2.1.1.224 ? x * 37000, SDS-PAGE 704203 2.1.1.224 monomer Cfr in solution, secondary structure analysis, circular dichroism spectroscopy and analytical gel filtration, overview 720968 2.1.1.224 ? x * 41085, electrospray mass spectrometry 735095 2.1.1.224 ? x * 41088, fully methylated protein, calculated from amino acid sequence 735095