Construction of a Quantitative Acetylomic Tissue Atlas in Rice (Oryza sativa L.)

文献类型： 外文期刊

第一作者： Li, Zhiyong

作者： Li, Zhiyong;Wang, Yifeng;Bello, Babatunde Kazeem;Ajadi, Abolore Adijat;Tong, Xiaohong;Zhang, Jian;Chang, Yuxiao

作者机构：

关键词： Rice (Oryza sativa L); protein lysine acetylation; proteome; tissue atlas; post-translational modification

期刊名称：MOLECULES （ 影响因子：4.411； 五年影响因子：4.587 ）

ISSN： 1420-3049

年卷期： 2018 年 23 卷 11 期

页码：

收录情况： SCI

摘要： PKA (protein lysine acetylation) is a key post-translational modification involved in the regulation of various biological processes in rice. So far, rice acetylome data is very limited due to the highly-dynamic pattern of protein expression and PKA modification. In this study, we performed a comprehensive quantitative acetylome profile on four typical rice tissues, i.e., the callus, root, leaf, and panicle, by using a mass spectrometry (MS)-based, label-free approach. The identification of 1536 acetylsites on 1454 acetylpeptides from 890 acetylproteins represented one of the largest acetylome datasets on rice. A total of 1445 peptides on 887 proteins were differentially acetylated, and are extensively involved in protein translation, chloroplast development, and photosynthesis, flowering and pollen fertility, and root meristem activity, indicating the important roles of PKA in rice tissue development and functions. The current study provides an overall view of the acetylation events in rice tissues, as well as clues to reveal the function of PKA proteins in physiologically-relevant tissues.

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