2 Tutorials that teach Secondary Structure of Proteins
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Secondary Structure of Proteins

Secondary Structure of Proteins


This lesson will explain the secondary structure of a protein.

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Secondary Protein Structure

The secondary structure of proteins can cause the polypeptides to form into two distinct shapes. One is called an alpha helix and the other is called a beta pleated sheet. An alpha helix forms when the polypeptides begin to twist.  A beta pleated sheet happens when the polypeptides fold several times. The hydrogen bonds between the amino acids determine if the secondary structure of a protein will be an alpha helix or a beta pleated sheet.


Source: Concepts in Biology. 12th Edition. copywright 2007 McGraw-Hill.