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There are amino groups and carboxyl groups in protein molecules

　　Protein is a polymer compound composed of α -amino acids through peptide bonds, and there are amino groups and carboxyl

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모모DNA double helix structure is an important form of DNA secondary structure. It is a structural model put forward by

　　Protein is a polymer compound composed of α -amino acids through peptide bonds, and there are amino groups and carboxyl

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　　The amino acid sequence analysis of protein polypeptide chain, that is, the determination of protein primary structure, mainly includes the

　　Protein is a complex organic polymer compound composed of α -amino acids combined in a certain order to form a

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