.368.1.507;
RA   Hofmann O., Braunitzer G., Goltenboth R.;
RT   "The primary structure of the hemoglobin of Malayan sun bear (Helarctos
RT   malayanus, Carnivora) and structural comparison to other hemoglobin
RT   sequences.";
RL   Biol. Chem. Hoppe-Seyler 368:507-511(1987).
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}.
CC   ---------------------------------------------------------------------------
CC   Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC   Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC   ---------------------------------------------------------------------------
DR   PIR; B26539; B26539.
DR   AlphaFoldDB; P68013; -.
DR   SMR; P68013; -.
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   Acetylation; Direct protein sequencing; Heme; Iron; Metal-binding;
KW   Oxygen transport; Phosphoprotein; S-nitrosylation; Transport.
FT   CHAIN           1..146
FT                   /note="Hemoglobin subunit beta"
FT                   /id="PRO_0000053148"
FT   BINDING         63
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         92
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"
FT   MOD_RES         1
FT                   /note="N-acetylvaline"
FT                   /evidence="ECO:0000250|UniProtKB:P02086"
FT   MOD_RES         12
FT                   /note="Phosphothreonine"
FT                   /evidence="ECO:0000250|UniProtKB:P68871"
FT   MOD_RES         44
FT                   /note="Phosphoserine"
FT                   /evidence="ECO:0000250|UniProtKB:P68871"
FT   MOD_RES         59
FT                   /note="N6-acetyllysine"
FT                   /evidence="ECO:0000250|UniProtKB:P68871"
FT   MOD_RES         82
FT                   /note="N6-acetyllysine"
FT                   /evidence="ECO:0000250|UniProtKB:P68871"
FT   MOD_RES         93
FT                   /note="S-nitrosocysteine"
FT                   /evidence="ECO:0000250|UniProtKB:P68871"
FT   MOD_RES         144
FT                   /note="N6-acetyllysine"
FT                   /evidence="ECO:0000250|UniProtKB:P68871"
SQ   SEQUENCE   146 AA;  16009 MW;  41A93E4F3E98CE3C CRC64;
     VHLTGEEKSL VTGLWGKVNV DEVGGEALGR LLVVYPWTQR FFDSFGDLSS ADAIMNNPKV
     KAHGKKVLNS FSDGLKNLDN LKGTFAKLSE LHCDKLHVDP ENFKLLGNVL VCVLAHHFGK
     EFTPQVQAAY QKVVAGVANA LAHKYH