Responsible for the transport of C4-dicarboxylates from the periplasm across the inner membrane (By similarity). dcuA 132 Anaerobic C4-dicarboxylate transporter DcuA (Fragment) MLAVELVIVLLAIFLGARLGGIGIGFAGGLGVLALALIGVKPGNIPFDVISIIMAVIAAISAMQVAGGMDYLVQQTEKLLRKNPKHITILAPIVTYFLTIFAGTGNISLSALPVIAEVAKEQGIKPCRPLST DCUA_SERMA