1.3.99.30 NAD+ more than 2fold stimulation of activity compared to control, assay with supernatant of Escherichia coli recombinantly expressing phytoene desaturase from Neurospora crassa 712086 1.3.99.30 NADP+ stimulation is lower than with NAD+, assay with supernatant of Escherichia coli recombinantly expressing phytoene desaturase from Neurospora crassa 712086