title: The delta helix--a possible left-handed stable polypeptide structure in the N-terminal segment of the lac repressor.
mesh_terms: D002942:Circular Dichroism; D004355:Drug Stability; D009682:Magnetic Resonance Spectroscopy; D008958:Models, Molecular; D010455:Peptides; D011487:Protein Conformation; D012097:Repressor Proteins; D014157:Transcription Factors
chemical_list: D010455:Peptides; D012097:Repressor Proteins; D014157:Transcription Factors