The polypetide or fusion protein can be removed from {HEAD ~ the matrix} with a protease capable of cleaving a specific protease cleavage site, or with {TAIL ~ a solution} having a low ionic strength or a high pH 
with
The polypetide or fusion protein can be removed from { HEAD ~ the matrix } with a protease capable of cleaving a specific protease cleavage site , or with { TAIL ~ a solution } having a low ionic strength or a high pH
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH