abstract |
A carrier containing a novel protein molecule having an improved cell penetration function for drug delivery is provided. A carrier containing a penton-based (PB) polypeptide, such as a full-length PB polypeptide containing a Leu60Trp mutation, or a full-length PB polypeptide containing a Lys375Glu mutation, a Val449Met mutation, and a Pro469Ser mutation. [Selection diagram] FIG. |