1.3.1.20 ? x * 36000, SDS-PAGE 655321 1.3.1.20 dimer - 349242, 349258, 684150 1.3.1.20 dimer 2 * 33000 (DD3), 2 * 35000 (DD4), SDS-PAGE 349246 1.3.1.20 dimer 2 * 36000, SDS-PAGE 286127 1.3.1.20 dimer 2 * 39000, F1, SDS-PAGE 349240 1.3.1.20 dimer 2 * 39000, SDS-PAGE 349237, 349254 1.3.1.20 dimer site-directed mutagenesis has demonstrated that the intact dimer is not essential for catalytic activity 701119 1.3.1.20 dimer x-ray crystallography 684150, 686023 1.3.1.20 dimer X-ray crystallography, the intact dimer is not essential for catalytic activity 689972 1.3.1.20 monomer 1 * 32000, DD3, and 1 * 36000, DD4, SDS-PAGE 349243