Three-dimensional protein structural elements that are composed of a combination of secondary structures. They include HELIX-LOOP-HELIX MOTIFS and ZINC FINGERS. Motifs are typically the most conserved regions of PROTEIN DOMAINS and are critical for domain function. However, the same motif may occur in proteins or enzymes with different functions.

Synonyms: Protein Motif, Motifs, Amino Acid, AA Motif, Amino Acid Motif, Motifs, AA, Motif, Amino Acid, Motif, Protein, Motif, AA, Supersecondary Protein Structure, Protein Structures, Supersecondary, Amino Acid Motifs, AA Motifs, Protein Structure, Supersecondary, Motifs, Protein, Supersecondary Protein Structures, Protein Motifs