>sp|A3PPW0|METK_CERS1 S-adenosylmethionine synthase OS=Cereibacter sphaeroides GN=metK MSRMNYVFTSESVSEGHPDKLCDRVSDAVLDTFLAEEPTARVACETFATTGRVVVGGEVG LSDPQKLDEFMERVDGIVRDCVKDIGYEQQEFHWRTIEVQNFLHRQSAHIAQGVDKDGAG DQGIMFGYACRETPELMPAPIQYSHAILRRLAEVRKSGQEPDLRPDAKSQLSLRYENGKP VEVRSIVLSTQHAHEEQTSDDIRAIVEPYIREVLPEGWITEATEWWVNPTGTFVIGGPDG DAGLTGRKIIVDTYGGAAPHGGGAFSGKDPTKVDRSAAYAARYLAKNVVAAGLAERCTLQ VSYAIGVAKPLSIYVDTHGTGQVDAAQIEKAVADCMDLTPRGIREHLNLCRPIYARTSAY GHFGRAPEADGGFSWERTDLTDALLKAV