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Figure 5 | BMC Microbiology

Figure 5

From: New function for Escherichia coli xanthosine phophorylase (xapA): genetic and biochemical evidences on its participation in NAD+ salvage from nicotinamide

Figure 5

Consumption of extracellular NAM (A) to form intracellular NAD + (B) by four strains of Escherichia coli derived from BW25113 cultured in M9/NAM medium until the strain BW25113Δ nadC Δ pncA reached the mid-log phase. Strain 1, BW25113ΔnadC ΔpncA; strain 2, BW25113ΔnadC ΔpncA ΔxapA; strain 3, BW25113ΔnadC ΔpncA ΔxapA/pBAD-xapA; and strain 4, BW25113ΔnadC ΔpncA ΔxapA/pBAD-EGFP.

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