MeSH definition : Recurring supersecondary structures characterized by 20 amino acids folding into two
alpha helices connected by a non-helical loop segment. They are found in many sequence-specific
DNA-BINDING PROTEINS and in CALCIUM-BINDING PROTEINS.;
Recurring supersecondary structures characterized by 20 amino acids folding into two
alpha helices connected by a non-helical loop segment. They are found in many sequence-specific
DNA-BINDING PROTEINS and in CALCIUM-BINDING PROTEINS.