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Protein tertiary structure
Three dimensional shape of a protein / From Wikipedia, the free encyclopedia
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Protein tertiary structure is the three-dimensional shape of a protein. The tertiary structure will have a single polypeptide chain "backbone" with one or more protein secondary structures, the protein domains. Amino acid side chains and the backbone may interact and bond in a number of ways. The interactions and bonds of side chains within a particular protein determine its tertiary structure. The protein tertiary structure is defined by its atomic coordinates. These coordinates may refer either to a protein domain or to the entire tertiary structure.[1][2] A number of these structures may bind to each other, forming a quaternary structure.[3]
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