. "The directed movement of a C4-dicarboxylate into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore. A C4-dicarboxylate is the anion of a dicarboxylic acid that contains four carbon atoms." . . "C4-dicarboxylate transport" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .