Difference between alpha helix and beta-sheet
What is the basic difference between alpha helix and beta-sheet protein conformations?
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Alpha helix and beta-sheet conformations are the two major kinds of secondary structure of a protein molecule. According to primary protein structure, its secondary structure can be of one kind or other.
In alpha-helix structure, the polypeptide curls longitudinally by the act of hydrogen bonds making a spiral, or helix. In the beta-sheet conformation, the protein is much distended and the hydrogen bonds form a zigzag shaped protein structure termed as B-strand. Most of the assembled beta-strands form a beta-sheet.
Cyclosis: Cyclosis is a kind of internal cell movement in which an oriented flow of circulating material is formed and maintained in cytoplasm by the action of microfilaments. Cyclosis is much easily detected in plant cells.
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