Methods for producing novel polypeptides contributing to {HEAD ~ the production} of {TAIL ~ such conjugates} are provided 
of
Methods for producing novel polypeptides contributing to { HEAD ~ the production } of { TAIL ~ such conjugates } are provided
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH