2.7.2.8 ? dimer or tetramer, 1 or 2 * 43000 + 1 or 2 * 53000, SDS-PAGE 642358 2.7.2.8 ? x * 29000, SDS-PAGE 642355 2.7.2.8 ? x * 52000, SDS-PAGE 390290 2.7.2.8 dimer - 723511 2.7.2.8 dimer 2 * 30000, SDS-PAGE 642361 2.7.2.8 dimer crystalline structure 642363 2.7.2.8 hexamer - -, 702066, 760403 2.7.2.8 hexamer 6 * 30341, MALDI-TOF MS, 6 * 30344, calculated 659050 2.7.2.8 hexamer 6 * 32000, calculated 659433 2.7.2.8 hexamer three homodimers are linked to form a ring-like hexamer 675366