The present invention relates to a method for prolonging half-life of a protein or a (poly)peptide by replacing one or more amino acid residues of the protein. Further, the present invention is about the protein having a prolonged half-life prepared by the method above.

Cell penetrating peptides that target many cells types including cells of the retina and cornea with high efficiency are provided herein. These peptides can be used to deliver cargo molecules across a plasma membrane, without the need for chemical conjugation. Compositions and viral vectors comprising these cell-penetrating peptides are also provided. Methods of using the peptides, compositions and viruses to deliver various agents to target cells and tissues are also provided.

Cell penetrating peptides that target many cells types including cells of the retina and cornea with high efficiency are provided herein. These peptides can be used to deliver cargo molecules across a plasma membrane, without the need for chemical conjugation. Compositions and viral vectors comprising these cell-penetrating peptides are also provided. Methods of using the peptides, compositions and viruses to deliver various agents to target cells and tissues are also provided.

The present invention relates to a method for prolonging half-life of a protein or a (poly)peptide by replacing one or more amino acid residues of the protein. Further, the present invention is about the protein having a prolonged half-life prepared by the method above.

The present invention relates to a method for prolonging half-life of a protein or a (poly)peptide by replacing one or more amino acid residues of the protein. Further, the present invention is about the protein having a prolonged half-life prepared by the method above.

The present invention relates to a method for prolonging half-life of a protein or a (poly)peptide by replacing one or more amino acid residues of the protein. Further, the present invention is about the protein having a prolonged half-life prepared by the method above.

The present invention relates to a method for prolonging half-life of a protein or a (poly)peptide by replacing one or more amino acid residues of the protein. Further, the present invention is about the protein having a prolonged half-life prepared by the method above.

The present invention relates to a method for prolonging half-life of a protein or a (poly)peptide by replacing one or more amino acid residues of the protein. Further, the present invention is about the protein having a prolonged half-life prepared by the method above.

The present invention relates to a method for prolonging half-life of a protein or a (poly)peptide by replacing one or more amino acid residues of the protein. Further, the present invention is about the protein having a prolonged half-life prepared by the method above.

The present invention relates to a method for prolonging half-life of a protein or a (poly)peptide by replacing one or more amino acid residues of the protein. Further, the present invention is about the protein having a prolonged half-life prepared by the method above.