By “isolated” in reference to {TAIL ~ a polypeptide} is meant a polymer of 6, 12, 18 or more amino acids conjugated to each other, including {HEAD ~ polypeptides} that are isolated from a natural source or that are synthesized 
By “ isolated ” in reference to { TAIL ~ a polypeptide } is meant a polymer of 6 , 12 , 18 or more amino acids conjugated to each other , including { HEAD ~ polypeptides } that are isolated from a natural source or that are synthesized
OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH