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Identification
HMDB Protein ID HMDBP00822
Secondary Accession Numbers
  • 6103
Name Glutathione S-transferase omega-1
Synonyms
  1. GSTO-1
  2. Glutathione S-transferase omega 1-1
  3. Glutathione-dependent dehydroascorbate reductase
  4. Monomethylarsonic acid reductase
  5. S-(Phenacyl)glutathione reductase
  6. GSTO 1-1
  7. MMA(V) reductase
  8. SPG-R
Gene Name GSTO1
Protein Type Enzyme
Biological Properties
General Function Involved in glutathione transferase activity
Specific Function Exhibits glutathione-dependent thiol transferase and dehydroascorbate reductase activities. Has S-(phenacyl)glutathione reductase activity. Has also glutathione S-transferase activity. Participates in the biotransformation of inorganic arsenic and reduces monomethylarsonic acid (MMA) and dimethylarsonic acid.
Pathways
  • Chemical carcinogenesis - DNA adducts
  • Drug metabolism - cytochrome P450
  • Glutathione metabolism
  • Metabolism of xenobiotics by cytochrome P450
Reactions
RX + Glutathione → HX + R-S-glutathione details
Glutathione + Dehydroascorbic acid → Oxidized glutathione + Ascorbic acid details
Methylarsonate + Glutathione → Methylarsonite + Oxidized glutathione + Water details
RX + Glutathione → Halide + R-S-Glutathione details
Naphthalene epoxide + Glutathione → (1R)-Hydroxy-(2R)-glutathionyl-1,2-dihydronaphthalene details
(1S,2R)-Naphthalene 1,2-oxide + Glutathione → (1R)-Glutathionyl-(2R)-hydroxy-1,2-dihydronaphthalene details
(1S,2R)-Naphthalene 1,2-oxide + Glutathione → (1S)-Hydroxy-(2S)-glutathionyl-1,2-dihydronaphthalene details
1-Nitronaphthalene-7,8-oxide + Glutathione → 1-Nitro-7-hydroxy-8-glutathionyl-7,8-dihydronaphthalene details
1-Nitronaphthalene-7,8-oxide + Glutathione → 1-Nitro-7-glutathionyl-8-hydroxy-7,8-dihydronaphthalene details
1-Nitronaphthalene-5,6-oxide + Glutathione → 1-Nitro-5-hydroxy-6-glutathionyl-5,6-dihydronaphthalene details
1-Nitronaphthalene-5,6-oxide + Glutathione → 1-Nitro-5-glutathionyl-6-hydroxy-5,6-dihydronaphthalene details
Bromobenzene-3,4-oxide + Glutathione → 3,4-Dihydro-3-hydroxy-4-S-glutathionyl bromobenzene details
Bromobenzene-2,3-oxide + Glutathione → 2,3-Dihydro-2-S-glutathionyl-3-hydroxy bromobenzene details
Benzo[a]pyrene-4,5-oxide + Glutathione → 4,5-Dihydro-4-hydroxy-5-S-glutathionyl-benzo[a]pyrene details
Benzo[a]pyrene-7,8-diol + Glutathione → 7,8-Dihydro-7-hydroxy-8-S-glutathionyl-benzo[a]pyrene + Water details
2,2-Dichloroacetaldehyde + Glutathione → S-(2,2-Dichloro-1-hydroxy)ethyl glutathione details
1,1-Dichloroethylene epoxide + Glutathione → 2-(S-Glutathionyl)acetyl chloride + Hydrochloric acid details
Chloroacetyl chloride + Glutathione → S-(2-Chloroacetyl)glutathione + Hydrochloric acid details
2-(S-Glutathionyl)acetyl chloride + Glutathione → 2-(S-Glutathionyl)acetyl glutathione + Hydrochloric acid details
Trichloroethylene + Glutathione → S-(1,2-Dichlorovinyl)glutathione + Hydrochloric acid details
1,2-Dibromoethane + Glutathione + Hydrogen Ion → Glutathione episulfonium ion + Bromide details
2-Bromoacetaldehyde + Glutathione → S-(Formylmethyl)glutathione + Bromide details
Aldophosphamide + Glutathione → 4-Glutathionyl cyclophosphamide + Water details
2,3-Epoxyaflatoxin B1 + Glutathione → Aflatoxin B1exo-8,9-epoxide-GSH details
GO Classification
Biological Process
cellular response to arsenic-containing substance
L-ascorbic acid metabolic process
regulation of cardiac muscle contraction by regulation of the release of sequestered calcium ion
positive regulation of skeletal muscle contraction by regulation of release of sequestered calcium ion
negative regulation of ryanodine-sensitive calcium-release channel activity
positive regulation of ryanodine-sensitive calcium-release channel activity
L-ascorbic acid biosynthetic process
xenobiotic catabolic process
Cellular Component
cytosol
Component
cell part
intracellular part
cytoplasm
Function
catalytic activity
transferase activity
transferase activity, transferring alkyl or aryl (other than methyl) groups
glutathione transferase activity
Molecular Function
glutathione transferase activity
glutathione dehydrogenase (ascorbate) activity
methylarsonate reductase activity
Process
metabolic process
Cellular Location
  1. Cytoplasm
Gene Properties
Chromosome Location 10
Locus 10q25.1
SNPs GSTO1
Gene Sequence
>726 bp
ATGTCCGGGGAGTCAGCCAGGAGCTTGGGGAAGGGAAGCGCGCCCCCGGGGCCGGTCCCG
GAGGGCTCGATCCGCATCTACAGCATGAGGTTCTGCCCGTTTGCTGAGAGGACGCGTCTA
GTCCTGAAGGCCAAGGGAATCAGGCATGAAGTCATCAATATCAACCTGAAAAATAAGCCT
GAGTGGTTCTTTAAGAAAAATCCCTTTGGTCTGGTGCCAGTTCTGGAAAACAGTCAGGGT
CAGCTGATCTACGAGTCTGCCATCACCTGTGAGTACCTGGATGAAGCATACCCAGGGAAG
AAGCTGTTGCCGGATGACCCCTATGAGAAAGCTTGCCAGAAGATGATCTTAGAGTTGTTT
TCTAAGGTGCCATCCTTGGTAGGAAGCTTTATTAGAAGCCAAAATAAAGAAGACTATGCT
GGCCTAAAAGAAGAATTTCGTAAAGAATTTACCAAGCTAGAGGAGGTTCTGACTAATAAG
AAGACGACCTTCTTTGGTGGCAATTCTATCTCTATGATTGATTACCTCATCTGGCCCTGG
TTTGAACGGCTGGAAGCAATGAAGTTAAATGAGTGTGTAGACCACACTCCAAAACTGAAA
CTGTGGATGGCAGCCATGAAGGAAGATCCCACAGTCTCAGCCCTGCTTACTAGTGAGAAA
GACTGGCAAGGTTTCCTAGAGCTCTACTTACAGAACAGCCCTGAGGCCTGTGACTATGGG
CTCTGA
Protein Properties
Number of Residues 241
Molecular Weight 27565.6
Theoretical pI 6.589
Pfam Domain Function
Signals Not Available
Transmembrane Regions Not Available
Protein Sequence
>Glutathione S-transferase omega-1
MSGESARSLGKGSAPPGPVPEGSIRIYSMRFCPFAERTRLVLKAKGIRHEVININLKNKP
EWFFKKNPFGLVPVLENSQGQLIYESAITCEYLDEAYPGKKLLPDDPYEKACQKMILELF
SKVPSLVGSFIRSQNKEDYAGLKEEFRKEFTKLEEVLTNKKTTFFGGNSISMIDYLIWPW
FERLEAMKLNECVDHTPKLKLWMAAMKEDPTVSALLTSEKDWQGFLELYLQNSPEACDYG
L
GenBank ID Protein Not Available
UniProtKB/Swiss-Prot ID P78417
UniProtKB/Swiss-Prot Entry Name GSTO1_HUMAN
PDB IDs
GenBank Gene ID U90313
GeneCard ID GSTO1
GenAtlas ID GSTO1
HGNC ID HGNC:13312
References
General References
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