In proteins, elements of secondary structure combine to form a motif.
What is proteins?
- The proteins are made up of several amino acids joined together by a peptide bond.
- Amino acids consists of amino group, carboxyl group and a R group.
- The R group is different in different amino acids.
- The proteins are building blocks of human body.
- There are four structures of protein: primary, secondary, tertiary and quaternary.
What is secondary structure of proteins?
- It is a three-dimensional structure of protein.
- In this the polynucleotide are folded to form a alpha helix and beta sheet.
What is motif?
- "A motif in protein structure refers to a chain-like biological structure made up of connectivity between secondary structural elements."
Hence, the correct option is: b. Motif.
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