A preferred protein is an enzyme such as {TAIL ~ thermolysin}, elastase, asparaginase, {HEAD ~ lysozyme}, lipase or urease 
A preferred protein is an enzyme such as { TAIL ~ thermolysin } , elastase , asparaginase , { HEAD ~ lysozyme } , lipase or urease
OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH