======= TPMT ======= == Gene Information == * **Official Symbol**: TPMT * **Official Name**: thiopurine S-methyltransferase * **Aliases and Previous Symbols**: N/A * **Entrez ID**: [[https://www.ncbi.nlm.nih.gov/gene/?term=7172|7172]] * **UniProt**: [[https://www.uniprot.org/uniprot/P51580|P51580]] * **Interactions**: [[https://thebiogrid.org/search.php?search=TPMT&organism=9606|BioGRID]] * **PubMed articles**: [[https://www.ncbi.nlm.nih.gov/pubmed/?term=gene%20TPMT|Open PubMed]] * **OMIM**: [[https://omim.org/entry/187680|Open OMIM]] == Function Summary == * **Entrez Summary**: This gene encodes the enzyme that metabolizes thiopurine drugs via S-adenosyl-L-methionine as the S-methyl donor and S-adenosyl-L-homocysteine as a byproduct. Thiopurine drugs such as 6-mercaptopurine are used as chemotherapeutic agents. Genetic polymorphisms that affect this enzymatic activity are correlated with variations in sensitivity and toxicity to such drugs within individuals, causing thiopurine S-methyltransferase deficiency. Related pseudogenes have been identified on chromosomes 3, 18 and X. [provided by RefSeq, Aug 2014]. * **UniProt Summary**: N/A |TPMT| |thiopurine S-methyltransferase activity| |S-adenosyl-L-methionine binding| |methylation| |drug metabolic process| \\ === CRISPR Data === ^Screen^Score^ |[[:results:exp534|Trientine 500μM R08 exp534]]|-1.87| |[[:results:exp437|Ethanol 0.003 R08 exp437]]|-1.73| No correlation found to any other genes in chemogenomics. Global Fraction of Cell Lines Where Essential: 0/739 ^Tissue^Fraction Of Cell Lines Where Essential^ |1290807.0|0/1| |909776.0|0/1| |bile duct|0/28| |blood|0/28| |bone|0/26| |breast|0/33| |central nervous system|0/56| |cervix|0/4| |colorectal|0/17| |esophagus|0/13| |fibroblast|0/1| |gastric|0/16| |kidney|0/21| |liver|0/20| |lung|0/75| |lymphocyte|0/16| |ovary|0/26| |pancreas|0/24| |peripheral nervous system|0/16| |plasma cell|0/15| |prostate|0/1| |skin|0/24| |soft tissue|0/9| |thyroid|0/2| |upper aerodigestive|0/22| |urinary tract|0/29| |uterus|0/5| == Essentiality in NALM6 == * **Essentiality Rank**: 12457 * **Expression level (log2 read counts)**: 5.18 {{:chemogenomics:nalm6 dist.png?nolink |}}