ID   F7BAA0_HORSE            Unreviewed;       268 AA.
AC   F7BAA0;
DT   27-JUL-2011, integrated into UniProtKB/TrEMBL.
DT   13-SEP-2023, sequence version 3.
DT   27-MAR-2024, entry version 77.
DE   RecName: Full=Glutathione S-transferase omega {ECO:0000256|RuleBase:RU368071};
DE            Short=GSTO {ECO:0000256|RuleBase:RU368071};
DE            EC=1.20.4.2 {ECO:0000256|RuleBase:RU368071};
DE            EC=1.8.5.1 {ECO:0000256|RuleBase:RU368071};
DE            EC=2.5.1.18 {ECO:0000256|RuleBase:RU368071};
DE   AltName: Full=Glutathione-dependent dehydroascorbate reductase {ECO:0000256|RuleBase:RU368071};
DE   AltName: Full=Monomethylarsonic acid reductase {ECO:0000256|RuleBase:RU368071};
GN   Name=GSTO1 {ECO:0000313|Ensembl:ENSECAP00000009471.3};
OS   Equus caballus (Horse).
OC   Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia;
OC   Eutheria; Laurasiatheria; Perissodactyla; Equidae; Equus.
OX   NCBI_TaxID=9796 {ECO:0000313|Ensembl:ENSECAP00000009471.3, ECO:0000313|Proteomes:UP000002281};
RN   [1] {ECO:0000313|Ensembl:ENSECAP00000009471.3, ECO:0000313|Proteomes:UP000002281}
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=Thoroughbred {ECO:0000313|Ensembl:ENSECAP00000009471.3,
RC   ECO:0000313|Proteomes:UP000002281};
RX   PubMed=19892987; DOI=10.1126/science.1178158;
RG   Broad Institute Genome Sequencing Platform;
RG   Broad Institute Whole Genome Assembly Team;
RA   Wade C.M., Giulotto E., Sigurdsson S., Zoli M., Gnerre S., Imsland F.,
RA   Lear T.L., Adelson D.L., Bailey E., Bellone R.R., Bloecker H., Distl O.,
RA   Edgar R.C., Garber M., Leeb T., Mauceli E., MacLeod J.N., Penedo M.C.T.,
RA   Raison J.M., Sharpe T., Vogel J., Andersson L., Antczak D.F., Biagi T.,
RA   Binns M.M., Chowdhary B.P., Coleman S.J., Della Valle G., Fryc S.,
RA   Guerin G., Hasegawa T., Hill E.W., Jurka J., Kiialainen A., Lindgren G.,
RA   Liu J., Magnani E., Mickelson J.R., Murray J., Nergadze S.G., Onofrio R.,
RA   Pedroni S., Piras M.F., Raudsepp T., Rocchi M., Roeed K.H., Ryder O.A.,
RA   Searle S., Skow L., Swinburne J.E., Syvaenen A.C., Tozaki T., Valberg S.J.,
RA   Vaudin M., White J.R., Zody M.C., Lander E.S., Lindblad-Toh K.;
RT   "Genome sequence, comparative analysis, and population genetics of the
RT   domestic horse.";
RL   Science 326:865-867(2009).
RN   [2] {ECO:0000313|Ensembl:ENSECAP00000009471.3}
RP   IDENTIFICATION.
RC   STRAIN=Thoroughbred {ECO:0000313|Ensembl:ENSECAP00000009471.3};
RG   Ensembl;
RL   Submitted (NOV-2023) to UniProtKB.
CC   -!- FUNCTION: Exhibits glutathione-dependent thiol transferase activity.
CC       Has high dehydroascorbate reductase activity and may contribute to the
CC       recycling of ascorbic acid. Participates in the biotransformation of
CC       inorganic arsenic and reduces monomethylarsonic acid (MMA).
CC       {ECO:0000256|RuleBase:RU368071}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=2 glutathione + H(+) + methylarsonate = glutathione disulfide
CC         + H2O + methylarsonous acid; Xref=Rhea:RHEA:15969, ChEBI:CHEBI:15377,
CC         ChEBI:CHEBI:15378, ChEBI:CHEBI:17826, ChEBI:CHEBI:33409,
CC         ChEBI:CHEBI:57925, ChEBI:CHEBI:58297; EC=1.20.4.2;
CC         Evidence={ECO:0000256|ARBA:ARBA00001437,
CC         ECO:0000256|RuleBase:RU368071};
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=2 glutathione + L-dehydroascorbate = glutathione disulfide +
CC         L-ascorbate; Xref=Rhea:RHEA:24424, ChEBI:CHEBI:38290,
CC         ChEBI:CHEBI:57925, ChEBI:CHEBI:58297, ChEBI:CHEBI:58539; EC=1.8.5.1;
CC         Evidence={ECO:0000256|ARBA:ARBA00000509,
CC         ECO:0000256|RuleBase:RU368071};
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=glutathione + RX = a halide anion + an S-substituted
CC         glutathione + H(+); Xref=Rhea:RHEA:16437, ChEBI:CHEBI:15378,
CC         ChEBI:CHEBI:16042, ChEBI:CHEBI:17792, ChEBI:CHEBI:57925,
CC         ChEBI:CHEBI:90779; EC=2.5.1.18;
CC         Evidence={ECO:0000256|ARBA:ARBA00000710,
CC         ECO:0000256|RuleBase:RU368071};
CC   -!- SIMILARITY: Belongs to the GST superfamily. Omega family.
CC       {ECO:0000256|ARBA:ARBA00011067, ECO:0000256|RuleBase:RU368071}.
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DR   AlphaFoldDB; F7BAA0; -.
DR   Ensembl; ENSECAT00000012039.4; ENSECAP00000009471.3; ENSECAG00000011560.4.
DR   GeneTree; ENSGT00940000155351; -.
DR   HOGENOM; CLU_011226_9_2_1; -.
DR   OMA; ADHYSHR; -.
DR   TreeFam; TF105325; -.
DR   Proteomes; UP000002281; Chromosome 1.
DR   Bgee; ENSECAG00000011560; Expressed in epithelium of bronchus and 23 other cell types or tissues.
DR   ExpressionAtlas; F7BAA0; baseline.
DR   GO; GO:0005737; C:cytoplasm; IEA:InterPro.
DR   GO; GO:0045174; F:glutathione dehydrogenase (ascorbate) activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0004364; F:glutathione transferase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0050610; F:methylarsonate reductase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0006749; P:glutathione metabolic process; IEA:UniProtKB-UniRule.
DR   CDD; cd03184; GST_C_Omega; 1.
DR   CDD; cd03055; GST_N_Omega; 1.
DR   Gene3D; 1.20.1050.10; -; 1.
DR   Gene3D; 3.40.30.10; Glutaredoxin; 1.
DR   InterPro; IPR010987; Glutathione-S-Trfase_C-like.
DR   InterPro; IPR036282; Glutathione-S-Trfase_C_sf.
DR   InterPro; IPR004045; Glutathione_S-Trfase_N.
DR   InterPro; IPR004046; GST_C.
DR   InterPro; IPR005442; GST_omega.
DR   InterPro; IPR045073; Omega/Tau-like.
DR   InterPro; IPR036249; Thioredoxin-like_sf.
DR   PANTHER; PTHR43968; -; 1.
DR   PANTHER; PTHR43968:SF5; GLUTATHIONE S-TRANSFERASE OMEGA-1; 1.
DR   Pfam; PF00043; GST_C; 1.
DR   Pfam; PF13417; GST_N_3; 1.
DR   PRINTS; PR01625; GSTRNSFRASEO.
DR   SFLD; SFLDG01152; Main.3:_Omega-_and_Tau-like; 1.
DR   SFLD; SFLDG00358; Main_(cytGST); 1.
DR   SUPFAM; SSF47616; GST C-terminal domain-like; 1.
DR   SUPFAM; SSF52833; Thioredoxin-like; 1.
DR   PROSITE; PS50405; GST_CTER; 1.
DR   PROSITE; PS50404; GST_NTER; 1.
PE   1: Evidence at protein level;
KW   Oxidoreductase {ECO:0000256|ARBA:ARBA00023002,
KW   ECO:0000256|RuleBase:RU368071};
KW   Proteomics identification {ECO:0007829|PeptideAtlas:F7BAA0};
KW   Reference proteome {ECO:0000313|Proteomes:UP000002281};
KW   Transferase {ECO:0000256|RuleBase:RU368071}.
FT   DOMAIN          49..128
FT                   /note="GST N-terminal"
FT                   /evidence="ECO:0000259|PROSITE:PS50404"
FT   DOMAIN          133..257
FT                   /note="GST C-terminal"
FT                   /evidence="ECO:0000259|PROSITE:PS50405"
SQ   SEQUENCE   268 AA;  30671 MW;  A5805CB9B7983359 CRC64;
     MLSRWLEEPL ESKFWNDGRA LSLRCAAMSG GSARSLGKGS PPPGPVPEGV IRVYSMRFCP
     FAERTRLVLN AKGIRHEVIN INLKNKPEWF FEKNPLGLVP VLENSQGQLI YESTITCEYL
     DEAYPGKKLL PDDPYEKARQ KMIFELSSQI PTLLICFLRG QNKDDYSGQK EQLHKEFSKL
     EEVLTNKKTT FFGGKNISMV DYLIWPWFER LEAVELIDCV DHTPKLKLWM EAMRKDPTVS
     ALITDAKTLR GFIDLYLQNS PDACDYGL
//