anaerobically grown cells of escherichia coli harboring the plasmid pfrd63 over-produce fumarate reductase , a membrane-bound complex localized in the inner membrane of the cell , where this enzyme represents at least 90 % of the total membrane proteins ( b. d. lemire , j. j. robinson , and j. h. weiner ( 1982 ) j. bacteriol . 152 , 1126-1131 ) .
C0007634
cells
C0007603
membrane