>sp|A1VAN1|NIKR_DESVV Putative nickel-responsive regulator OS=Desulfovibrio vulgaris subsp. vulgaris GN=Dvul_0474 MGRTIRFGVSLDSELLDKFDVLCDERCYQTRSEAIRDLIRNTLVQQEWEDTDREIAGTLT LVYDHHKSDLAQRLTEIQHDVHDIIITSLHVHLDHYNCLEVLVLKGPGQQVRNLAQRLIS TKGVKHGKLSLTTTGQDLT