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الشخص الذي يمكن الاتصال به Ms. Alisa
shangye, hengshui, hebei
contains specific amounts of *8 different amino acids (AA) which are joined together in sequences to form polypeptide chains of ca. ***0 AA per chain, scientifically known as the primary structure. Three of the polypeptide chains formed this way join together as a left-hand spiral to give the secondary structure. In the tertiary structure, the spiral winds and folds itself to a right-hand spiral (triple helix). This results in a rod-shaped molecule, the so-called proto fibril.
