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Literature summary for 2.1.1.67 extracted from

  • Chrzanowska, M.; Kurzawski, M.; Dro?dzik, M.; Mazik, M.; Oko, A.; Czekalski, S.
    Thiopurine S-methyltransferase phenotype-genotype correlation in hemodialyzed patients (2006), Pharmacol. Rep., 58, 973-978.
    View publication on PubMed
Search for more literature for 2.1.1.67

Application

Application Comment Organism
medicine patients carrying a variant genotype have low TPMT activity and produce elevated levels of 6-thioguanine nucleotides in their red blood cells, 6-TGN accumulation may result in azathioprine-induced bone marrow myelosuppression in the course of treatment with the drug in a standard dosage regimen in patients following renal transplantation Homo sapiens

Protein Variants

Protein Variants Comment Organism
A154T variant TPMT*3B Homo sapiens
A80P variant TPMT*2 Homo sapiens
Y240C variant TPMT*3C Homo sapiens

Localization

Localization Comment Organism GeneOntology No. Textmining
cytosol
-
 Homo sapiens 5829
-

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
S-adenosyl-L-methionine + a thiopurine Homo sapiens
-
 S-adenosyl-L-homocysteine + a thiopurine S-methylether
-
 ?

Organism

Organism UniProt Comment Textmining
Homo sapiens
-
-
-

Source Tissue

Source Tissue Comment Organism Textmining
blood
-
 Homo sapiens
-
erythrocyte
-
 Homo sapiens
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
additional information
-
 activity of TPMT in nmol of the formed 6-mMP/g Hb/h, dialyzed patients, total 30.6, females 30.1, males 31.7, control group, total 28.4, females 28.4, males 28.7 Homo sapiens

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
S-adenosyl-L-methionine + 6-mercaptopurine
-
 Homo sapiens S-adenosyl-L-homocysteine + 6-methylmercaptopurine
-
 ?
S-adenosyl-L-methionine + 6-thioguanine
-
 Homo sapiens S-adenosyl-L-homocysteine + 6-methylthioguanine
-
 ?
S-adenosyl-L-methionine + a thiopurine
-
 Homo sapiens S-adenosyl-L-homocysteine + a thiopurine S-methylether
-
 ?
S-adenosyl-L-methionine + azathioprine
-
 Homo sapiens ?
-
 ?

Synonyms

Synonyms Comment Organism
thiopurine S-methyltransferase
-
 Homo sapiens
TPMT
-
 Homo sapiens