Figure 1.

Detection of Asn268 mutation in cytochrome b gene in P. falciparum by Restriction digest method. 174 bp amplification products with the secondary amplification primer pair cytb2/cytb7 (lanes 3, 5, 7, 9) digested with SspI (lanes 2, 4, 6, 8) and were run on 2% NuSieve^® 3:1 agarose gel. DNA from NGATV01 containing the AAT (Asn) mutation remains uncut (lane 6), while DNA from K1 containing the TAT (Tyr) wild-type codon is digested (150 bp) by the enzyme (lane 8). DNA from patient ID011 showed a mixed infection consisting both the TAT (Tyr) wild-type digested (150 bp) and mutant undigested (174 bp) codons (lane 2). Patient ID024 had parasites harboring the mutant (Asn268) allele of cytb as their DNA remained uncut (lane 4) by the enzyme. Lanes 1 and 10 represent the low molecular weight DNA ladder (New England Biolabs, Beverly, MA) used as a marker for the electrophoresis