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Table 2 Intracellular and extracellular concentration of 6-hydroxymethylpterin and folate in L. plantarum harboring pNZ7021 and pNZ7026 in the presence and absence of pABA

From: Physiological responses to folate overproduction in Lactobacillus plantarum WCFS1

   6-Hydroxymethylpterin (nmol/50-ml culture) Folate μg/L per OD600 unit
L. plantarum harboring μmax h-1 Intracellular Extracellular Intracellular Extracellular
pNZ7021 0.61 (0.02) 0.1 NDa ND ND
pNZ7021 + p ABA 0.60 (0.02) 0.1 NDa 3.93 (1) 8.56 (3)
pNZ7026 0.45 0.02) 3.0 1692 ND ND
pNZ7026 + p ABA 0.44 (0.01) 0.2 217 216 (29) 3020 (202)
  1. a ND, not detectable
  2. Note: The standard deviation of the folate assay is shown between brackets.