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Global Lysine Crotonylation Profiling of Mouse Liver.
Proteomics ( IF 3.4 ) Pub Date : 2020-08-31 , DOI: 10.1002/pmic.202000049
Jiang-Feng Liu 1 , Song-Feng Wu 2 , Shu Liu 2 , Xin Sun 1 , Xiao-Man Wang 1 , Ping Xu 2 , Hou-Zao Chen 1 , Jun-Tao Yang 1
Affiliation  

Lysine crotonylation (Kcr) is a recently discovered post‐translational modification that potentially regulates multiple biological processes. With an objective to expand the available crotonylation datasets, LC‐MS/MS is performed using mouse liver samples under normal physiological conditions to obtain in vivo crotonylome. A label‐free strategy is used and 10 034 Class I (localization probabilities > 0.75) crotonylated sites are identified in 2245 proteins. The KcrE, KcrD, and EKcr motifs are significantly enriched in the crotonylated peptides. The identified crotonylated proteins are mostly enzymes and primarily located in the cytoplasm and nucleus. Functional enrichment analysis based on Gene Ontology and Kyoto Encyclopedia of Genes and Genomes shows that the crotonylated proteins are closely related to the purine‐containing compound metabolic process, ribose phosphate metabolic process, carbon metabolism pathway, ribosome pathway, and a series of metabolism‐associated biological processes. To the best of the authors' knowledge, this research provides the first report on the mouse liver crotonylome. Furthermore, it offers additional evidence that crotonylation exists in non‐histone proteins, and is likely involved in various biological processes. The mass spectrometry proteomics data have been deposited in the ProteomeXchange Consortium with the dataset identifiers PXD019145.

中文翻译:

小鼠肝脏的全球赖氨酸巴豆酰化分析。

赖氨酸巴豆酰化 (Kcr) 是最近发现的一种翻译后修饰,可能调节多种生物过程。为了扩展可用的巴豆酰化数据集,在正常生理条件下使用小鼠肝脏样本进行 LC-MS/MS 以获得体内巴豆酰化组。使用无标记策略,在 2245 种蛋白质中鉴定了 10 034 个 I 类(定位概率 > 0.75)巴豆酰化位点。KcrE、KcrD 和 EKcr 基序在巴豆酰化肽中显着富集。鉴定出的巴豆酰化蛋白主要是酶,主要位于细胞质和细胞核中。基于Gene Ontology和Kyoto Encyclopedia of Genes and Genomes的功能富集分析表明,巴豆酰化蛋白与含嘌呤化合物代谢过程、磷酸核糖代谢过程、碳代谢途径、核糖体途径等一系列代谢相关生物过程。据作者所知,这项研究提供了关于小鼠肝脏巴豆素组的第一份报告。此外,它提供了额外的证据表明巴豆酰化存在于非组蛋白中,并且可能参与各种生物过程。质谱蛋白质组学数据已存放在 ProteomeXchange Consortium 中,数据集标识符为 PXD019145。以及一系列与代谢相关的生物过程。据作者所知,这项研究提供了关于小鼠肝脏巴豆素组的第一份报告。此外,它提供了额外的证据表明巴豆酰化存在于非组蛋白中,并且可能参与各种生物过程。质谱蛋白质组学数据已存放在 ProteomeXchange Consortium 中,数据集标识符为 PXD019145。以及一系列与代谢相关的生物过程。据作者所知,这项研究提供了关于小鼠肝脏巴豆素组的第一份报告。此外,它提供了额外的证据表明巴豆酰化存在于非组蛋白中,并且可能参与各种生物过程。质谱蛋白质组学数据已存放在 ProteomeXchange Consortium 中,数据集标识符为 PXD019145。
更新日期:2020-10-11
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