gamma_turn
gamma_turn_inverse
BS:00221
Gamma turns, defined for 3 residues i, i+1, i+2 if a hydrogen bond exists between residues i and i+2 and the phi and psi angles of residue i+1 fall within 40 degrees: phi(i+1)=-79.0 - psi(i+1)=69.0.
SO:0001140
gamma turn inverse
sequence