Patent ID: 7544666

Claim:
An oligopeptide having the formula of: wherein each AA 1 and AA 9 is independently Asn or Gln; each AA 2 and AA 8 is independently Ala, or Gly; each AA 3 and AA 7 is independently Pro or homoproline (pipeconic acid); each AA 4 and AA 6 is independently Val, Leu, or Ile; AA 5 is Ser or Thr; R 1 is hydrogen, phosphate, phosphate ester, sulfate, sulfate ester, or salt derivatives thereof; X links to nitrogen of AA 1 and is —COR 2 , —COOR 3 , —SO 2 R 4 ; wherein R 2 and R 3 are each independently or together substituted or unsubstituted C 6-18 aryl, or substituted or unsubstituted C 1-12 heteroaryl; and R 4 is substituted or unsubstituted C 1-32 alkyl, substituted or unsubstituted C 2-32 alkenyl, substituted or unsubstituted C 2-32 alkynyl, substituted or unsubstituted C 6-18 aryl, or substituted or unsubstituted C 1-12 heteroaryl; and Y links to carbonyl group of AA 9 and is —OR 5 , or —NR 6 R 7 ; R 5 , R 6 , R 7 are each independently or together hydrogen, substituted or unsubstituted C 1-32 alkyl, substituted or unsubstituted C 2-32 alkenyl, substituted or unsubstituted C 2-32 alkynyl, substituted or unsubstituted C 6-18 aryl, or substituted or unsubstituted C 1-12 heteroaryl.