1.1.9.1 ? x * 72630, calculated, x * 73262, MALDI-TOF including heme c 1.1.9.1 monomer 1 * 65000, SDS-PAGE 1.1.9.1 monomer 1 * 71000, SDS-PAGE, 1 * 73200, calculated 1.1.9.1 monomer ADH IIB, 1 * 69000, SDS-PAGE. ADH IIG, 1 * 72000, SDS-PAGE