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