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A representative multiplex PCR analysis of glutathione S-transferase (GST) polymorphisms. Albumin (350 bp), glutathione S-transferase T1 (GSTT1; 459 bp) and glutathione S-transferase M1 (GSTM1; 219 bp) genes PCR products resolved by agarose gel electrophoresis. Line MARKER is 100 bp DNA ladder. Lines 1 and 4 are both GSTT1 and GSTM1 present genotype, line 2 both GSTT1 and GSTM1 null genotype, line 3 is GSTT1 present genotype and GSTM1 null genotype.
