“…It has been shown that the synthesis of pteroylglutamic acid from p-aminobenzoic acid is the site of sulfonamide inhibition in the organism S. fecales It (51). p-Aminobenzoic acid may be utilized in other ways than in the formation of pteroylglutamic acid, however, since the latter substance has less than 0.001 per cent of the activity of p-aminobenzoic acid for a mutant strain of Escherichia coli (52).…”
Section: Physiological Aspects Of the Pterinsmentioning
“…It has been shown that the synthesis of pteroylglutamic acid from p-aminobenzoic acid is the site of sulfonamide inhibition in the organism S. fecales It (51). p-Aminobenzoic acid may be utilized in other ways than in the formation of pteroylglutamic acid, however, since the latter substance has less than 0.001 per cent of the activity of p-aminobenzoic acid for a mutant strain of Escherichia coli (52).…”
Section: Physiological Aspects Of the Pterinsmentioning
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