>tr|B7N451|B7N451_ECOLU Thymidine kinase OS=Escherichia coli O17:K52:H18 GN=tdk
MAQLYFYYSAMNAGKSTALLQSSYNYQERGMRTVVYTAEIDDRFGAGKVSSRIGLSSPAK
LFNQNSSLFDEIRAEHEQQAIHCVLVDECQFLTRQQVYELSEVVDQLDIPVLCYGLRTDF
RGELFIGSQYLLAWSDKLVELKTICFCGRKASMVLRLDQAGRPYNEGEQVVIGGNERYVS
VCRKHYKEALEVGSLTAIQERHRHD