ID   HBA3_GORGO              Reviewed;         141 AA.
AC   P01934;
DT   21-JUL-1986, integrated into UniProtKB/Swiss-Prot.
DT   21-JUL-1986, sequence version 1.
DT   03-AUG-2022, entry version 89.
DE   RecName: Full=Hemoglobin subunit alpha-3;
DE   AltName: Full=Alpha-3-globin;
DE   AltName: Full=Hemoglobin alpha-2 chain;
OS   Gorilla gorilla gorilla (Western lowland gorilla).
OC   Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia;
OC   Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae;
OC   Gorilla.
OX   NCBI_TaxID=9595;
RN   [1]
RP   PROTEIN SEQUENCE.
RX   PubMed=4630856; DOI=10.1016/s0021-9258(19)44362-7;
RA   Boyer S.H., Noyes A.N., Boyer M.L., Marr K.;
RT   "Hemoglobin alpha-3 chains in apes. Primary structures and the presumptive
RT   nature of back mutation in a normally silent gene.";
RL   J. Biol. Chem. 248:992-1003(1973).
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   -!- MISCELLANEOUS: Two kinds of alpha-3 chains were found in one gorilla.
CC       An Asx replaces one Ser (at position 131, 133, or 138) in the tryptic
CC       peptide comprising residues 128-139.
CC   -!- SIMILARITY: Belongs to the globin family. {ECO:0000255|PROSITE-
CC       ProRule:PRU00238}.
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DR   PIR; A02258; HAGO3.
DR   Proteomes; UP000001519; Unplaced.
DR   GO; GO:0031838; C:haptoglobin-hemoglobin complex; IBA:GO_Central.
DR   GO; GO:0005833; C:hemoglobin complex; IBA:GO_Central.
DR   GO; GO:0020037; F:heme binding; IBA:GO_Central.
DR   GO; GO:0005506; F:iron ion binding; IEA:InterPro.
DR   GO; GO:0043177; F:organic acid binding; IBA:GO_Central.
DR   GO; GO:0019825; F:oxygen binding; IBA:GO_Central.
DR   GO; GO:0005344; F:oxygen carrier activity; IBA:GO_Central.
DR   GO; GO:0098869; P:cellular oxidant detoxification; IEA:GOC.
DR   GO; GO:0042744; P:hydrogen peroxide catabolic process; IBA:GO_Central.
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   Reference proteome; Transport.
FT   CHAIN           1..141
FT                   /note="Hemoglobin subunit alpha-3"
FT                   /id="PRO_0000052643"
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;  15238 MW;  26DB4610C73E32E9 CRC64;
     VLSPADKTNV KAAWGKVGAH AGDYGAEALE RMFLSFPTTK TYFPHFDLSH GSAZVKGHGK
     KVAKALTBAV ZHLDDMPNAL SALSBLHAHK LRVBPVBFKL LNHCLLVTLA ABFPSZFTPA
     VHASVDKFLA SVSTVLTSKY R