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