precursor of protealysin, metalloproteinase from serratia proteamaculans.
The catalytic zinc atom is shown as a light grey CPK sphere. The zinc ligands are shown in ball-and-stick representation: His162 and His166 in purple and Glu186 in blue. The catalytic residues are shown in ball-and-stick representation: Glu163 (engineered to Ala) in blue and His264 in purple. The propeptide is shown in grey.
