>sp|Q3JEI2|TYSY_NITOC Thymidylate synthase OS=Nitrosococcus oceani GN=thyA MKPYLELIQKILDTGVERDDRTGTGTWSIFGHQMRFDLRQGFPLITTKKLHIRAIFIELL WFLRGETNVKYLHDHGVTIWDEWADEQGELGPIYGYQWRSWPLPDGGYLDQMAKTLTQIR NHPHSRRHVVVAYNPACVDEMALPPCHALFQFYVAQGRLSCQLYQRSADVFLGVPFNIAS YALLTHLIAQQCDLDVGEFVWTGGDVHLYRNHLEPARLQLTREPLSLPHLRIKRRPPSLF EYQYDDLEIVDYQSYPAIKAAISV