structural motif in proteins involved in various biological processes
Leucine-rich repeats (LRRs) are short sequences of amino acids found in proteins, characterized by the presence of the amino acid leucine at regular intervals. These repeats form a structural motif that creates a horseshoe-shaped domain, which is often involved in protein-protein interactions, playing crucial roles in various biological processes such as cell signaling, immune response, and the development of hair follicles.