pepsin A,pepsin A-3,pepsin A-4,pepsin A-5,pepsinogen 3, group I (pepsinogen A),pepsinogen 4, group I (pepsinogen A),pepsinogen 5, group I (pepsinogen A),pepsinogen-3,pepsinogen-4,pepsinogen-5,Pg5,pregnancy-associated glycoprotein.
Shows particularly broad specificity, although bonds involving phenylalanine and leucine are preferred, many others are also cleaved to some extent.