3EGE TRANSFERASE, YP_324569.1, PUTATIVE METHYLTRANSFERASE FROM ANTIBIOTIC BIOSYNTHESIS PATHWAY, STRUCTURAL GENOMICS, JOINT CENTER FOR STRUCTURAL GENOMICS, JCSG, PROTEIN STRUCTURE INITIATIVE, PSI-2, METHYLTRANSFERASE DOMAIN CRYSTAL STRUCTURE OF PUTATIVE METHYLTRANSFERASE FROM ANTIBIOTIC BIOSYNTHESIS PATHWAY (YP_324569.1) FROM ANABAENA VARIABILIS ATCC 29413 AT 2.40 A RESOLUTION