{HEAD ~ 3 antibody} by modifying {TAIL ~ an amino acid residue} that is exposed on the surface of the anti glypican 
{ HEAD ~ 3 antibody } by modifying { TAIL ~ an amino acid residue } that is exposed on the surface of the anti glypican
HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH