Silk proteins

摘要

The present invention provides silk proteins, as well as nucleic acids encoding these proteins. The present invention also provides recombinant cells and/or organisms which synthesize silk proteins. Silk proteins of the invention can be used for a variety of purposes such as in the manufacture of personal care products, plastics, textiles, and biomedical products.

主权项

1. A recombinant host cell comprising a polynucleotide which encodes a silk polypeptide, wherein at least a portion of the polypeptide has a coiled coil structure, and wherein the silk polypeptide comprises an amino acid sequence which is at least 90% identical to at least any one or more of SEQ ID NO:1, SEQ ID NO:2, SEQ ID NO:22, SEQ ID NO:23, SEQ ID NO:40, SEQ ID NO:41, SEQ ID NO:56, SEQ ID NO:57, SEQ ID NO:3, SEQ ID NO:4, SEQ ID NO:24, SEQ ID NO:25,SEQ ID NO:42, SEQ ID NO:43, SEQ ID NO:58, SEQ ID NO:59, SEQ ID NO:5, SEQ ID NO:6, SEQ ID NO:26, SEQ ID NO:27, SEQ ID NO:44, SEQ ID NO:45, SEQ ID NO:60, SEQ ID NO:61, SEQ ID NO:7, SEQ ID NO:8, SEQ ID NO:28, SEQ ID NO:29, SEQ ID NO:46, SEQ ID NO:47, SEQ ID NO:62,or SEQ ID NO:63; and
wherein a) the polynucleotide is operably linked to a heterologous promoter, and/or b) the recombinant host cell is a bacterial, yeast or plant cell.