title: The amino acid sequence of protein SCMK-B2A from the high-sulphur fraction of wool keratin.
abstract: 1. The amino acid sequence of protein SCMK-B2A, a reduced and S-carboxymethylated protein from the high-sulphur fraction of wool, has been determined. 2. This protein of 171 amino acid residues displays both a high degree of internal homology and extensive external homology with other members of the SCMK-B2 group of proteins. 3. Evidence is presented which suggests that the SCMK-B2 group of proteins are produced by separate non-allelic genes.
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D002848:Chromatography, DEAE-Cellulose; D002918:Chymotrypsin; D004591:Electrophoresis, Polyacrylamide Gel; D005796:Genes; D006868:Hydrolysis; D007633:Keratins / Q000032:analysis*; D008745:Methylation; D010084:Oxidation-Reduction; D010455:Peptides; D011506:Proteins / Q000032:analysis; D013455:Sulfur; D014357:Trypsin; D014935:Wool / Q000032:analysis*
chemical_list: D010455:Peptides; D011506:Proteins; D007633:Keratins; D013455:Sulfur; D002918:Chymotrypsin; D014357:Trypsin