ID   HBAT_HORSE              Reviewed;         142 AA.
AC   P06714;
DT   01-JAN-1988, integrated into UniProtKB/Swiss-Prot.
DT   23-JAN-2007, sequence version 2.
DT   03-AUG-2022, entry version 105.
DE   RecName: Full=Hemoglobin subunit theta-1;
DE   AltName: Full=Hemoglobin theta-1 chain;
DE   AltName: Full=Theta-1-globin;
GN   Name=HBQ1; Synonyms=PSI ALPHA, THETA1;
OS   Equus caballus (Horse).
OC   Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia;
OC   Eutheria; Laurasiatheria; Perissodactyla; Equidae; Equus.
OX   NCBI_TaxID=9796;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX   PubMed=3657962; DOI=10.1038/329465a0;
RA   Clegg J.B.;
RT   "Can the product of the theta gene be a real globin?";
RL   Nature 329:465-467(1987).
CC   -!- SIMILARITY: Belongs to the globin family. {ECO:0000255|PROSITE-
CC       ProRule:PRU00238}.
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DR   EMBL; Y00284; CAA68394.1; -; Genomic_DNA.
DR   PIR; S07342; S07342.
DR   AlphaFoldDB; P06714; -.
DR   SMR; P06714; -.
DR   STRING; 9796.ENSECAP00000041983; -.
DR   PaxDb; P06714; -.
DR   InParanoid; P06714; -.
DR   Proteomes; UP000002281; Unplaced.
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   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   3: Inferred from homology;
KW   Heme; Iron; Metal-binding; Oxygen transport; Reference proteome; Transport.
FT   CHAIN           1..142
FT                   /note="Hemoglobin subunit theta-1"
FT                   /id="PRO_0000052845"
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;  15554 MW;  871608E77EF7D99F CRC64;
     MALAAADRAT VRALWKKMGS NVGVYATEAL ERMFLGFPST TTYFLHLDLS LGSTQVKAHG
     QKVADALTLA VEHLEDLPRA LSALRHRHVR ELRVDPASFQ LLGHCLLVTP ARHFPGDFSP
     TLHASLVKFL SHVISALASD CR