{HEAD ~ Certain aspects} of the present invention relate to linear {TAIL ~ random amino acid copolymers} made of amino acid residues Xaa1, Xaa2, Ala and Lys in a molar ratio which provides a copolymer having the desired biological properties recited herein 
relate to
{ HEAD ~ Certain aspects } of the present invention relate to linear { TAIL ~ random amino acid copolymers } made of amino acid residues Xaa1 , Xaa2 , Ala and Lys in a molar ratio which provides a copolymer having the desired biological properties recited herein
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH REL REL OTH TAIL TAIL 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 OTH OTH OTH OTH OTH OTH OTH