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. Author manuscript; available in PMC: 2013 Nov 4.
Published in final edited form as: J Clin Pharmacol. 2010 Jan 15;50(4):10.1177/0091270009359182. doi: 10.1177/0091270009359182

Table 1.

CYP2D6 star allele score definition.

CYP2D6 Alleles Function System 1 (Zineh et al.) System 2 (Zanger et al.) Proposed Gene Score System
*3-*8, *11-*16, *18-*20, *36, *38, *40, *42, *44, *56, *4×N PM 0 0 0
*10, *17, *37 IM 0.5 1 0.5
*9, *29, *41, *45, *46 IM 0.75 1 0.5
*1, *2, *33, *35 EM 1 2 1
*41×N, *45×N UM 1.5 3 1
*1×N, *2×N, *35×N UM 2 3 2

Note: proposed gene score system is similar to Gaedigk's system (34). The addition is assigning *41×N as 1.