The physical and chemical properties of these selected peptides are examined to determine whether the peptides are suitable for use in therapeutic compositions or whether {HEAD ~ the peptides} require {TAIL ~ modification} as described herein 
require
The physical and chemical properties of these selected peptides are examined to determine whether the peptides are suitable for use in therapeutic compositions or whether { HEAD ~ the peptides } require { TAIL ~ modification } as described herein
OTH OTH OTH OTH OTH 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 HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH