>sp|A1VGU5|DDL_NITV4 D-alanine--D-alanine ligase OS=Nitratidesulfovibrio vulgaris GN=ddl MKVLLIAGGWSSERDVSLAGARGIEKALRALGHDVTWFDPATSLDGLLEAASSHDFAFIN LHGSPGEDGLVQAMLDTAGCPYQGSGPAGSFLALNKAVSKQLLRRHGILTPDWAFLAARP AADWEPGLGYPLFVKPNTGGSSLCLSRVTQPEGLAPALEAVFAHCGEAIVEPAIPGVEVT CGVLGDTALPPILIRPAEGAFFDYTSKYTPGGATELCPAPLPAEVTAHVQDVTLRAHRLL GLRGYSRADYILRDDGALFLLEVNTLPGMTPTSLVPQEAAAIGLDFPALIARLIELGMTA AGR