| 摘要 |
A method of increasing the modulus of elasticity of a biopolymer, which comprises incorporating a hexameric unit of formula -X-(APGVGV)n-Y- wherein A is a peptide-forming residue of L-alanine; P is a peptide-forming residue of L-proline; G is a peptide-forming residue of glycine; V is a peptide-forming residue of L-valine; X is PGVGV, GVGV, VGV, GV, V, or a covalent bond; Y is APGVG, APGV, APG, AP, A, or a covalent bond; and n is an integer from 2 to 200, wherein said hexameric unit comprises at least 18 amino acid residues, into an elastomeric polypeptide chain. |
