Table 2.
Phenotype | Example Genotypes | Enzyme Activity |
---|---|---|
Ultra-rapid metabolizer (UM) | *1/*17 | Normal or increased |
*17/*17 | ||
Extensive metabolizer (EM) | *1/*1 (wild type) | Normal |
Intermediate metabolizer (IM) | *1/*2 | Intermediate |
*1/*3 | ||
*2/*17 | Likely intermediate | |
*3/17 | Likely intermediate | |
Poor metabolizer (PM) | *2/*2 | Low or absent |
*3/*3 | ||
*2/*3 |