Differences Between Protein Motifs and Protein Domains?

Question

I am in a 300-level molecular biology class and am unclear about this concept and how to delineate motifs versus domains of proteins. Any suggestions would be much obliged.

Answer 1

From the Internet:

A protein DOMAIN is a conserved polypeptide part of a protein, that can fold and function independently. ... While on the other hand, MOTIF is a supersecondary structured protein formed from consecutive sequence of primary structures. For example NAD binding domains have beta-alpha-beta-alpha-beta motif.