Pharmacogenomics Flashcards
Butyrylcholinesterase (BChE)
Hydrolysis of short acting muscle relaxer Succinylcholine
N-acetyltransferase 2 (NAT2)
Catalyzes the acetylation of Isoniazid, Hydralazine, Procainamide
Slow acetylator phenotype
Drug toxicities
Fast acetylator phenotype
Active drugs quickly metabolized and innactivated. Pro-drugs may result in overdose.
Thiopurine S-Methyltransferase (TPMT)
Catalyzes the S-methylation of thiopurine drugs such as 6-mercaptopurine and azathiopurine immunosuppressant agents
TPMT*3A
Results in decrease in tissue levels of TPMT
Homozygous for TPMT*3
At risk for life threatening myelosuppression when treated with standard doses of thiopurine drugs
5-Lipoxygenase
target for asthma drug Zileuton
Zileuton
decreases airway inflammation by inhibiting 5-lipoxygenase
ALOX5
Gene that encodes for 5-lipoxygenase enzyme
5 repeat ALOX5 allele
Express more 5-lipoxygenase
S-Warfarin is metabolized primarily by?
CYP2C9
Varient alleles of S-Warfarin
Associated with decreased levels of CYP2C9
Warfarin’s target?
Vitamin K epoxide reductase
This gene that encodes Vitamin K epoxide reductase has been found to have a haplotype associated with a low dose requirement?
Vitamin K epoxide reductase complex 1 (VKORC1)