title: Isolation and characterization of the   helical regions of epidermal prekeratin.
mesh_terms: D000596:Amino Acids / Q000032:analysis; D000818:Animals; D002417:Cattle; D055598:Chemical Phenomena; D002621:Chemistry; D002850:Chromatography, Gel; D004591:Electrophoresis, Polyacrylamide Gel; D006863:Hydrogen-Ion Concentration; D007633:Keratins / Q000032:analysis / Q000302:isolation & purification*; D046911:Macromolecular Substances; D008970:Molecular Weight; D009666:Nose; D009905:Optical Rotatory Dispersion; D010455:Peptides / Q000032:analysis / Q000302:isolation & purification; D011487:Protein Conformation; D011498:Protein Precursors / Q000032:analysis / Q000302:isolation & purification*; D012867:Skin / Q000032:analysis*; D012967:Sodium Dodecyl Sulfate; D013056:Spectrophotometry, Ultraviolet; D014357:Trypsin; D014461:Ultracentrifugation; D014783:Viscosity
chemical_list: D000596:Amino Acids; D046911:Macromolecular Substances; D010455:Peptides; D011498:Protein Precursors; D012967:Sodium Dodecyl Sulfate; D007633:Keratins; D014357:Trypsin