the cotyledons of 4-d-old seedlings contain an endopeptidase which cleaves the polypeptides of [ ( 3 ) h ] phaseolin ( apparent molecular weights=51 000 , 48 000 , 46 000 and 43 000 ) into three discrete clusters of proteolytic fragments ( m rs=27 000 , 25 000 and 23 000 ) .
C0030946
endopeptidase
C0597304
proteolytic