Abstract
Synthetic analogues of N-methyl nicotinic acid, trigonelline, were prepared to test the structural features necessary for the induction of cellular arrest in G2 in Pisum sativum. Analogues that (1) were regioisomers of trigonelline, (2) possessed different 1,3-substituents, and (3) contained additional substituents on the pyridine ring were tested for their ability to induce cell arrest in G2 and to antagonize trigonelline induced arrest in G2. Only N-methyi-3-quinoline-carboxylic acid and 1-methyl nicotinamide induced cell arrest in G2, and 1-methyl-4-pyridine carboxylic acid and 1-methyl-2-pyridine carboxylic acid were effective trigonelline antagonists. These data further support a specific role for trigonelline in the induction of cell arrest in G2.
Published Version
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