Term Name:	gamma_turn_classic
Synonyms:	classic gamma turn, gamma turn classic
Definition:	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)=75.0 - psi(i+1)=-64.0.
Ontology:	Sequence Ontology [SO:0001139]