catalyzes the formation of phosphopantothenoylcysteine from (R)-phosphopantothenate and L-cysteine with the concomitant consumption of a nucleotide triphosphate
catalyzes the second step of the pathway during which phosphopantothenate reacts with ATP and cysteine to form phosphopantothenoylcysteine
is the second enzyme of the CoA de novo biosynthesis pathway