Solution: List and define the four levels of structure in a functional protein.

Problem

List and define the four levels of structure in a functional protein.

Solution

The four levels of structure of proteins are the following: 

  • Primary: this structure is simply the amino acid sequence in a polypeptide chain.
  • Secondary: refers to local folded structures that form within a polypeptide due to interactions between atoms of the polypeptide chain backbone (aside from the r group atoms). The most common types of secondary structures are the α helix and the β pleated sheet.
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