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多肽和蛋白质广泛存在于生物机体里,具有多种多样的生理生化功能,也是一大类具有药用价值的生化物质。一般将少于90个氨基酸残基组成的
Peptides and proteins widely exist in the biological body, with a variety of physiological and biochemical functions, but also a large class of medicinal biochemical substances. It will generally consist of fewer than 90 amino acid residues