======= 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 |}}