the deduced sequence of this proteinase did not contain the consensus sequences for any of the known classes of proteinases ( that is , metallo , cysteine , aspartic , or serine ) , but it did show homology to an escherichia coli proteinase ( called protease iii ) , which also cleaves insulin and is present in the periplasmic space .
C0030940
proteinases
C0030946
proteinase