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Comprehensive Profiling for Histone H4 of Human Liver Cells Using High Resolution LTQ-Orbitrap Mass Spectrometry
  • ISSN号:1001-604X
  • 期刊名称:《中国化学:英文版》
  • 时间:0
  • 分类:Q581[生物学—生物化学] Q343.2[生物学—遗传学]
  • 作者机构:[1]Department of Chemistry and Institute of Biomedical Sciences, Fudan University, Shanghai 200433, China, [2]State Key Laboratory ofProteomics, Beijing Proteome Research Center, Beijing Institute of Radiation Medicine, Beijing 102206, China
  • 相关基金:Project supported by the National Science and Technology Key Project (No. 2009CB825607), National Natural Science Foundation of China (Nos. 20875016, 31070732), Ministry of Education of China (20080246011), Shanghai Projects (Shuguang Eastern Scholar and B 109).
中文摘要:

histone 变体的翻译修正正在玩的帖子在 chro- 早课,基因活动的规定和疾病的诊断的结构的一个重要角色,和进行的深入的研究和发现新地点取决于新、合理的分析方法到某程度。在这个工作,高分辨率 LTQ-Orbitrap 集体 spectrometry 和多重酶的组合方法被采用识别柱子人的肝房间的 histone H4 的翻译修正(PTM ) 。新奇 methylation 地点, argnine 67 (R 67 ) ,除以前报导例如离氨酸 31 的一些地点(K 31 ) 以外被观察,离氨酸 44 (K 44 ) , argnine 55 (R 55 ) 并且离氨酸 59 (K 59 ) 在全球领域。同时,离氨酸 5 的 acetylation ( K 5 )的各种各样的联合,离氨酸 8 ( K 8 ),离氨酸 12 ( K 12 ),离氨酸 16 ( K 16 )并且在NH2终端尾巴的离氨酸 20 的 methylation ( K 20 )也在胰岛素, Arg-C , Glu-C 和糜蛋白酶文摘的 LC-MS/MS 分析以后被识别。

英文摘要:

The post translational modifications of histone variants are playing an important role in the structure of chromatin, the regulation of gene activities and the diagnosis of diseases, and conducting in-depth researches and discovering new sites depend on new and rational analytical methods to some extent. In this work, the combinatorial method of high resolution LTQ-Orbitrap mass spectrometry and multiple enzymes was employed to identify the post translational modifications (PTMs) of histone H4 of human liver cells. The novel methylation site, argnine 67 (R 67), was observed besides some sites reported previously such as lysine 31 (K 31), lysine 44 (K 44), argnine 55 (R 55) and lysine 59 (K 59) in the global domain. Meanwhile, various combinations of acetylation of lysine 5 (K 5), lysine 8 (K 8), lysine 12 (K 12), lysine 16 (K 16) and methylation of lysine 20 (K 20) in the NH2-terminal tails were also identified after the LC-MS/MS analysis of trypsin, Arg-C, Glu-C and chymotrypsin digests.

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期刊信息
  • 《中国化学:英文版》
  • 主管单位:
  • 主办单位:中国化学会
  • 主编:
  • 地址:上海市枫林路354号中科院上海有机化学研究所
  • 邮编:200032
  • 邮箱:
  • 电话:021-54925243
  • 国际标准刊号:ISSN:1001-604X
  • 国内统一刊号:ISSN:31-1547/O6
  • 邮发代号:4-646
  • 获奖情况:
  • 中国期刊方阵“双高”期刊
  • 国内外数据库收录:
  • 美国化学文摘(网络版),荷兰文摘与引文数据库,美国科学引文索引(扩展库),日本日本科学技术振兴机构数据库,英国英国皇家化学学会文摘
  • 被引量:175