TABLE 3.

Polymorphisms observed in the K13 propeller in P. falciparum isolates^a

Codon position	Amino acid reference	Nucleotide reference	Amino acid mutation	Nucleotide mutationd	Prevalence of mutation (%)
487b,c	V	GTA	V	gtG	0.9 (n = 1)
539	R	AGA	T	aCa	0.9 (n = 1)
575c	R	AGA	T	aCa	1.8 (n = 2)
580	C	TGT	Y	tTt	2.7 (n = 3)
580c	C	TGT	F	tAt	0.9 (n = 1)
584	D	GAT	V	gTt	0.9 (n = 1)
627b,c	A	GCT	A	gcA	0.9 (n = 1)
692c	V	GTT	L	Ctt	0.9 (n = 1)

^aCases were all imported from Ghana.

^bSynonymous mutation.

^cMutated site not previously reported.

^dMutations are in boldface.