" /> " /> " /> characterized. characterized. characterized. difracting to at least 2.5 Å resolution have been obtained and difracting to at least 2.5 Å resolution have been obtained and difracting to at least 2.5 Å resolution have been obtained and stearothermophilus methylates the N6 atom of the 3' adenine in stearothermophilus methylates the N6 atom of the 3' adenine in stearothermophilus methylates the N6 atom of the 3' adenine in the sequence 5'-ATCGAT-3'. M.BseCI crystals the sequence 5'-ATCGAT-3'. M.BseCI crystals the sequence 5'-ATCGAT-3'. M.BseCI crystals