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Research Progress in Sequences Comparison and Crystal Structure of Silk Fibroin

Silk fibroin is native fibrous protein extracted from silk. It has good mechanical properties because of its unique amino acid composition, complex of sequence characterization and the transform of crystalline structure under different condition. The characteristics of silk fibroin makes it better biological biocompatibility and biodegradability and have been used widely as biomaterials in the field of tissue engineering. Based on the introduction of its properties, the researches on the amino acid composition, sequence characteristics, molecular conformation, and its performance were reviewed in this paper.