3.4.21.38 additional information - amino acid sequence of the heavy chain, the active site region contains Asp-Ala-Cys-Gln-Gly-Asp-Ser-Gly-Gly sequence 95405 3.4.21.38 additional information - plasma variations of different forms of XIIa analyzed by ELISA assays 683828 3.4.21.38 10000 - the human enzyme is a mixture of two forms, one form is composed of two chains, x * 28000 + x * 52000, a second enzyme form, x * 10000 + x * 28000 + x * 40000 95422 3.4.21.38 28000 - 1 * 28000 + 1 * 46000, heavy chain and light chain held together by disulfide bonds 95405 3.4.21.38 28000 - the human enzyme is a mixture of two forms, one form is composed of two chains, x * 28000 + x * 52000, a second enzyme form, x * 10000 + x * 28000 + x * 40000 95422 3.4.21.38 30000 - x * 30000, SDS-PAGE 731674 3.4.21.38 31000 - 1 * 31000 + 1 * 52000, SDS-PAGE 95410 3.4.21.38 40000 - the human enzyme is a mixture of two forms, one form is composed of two chains, x * 28000 + x * 52000, a second enzyme form, x * 10000 + x * 28000 + x * 40000 95422 3.4.21.38 46000 - 1 * 28000 + 1 * 46000, heavy chain and light chain held together by disulfide bonds 95405 3.4.21.38 52000 - 1 * 31000 + 1 * 52000, SDS-PAGE 95410