>3E4Q_1|Chains A, B|C4-dicarboxylate transport sensor protein dctB|Sinorhizobium meliloti (382) MGSSHHHHHHSSGLVPRGSHMASMTGGEEMGRGSLLLARDYGRSQALAGLAGQSRIDASLKASLLRAVVERQRALPLVLADDAAIRGALLSPDRPSLDRINRKLEALATSAEAAVIYLIDRSGVAVAASNWQEPTSFVGNDYAFRDYFRLAVRDGMAEHFAMGTVSKRPGLYISRRVDGPGGPLGVIVAKLEFDGVEADWQASGKPAYVTDRRGIVLITSLPSWRFMTTKPIAEDRLAPIRESLQFGDAPLLPLPFRKIEARPDGSSTLDALLPGDSTAAFLRVETMVPSTNWRLEQLSPLNAPL