ID   HBA_APUAP               Reviewed;         142 AA.
AC   P15162;
DT   01-APR-1990, integrated into UniProtKB/Swiss-Prot.
DT   23-JAN-2007, sequence version 2.
DT   03-AUG-2022, entry version 93.
DE   RecName: Full=Hemoglobin subunit alpha-A;
DE   AltName: Full=Alpha-A-globin;
DE   AltName: Full=Hemoglobin alpha-A chain;
GN   Name=HBAA;
OS   Apus apus (Common swift).
OC   Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi;
OC   Archelosauria; Archosauria; Dinosauria; Saurischia; Theropoda;
OC   Coelurosauria; Aves; Neognathae; Caprimulgimorphae; Apodiformes; Apodidae;
OC   Apodinae; Apus.
OX   NCBI_TaxID=8895;
RN   [1]
RP   PROTEIN SEQUENCE OF 2-142.
RX   PubMed=2610936; DOI=10.1515/bchm3.1989.370.2.1197;
RA   Nothum R., Weber R.E., Kosters J., Schneeganss D., Braunitzer G.;
RT   "Amino-acid sequences and functional differentiation of hemoglobins A and D
RT   from swift (Apus apus, Apodiformes).";
RL   Biol. Chem. Hoppe-Seyler 370:1197-1207(1989).
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; S07479; HASIA.
DR   AlphaFoldDB; P15162; -.
DR   SMR; P15162; -.
DR   GO; GO:0005833; C:hemoglobin complex; IEA:InterPro.
DR   GO; GO:0020037; F:heme binding; IEA:InterPro.
DR   GO; GO:0005506; F:iron ion binding; IEA:InterPro.
DR   GO; GO:0019825; F:oxygen binding; IEA:InterPro.
DR   GO; GO:0005344; F:oxygen carrier activity; IEA:UniProtKB-KW.
DR   CDD; cd08927; Hb-alpha-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; IPR002338; Hemoglobin_a-typ.
DR   InterPro; IPR002339; Hemoglobin_pi.
DR   Pfam; PF00042; Globin; 1.
DR   PRINTS; PR00612; ALPHAHAEM.
DR   PRINTS; PR00815; PIHAEM.
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   INIT_MET        1
FT                   /note="Removed"
FT                   /evidence="ECO:0000250"
FT   CHAIN           2..142
FT                   /note="Hemoglobin subunit alpha-A"
FT                   /id="PRO_0000052556"
FT   BINDING         59
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         88
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   142 AA;  15018 MW;  03BD4AF3F923F072 CRC64;
     MVLSAADKTN VKGVFAKIGG QAEALGGEAL ARMFAAYPPT KTYFPHFDLS PGSAQVKAHG
     KKVASALVEA ANNIDDIAGA LSKLSDLHAQ KLRVDPVNFK LLGHCFLVVV AIHHPSVLTP
     EVHASLDKFL CAVATVLTAK YR