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Fig. 5 | Gut Pathogens

Fig. 5

From: Validating the inhibitory effects of d- and l-serine on the enzyme activity of d-3-phosphoglycerate dehydrogenases that are purified from Pseudomonas aeruginosa, Escherichia coli and human colon

Fig. 5

Inhibitory effect of l-serine on the PGDH activity. The optimal activity (mU/mg) of each PGDH was determined by performing the assay with different concentrations of l-serine. The assay was performed in triplicate. Data are shown as the ratio of the PGDH activity in the presence of l-serine to that without l-serine and is expressed as the mean % ± SD. a Significance difference in activity was observed between P. aeruginosa PGDH without serine and P. aeruginosa PGDH in the presence of 240 mM, 480 mM, and 960 mM serine (*P < 0.05), but not between P. aeruginosa PGDH without serine and P. aeruginosa PGDH in the presence of 120 mM serine (ns: not significant, P > 0.05). b A significant difference was observed between E. coli PGDH without serine and E. coli PGDH in the presence of 60 mM, 120 mM, 240 mM, 480 mM, and 960 mM serine (*P < 0.05). c A significant difference was not observed between human PGDH without serine and human PGDH in the presence of 1 mM, 10 mM, and 100 mM serine (ns)

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Gut Pathogens

ISSN: 1757-4749