| 摘要 |
Described herein is a transmembrane delivery system comprising: a pharmaceutically active moiety; and a polypeptide of up to 20 amino acids in length comprising a continuous region of at least 2, more typically at least 4 basic amino acids. Typically the system comprises a polypeptide which has the formula: (B)n(A)m where B is a basic amino acid A is an acidic amino acid, m and n are integers, and n is at least 4, and m is less than n. |
