{HEAD ~ The resulting crystals} were crosslinked with {TAIL ~ glutaraldehyde} at a concentration of 12.5% to form a thermolysin CLEC 
crosslinked with
{ HEAD ~ The resulting crystals } were crosslinked with { TAIL ~ glutaraldehyde } at a concentration of 12.5 % to form a thermolysin CLEC
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH