Comprehensive study of protein phosphorylation, acetylation, ubiquitination and S-nitrosylation profiles in pre- and post-rigor meat

文献类型： 外文期刊

第一作者： Ren, Chi

作者： Ren, Chi;Bai, Yuqiang;Zhang, Yejun;Hou, Chengli;Chen, Li;Li, Xin;Wang, Zhenyu;Zhang, Dequan;Morton, James D.

作者机构：

关键词： Meat; Pre-rigor; Post-rigor; Protein post-translational modifications

期刊名称：FOOD SCIENCE AND HUMAN WELLNESS （ 影响因子：7.4； 五年影响因子：7.8 ）

ISSN：

年卷期： 2025 年 14 卷 6 期

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收录情况： SCI

摘要： This study investigated the integrated atlas of protein phosphorylation, acetylation, ubiquitination and S-nitrosylation in pre-rigor (0.5 h) and post-rigor (5 days) lamb to interpret the roles of protein post-translational modifications (PTMs) during meat aging. The results showed that the most common PTMs in postmortem meat were phosphorylated proteins. PTMs regulation during the postmortem period altered proteins involved in metabolic pathways and muscle contraction. The phosphorylation and ubiquitination of proteins located in mitochondria and nuclear changed significantly between 0.5 h and 5 days postmortem. Gene set enrichment analysis revealed possible roles of total PTMs proteins, with a general downregulation of phosphorylation, acetylation and ubiquitination. There was a weak correlation in the lysine PTM of acetylation and ubiquitination at the same site in postmortem meat. Multiple PTMs of proteins in glycolysis, TCA cycle, muscle contraction and the calcium signaling pathway cooperatively regulate meat quality development from pre-rigor to post-rigor.

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