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S-nitrosylation of GAPDH during PMA-induced monocyte/macrophage differentiation

机译:在PMA诱导的单核细胞/巨噬细胞分化过程中GAPDH的S-亚硝基化

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S-nitrosylation, the redox-based modification of Cys thiol side chains by nitric oxide, is an important mechanism for dynamic, post-translational regulation of many proteins. Here we described that glyceraldehyde-3-phosphate dehydrogenase ( GAPDH ) was strongly S-nitrosylated upon differentiation of human monocytic leukemia U937 cells to macrophages induced by phorbol-12-myristate-13-acetate (PMA), which was associated with increased concentration of intracellular nitric oxide (NO). Our results suggest that S-nitrosylated GAPDH (GAPDH-SNO) may play a role in regulating monocyte/macrophage differentiation.
机译:S-亚硝基化是一氧化氮对Cys硫醇侧链进行的基于氧化还原的修饰,是许多蛋白质动态,翻译后调节的重要机制。在这里我们描述了甘油三磷酸甘油醛脱氢酶(GAPDH)在人类单核细胞白血病U937细胞分化为由佛波醇12-肉豆蔻酸酯13-乙酸酯(PMA)诱导的巨噬细胞后被强烈S-亚硝基化,这与增加浓度的细胞内一氧化氮(NO)。我们的结果表明,S-亚硝基化的GAPDH(GAPDH-SNO)可能在调节单核细胞/巨噬细胞分化中发挥作用。

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