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. 2004 Mar;186(6):1629–1637. doi: 10.1128/JB.186.6.1629-1637.2004

FIG. 3.

FIG. 3.

tcuABC functions allow growth of E. coli K-12 on citrate (A) or tricarballylate (B). In all graphs, pBAD30 is the empty cloning vector. (A) Cells were grown aerobically in NCE medium containing citrate (20 mM). Open triangles, growth response of E. coli strain K-12 on citrate medium containing 500 μM l-(+)-arabinose; closed circles, growth response of E. coli strain K-12 with tcuC+ provided in trans (plasmid pTCU5) in medium lacking l-(+)-arabinose; open diamonds, growth response of the same strain in medium containing 500 μM l-(+)-arabinose. (B) Cells were grown aerobically in NCE medium containing tricarballylate (20 mM). Solid triangles, growth response of a S. enterica strain with a wild-type tcuRABC+ set of genes (strain JE2397); open triangles, growth response of E. coli strain K-12 carrying empty cloning vector pBAD30 in medium supplemented with 500 μM l-(+)-arabinose; solid circles, growth response of E. coli strain K-12 carrying plasmid pTCU21 (tcuABC+) in medium lacking l-(+)-arabinose; open diamonds, growth response of the same strain in medium containing 250 μM l-(+)-arabinose.