The invention further relates to screening methods for identifying {HEAD ~ binding partners} of {TAIL ~ the polypeptides} 
of
The invention further relates to screening methods for identifying { HEAD ~ binding partners } of { TAIL ~ the polypeptides }
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL