ID   HBB2_PANLE              Reviewed;         146 AA.
AC   P18988;
DT   01-NOV-1990, integrated into UniProtKB/Swiss-Prot.
DT   23-JAN-2007, sequence version 2.
DT   03-AUG-2022, entry version 101.
DE   RecName: Full=Hemoglobin subunit beta-2;
DE   AltName: Full=Beta-2-globin;
DE   AltName: Full=Hemoglobin beta-2 chain;
GN   Name=HBB2;
OS   Panthera leo (Lion).
OC   Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia;
OC   Eutheria; Laurasiatheria; Carnivora; Feliformia; Felidae; Pantherinae;
OC   Panthera.
OX   NCBI_TaxID=9689;
RN   [1]
RP   PROTEIN SEQUENCE.
RA   Jahan M., Ahmed A., Braunitzer G., Zaidi Z.H., Goeltenboth R.;
RT   "Carnivora: the primary structures of adult lion (Panthera leo)
RT   hemoglobins.";
RL   Z. Naturforsch. C 42:1465-1470(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}.
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DR   PIR; S03926; HBJL2.
DR   AlphaFoldDB; P18988; -.
DR   SMR; P18988; -.
DR   Proteomes; UP000694399; Unplaced.
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; Methylation;
KW   Oxygen transport; Phosphoprotein; Reference proteome; Transport.
FT   CHAIN           1..146
FT                   /note="Hemoglobin subunit beta-2"
FT                   /id="PRO_0000053053"
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         17
FT                   /note="N6-succinyllysine"
FT                   /evidence="ECO:0000250|UniProtKB:P02089"
FT   MOD_RES         44
FT                   /note="Phosphoserine"
FT                   /evidence="ECO:0000250|UniProtKB:P02089"
FT   MOD_RES         50
FT                   /note="Phosphoserine"
FT                   /evidence="ECO:0000250|UniProtKB:P02091"
FT   MOD_RES         59
FT                   /note="N6-succinyllysine"
FT                   /evidence="ECO:0000250|UniProtKB:P02089"
FT   MOD_RES         104
FT                   /note="Asymmetric dimethylarginine"
FT                   /evidence="ECO:0000250|UniProtKB:P02089"
SQ   SEQUENCE   146 AA;  15928 MW;  007366CE9CBD8D2D CRC64;
     GFLSAEEKGL VNGLWSKVNV DEVGGEALGR LLVVYPWTQR FFQSFGDLSS ADAIMSNAKV
     KAHGKKVLNS FSDGLKNIDD LKGAFAKLSE LHCDKLHVDP ENFRLLGNVL VCVLAHHFGH
     EFNPQVQAAF QKVVAGVASA LAHKYH