Tutorial

Step 2: Simple Addition

Acknowledge that adding the numbers for a given isoenzyme gives a sum not shared by other isoenzymes.
This is great news because remembering one number will always be easier than remembering two. Table 2 gives examples of how this concept applies for Cytochrome P450 (CYP) A.

Table 2. Summing the Numbers for Cytochrome A
Instead of remembering this isoenzyme...	Remember this...
1A2	3 (1+2)
3A4	7 (3+4)
2A6	8 (2+6)

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