3.2.2.20 19000 - gel filtration 646846 3.2.2.20 19000 - sucrose densitiy gradient centrifugation 646844 3.2.2.20 20000 - gel filtration 646847 3.2.2.20 21100 - - 646849, 646851, 646855 3.2.2.20 21100 - deduced from the nucleotide sequence of the tag gene 646850 3.2.2.20 21100 - SDS-PAGE 646857 3.2.2.20 22000 - gel filtration, Svedberg equation 646851 3.2.2.20 22500 - SDS-PAGE 646850 3.2.2.20 22703 - x * 22703, calculated from amino acid sequence 732445 3.2.2.20 28000 - x * 28000, AlkC, SDS-PAGE 670318