MAT MSEYSVFTSESVSEGHPDKIADQISDAVLDAIIAKDKYARVACETLVKTGVAIIAGEVTTSAWVDLEELVRKVIIDIGYDSSDVGFDGATCGVLNIIGKQSVDINQGVDRAKPEDQGAGDQGLMFGYASNETDVLMPAPICFSHRLVERQAEARKSGLLPWLRPDAKSQVTCRYEGGKVVGIDAVVLSTQHNPEVSYNDLRDGVMELIIKQVLPAELLHKDTQFHINPTGNFVIGGPVGDCGLTGRKIIVDSYGGMARHGGGAFSGKDPSKVDRSAAYAGRYVAKNIVAAGLAERCEIQVSYAIGVAQPTSISINTFGTGKVSDEKIVQLVREHFDLRPYAITKMLDLLHPMYQPTAAYGHFGRHPFELTVDGDTFTAFTWEKTDKAALLRDAAGL PA0546 Methionine adenosyltransferase metK 396 METK_PSEAE Catalyzes the formation of S-adenosylmethionine from methionine and ATP. The overall synthetic reaction is composed of two sequential steps, AdoMet formation and the subsequent tripolyphosphate hydrolysis which occurs prior to release of AdoMet from the enzyme (By similarity). S-adenosylmethionine synthase