The polypeptide composition of bovine epidermal alpha-keratin.

  title={The polypeptide composition of bovine epidermal alpha-keratin.},
  author={Peter M. Steinert and William W. Idler},
  journal={The Biochemical journal},
  volume={151 3},
1. The polypedtide chains that comprise the subunits of the tonofilaments, or th alpha-keratin component, of bovine epidermis were fractionated by combination of chromatography on DEAE-cellulose and preparative polyacrylamide-gel electrophoresis. 2. The seve polypeptide chains investigated had generalyy similar properties; all contained two residues per molecule of tryptophan and N-acetylserine was the common N-terminal amino acid residue. 3. On the basis of close similarities in alpha-helix… CONTINUE READING