5.5.1.9	D260E	cycloeucalenol conversion into ergosterol in Saccharomyces cerevisiae erg7 transformants carrying mutagenized AtCPI, relative ergosterol synthesis: 92%, wild-type: 100%. Relative activity: 135% (wild-type: 100%). Km (cycloeucalenol) increased compared to wild-type. Mutant shows 6% activity with 24-methylene-24-dihydro-cycloartenol (wild-type 0%)	729167	
5.5.1.9	D260H	cycloeucalenol conversion into ergosterol in Saccharomyces cerevisiae erg7 transformants carrying mutagenized AtCPI, relative ergosterol synthesis: 61%, wild-type: 100%. Relative activity: 5.2% (wild-type: 100%). Km (cycloeucalenol) decreased compared to wild-type	729167	
5.5.1.9	D260V	cycloeucalenol conversion into ergosterol in Saccharomyces cerevisiae erg7 transformants carrying mutagenized AtCPI, relative ergosterol synthesis: 0%, wild-type: 100%. Relative activity: below 1.5% (wild-type: 100%)	729167	
5.5.1.9	D260Y	cycloeucalenol conversion into ergosterol in Saccharomyces cerevisiae erg7 transformants carrying mutagenized AtCPI, relative ergosterol synthesis: 22%, wild-type: 100%. Relative activity: 0.7% (wild-type: 100%)	729167	
5.5.1.9	E29D	cycloeucalenol conversion into ergosterol in Saccharomyces cerevisiae erg7 transformants carrying mutagenized AtCPI, relative ergosterol synthesis: 65%, wild-type: 100%. Relative activity: 3.8% (wild-type: 100%). Km (cycloeucalenol) decreased compared to wild-type	729167	
5.5.1.9	E29H	cycloeucalenol conversion into ergosterol in Saccharomyces cerevisiae erg7 transformants carrying mutagenized AtCPI, relative ergosterol synthesis: 33%, wild-type: 100%. Relative activity: 3.5% (wild-type: 100%). Km (cycloeucalenol) decreased compared to wild-type	729167	
5.5.1.9	E29K	cycloeucalenol conversion into ergosterol in Saccharomyces cerevisiae erg7 transformants carrying mutagenized AtCPI, relative ergosterol synthesis: 1.7%, wild-type: 100%. Relative activity: below 0.5% (wild-type: 100%)	729167	
5.5.1.9	E29K	in vivo conversion of cycloeucalenol into ergosterol and in vitro CPI activity in Saccharomyces cerevisiae erg7 transformants carrying Arabidopsis thaliana mutant CPI: 1.7% relative ergosterol synthesis (wild-type: 100%), below 0.5% in vitro microsomal CPI activity (wild-type: 100%)	729167	
5.5.1.9	E29V	cycloeucalenol conversion into ergosterol in Saccharomyces cerevisiae erg7 transformants carrying mutagenized AtCPI, relative ergosterol synthesis: 0%, wild-type: 100%. Relative activity: below 0.5% (wild-type: 100%)	729167	
5.5.1.9	E54V	cycloeucalenol conversion into ergosterol in Saccharomyces cerevisiae erg7 transformants carrying mutagenized AtCPI, relative ergosterol synthesis: 94%, wild-type: 100%	729167