4.1.3.16 ? x * 30000, SDS-PAGE 746641 4.1.3.16 ? x * 32466, mass spectrometry 747772 4.1.3.16 ? x * 32553, electrospray ionization mass spectrometry 746641 4.1.3.16 dimer and tetramer, in equilibrium, 2 * 35249, calculated 723542 4.1.3.16 tetramer 4 * 35249, calculated 721727 4.1.3.16 tetramer 4 * 35700, SDS-PAGE 5255 4.1.3.16 tetramer 4 * 36000, SDS-PAGE, amino acid composition, kidney enzyme 5255 4.1.3.16 tetramer and dimer, in equilibrium, 4 * 35249, calculated 723542