TRANSFERASE, MODIFICATION METHYLASE, METHYLTRANSFERASE, S- ADENOSYLMETHIONINE, THERMUS THERMOPHILUS, STRUCTURAL GENOMICS, NPPSFA, NATIONAL PROJECT ON PROTEIN STRUCTURAL AND FUNCTIONAL ANALYSES, RIKEN STRUCTURAL GENOMICS/PROTEOMICS INITIATIVE, RSGI 2ZIE CRYSTAL STRUCTURE OF TTHA0409, PUTATATIVE DNA MODIFICATION METHYLASE FROM THERMUS THERMOPHILUS HB8- SELENOMETHIONINE DERIVATIVE