Saccharomyces cerevisiae	the enzyme is also present in wild type yeast, although its level is ten to twenty times lower than those found in the mutant	25141, 25142, 25143, 25144	
Saccharomyces cerevisiae 10a12-13	-	25144	
Saccharomyces cerevisiae PM-II	-	25144	
Saccharomyces cerevisiae	-	25144, 677697	
Saccharomyces cerevisiae	isoform S288c	750667