2.1.1.113 ? x * 33000, SDS-PAGE -, 735063 2.1.1.113 ? x * 36847, MALDI-TOF mass spectrometry 485129 2.1.1.113 ? x * 50355, sequence calculation, x * 50000, recombinant enzyme, SDS-PAGE 694446 2.1.1.113 monomer 1 * 30000, about, recombinant enzyme, 1 * 32676, sequence calculation 705556 2.1.1.113 monomer 1 * 30000, about, recombinant enzyme, SDS-PAGE, 1 * 32111, sequence calculation 705556 2.1.1.113 additional information enzyme in a free state exists as a dimer. Introduction of substoichiometric amounts of DNA into the reaction mixture results in pronounced multimerization of the enzyme. However, addition of SAM in saturating concentration at an excess of the oligonucleotide duplex over BamHI Mtase converts most of the enzyme into a monomeric state 485137