tokens: Helix III is less rigid , makes an average angle of about 90 degrees with helices I and II , and constitutes the other arm of the molecule .
folded_tokens: helix iii is less rigid , makes an average angle of about 90 degrees with helices i and ii , and constitutes the other arm of the molecule .
labels: B-protein_substructure I-protein_substructure O O O O O O O O O O O O O O O O O O O O O O O O O O O