3.4.23.36 Release of signal peptides from bacterial membrane prolipoproteins including murein prolipoprotein. Hydrolyses -Xaa-Yaa-Zaa-/-(S,diacylglyceryl)Cys-, in which Xaa is hydrophobic (preferably Leu), and Yaa (Ala or Ser) and Zaa (Gly or Ala) have small, neutral sidechains Xaa is hydrophobic (preferably Leu) and Xbb (Ala or Ser) and Xcc (Gly or Ala) have small, neutral side chains, release of signal peptides from bacterial membrane prolipoproteins including murein prolipoprotein -