title: Secondary structure of the lac repressor.
mesh_terms: D001426:Bacterial Proteins / Q000302:isolation & purification; D002247:Carbon Isotopes; D002501:Centrifugation, Zonal; D002713:Chlorine; D002852:Chromatography, Ion Exchange; D002942:Circular Dichroism; D003090:Coliphages; D004279:DNA, Viral; D004586:Electrophoresis; D004926:Escherichia coli; D000431:Ethanol; D005690:Galactose; D005809:Genes, Regulator; D006027:Glycosides; D007785:Lactose; D046911:Macromolecular Substances; D008433:Mathematics; D009876:Operon; D009905:Optical Rotatory Dispersion; D011485:Protein Binding; D011487:Protein Conformation; D012967:Sodium Dodecyl Sulfate; D013440:Sulfides; D014466:Ultraviolet Rays; D014508:Urea
chemical_list: D001426:Bacterial Proteins; D002247:Carbon Isotopes; D004279:DNA, Viral; D006027:Glycosides; D046911:Macromolecular Substances; D013440:Sulfides; D012967:Sodium Dodecyl Sulfate; D000431:Ethanol; D002713:Chlorine; D014508:Urea; D007785:Lactose; D005690:Galactose