Synthesis of cyclic di-nucleotidic acids as potential inhibitors targeting diguanylate cyclase
作者:Shi Min Ching、Wan Jun Tan、Kim Lee Chua、Yulin Lam
DOI:10.1016/j.bmc.2010.07.068
日期:2010.9
Five analogs of cyclic di-nucleotidic acid including c-di-GMP were synthesized and evaluated for their biological activities on Slr1143, a diguanylate cyclase of Synechocystis sp. Slr1143 was overexpressed from the recombinant plasmid which contained the gene of interest and subsequently purified by affinity chromatography. A new HPLC method capable of separating the compound and product peaks with good resolution was optimized and applied to the analysis of the compounds. Results obtained show that cyclic di-inosinylic acid 1b demonstrates a stronger inhibition on Slr1143 than c-di-GMP and is a potential inhibitor for biofilm formation. (c) 2010 Elsevier Ltd. All rights reserved.