Version 2.80

Description

The TPMT gene (thiopurine S-methyltransferase) [HGNC Gene ID:12014] is located on chromosome 6p22.3. 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] [NCBI Gene ID:7172] Eight known mutations in variants TPMT*2 through *7 account for 90-95% of cases of TPMT deficiency, with four of them, all subtypes of TPMT*3, accounting for 75%. The 8 mutations are as follows: c.238G>C (TPMT*2), c.460G>A and c.719A>G (TPMT*3A), c.460G>A (TPMT*3B), c.719A>G (TPMT*3C), intron 9/exon10 splice junction mutation (TPMT*4), c.146C>T (TPMT*5), c.539A>T (TPMT*6), c.681T>G (TPMT*7). PMID: 11067806 Source: National Center for Biotechnology Information (NCBI) Gene

Basic Part Properties

Part Name
TPMT gene.c.719A>G
Part Display Name
TPMT gene c.719A>G
Part Type
Component (Describes the core component or analyte measured)
Created On
2007-07-24
Construct for LOINC Short Name
TPMT c.719A>G

LOINC Terminology Service (API) using HL7® FHIR® Get Info

CodeSystem lookup
https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=LP64739-3
ConceptMap translate
https://fhir.loinc.org/ConceptMap/$translate?system=http://loinc.org&code=LP64739-3

Language Variants Get Info

Tag Language Translation
zh-CN Chinese (China) TPMT 基因.c.719A>G
Synonyms: TPMT p.A719G
es-ES Spanish (Spain) Gen TPMT c.719A>G
it-IT Italian (Italy) TPMT, gene.c.719A>G
Synonyms: Gene TPMT c.719A>G
et-EE Estonian (Estonia) TPMT geen.p.A719G
tr-TR Turkish (Turkey) TPMT geni.c.719A>G
ru-RU Russian (Russian Federation) TPMT ген.c.719A>G
nl-NL Dutch (Netherlands) TPMT-gen.c.719A>G
Synonyms: TPMT gen.c.719A>G
el-GR Greek (Greece) Γονίδιο TPMT.c.719A>G
Synonyms: Γονίδιο TPMT.c.719A>G