Fig. 3From: Engineering of Escherichia coli for Krebs cycle-dependent production of malic acidIdentification of the major malate-exporting permease. Candidate permeases were individually deleted in parent strain E. coli Δmdh Δmqo ΔackA-pta ΔmaeA ΔmaeB expressing pACT3w-ppcK620S (Sy280 = REF)Back to article page