Enzymatic synthesis of phenolic acid glucosyl esters to test activities on cholangiocarcinoma cells
作者:Eko Suyanto、Jaggaiah N. Gorantla、Maniganda Santi、Fatchiyah Fatchiyah、Mariena Ketudat-Cairns、Chutima Talabnin、James R. Ketudat Cairns
DOI:10.1007/s00253-023-12895-5
日期:2024.12
anti-proliferative assays, followed by an anti-migration assay for the selected phenolic acid glucosyl ester. Os9BGlu31 mutants produced higher yield and activity than wild-type enzymes on phenolic acids to produce phenolic acid glucosyl esters. Among these, gallic acid glucosyl ester (β-glucogallin) had the highest antioxidant activity and anti-proliferative activity in cholangiocarcinoma cells. It also inhibited
糖苷水解酶家族 1 (GH1) 酶主要催化水解反应,而水稻 Os9BGlu31 优先催化转糖基化,将一个葡萄糖基部分转移到另一个糖苷配基部分,通过保留机制形成新的糖基化化合物。在本研究中,Os9BGlu31 用于合成八种酚酸葡萄糖酯,并评估其在胆管癌细胞中的活性。对Os9BGlu31野生型及其突变体的转糖基化产物进行了检测、毫克级生产和纯化,并通过核磁共振波谱表征了它们的结构。通过抗氧化剂和抗增殖测定评估转糖基化产物,然后对选定的酚酸葡萄糖酯进行抗迁移测定。 Os9BGlu31 突变体比野生型酶对酚酸产生更高的产量和活性,以产生酚酸葡萄糖酯。其中,没食子酸葡萄糖酯(β-glucogallin)在胆管癌细胞中具有最高的抗氧化活性和抗增殖活性。它还抑制胆管癌细胞的迁移。我们的研究表明,水稻 Os9BGlu31 转葡萄糖苷酶是一种有前景的一步反应中生物活性化合物糖基化酶,并提供了 β-葡萄糖没食