Quantifying Kinase-Specific Phosphorylation Stoichiometry Using Stable Isotope Labeling In a Reverse In-Gel Kinase Assay.
Quantifying Kinase-Specific Phosphorylation Stoichiometry Using Stable Isotope Labeling In a Reverse In-Gel Kinase Assay.
复制标题
DOI:
10.1021/acs.analchem.6b02599
复制
发表时间:
2016-12-06
影响因子:
7.4
通讯作者:
Bieberich, Charles J.
中科院分区:
文献类型:
--
作者:
Li, Xiang;Cox, Jonathan T.;Huang, Weiliang;Kane, Maureen;Tang, Keqi;Bieberich, Charles J.
Despite recent advancements in large-scale phospho-proteomics, methods to quantify kinase-specific phosphorylation stoichiometry of protein substrates are lacking. We developed a method to quantify kinase-specific phosphorylation stoichiometry by combining the reverse in-gel kinase assay (RIKA) with high resolution LC-MS. Beginning with predetermined ratios of phosphorylated to non-phosphorylated Protein Kinase CK2 (CK2) substrate molecules, we employed 18O-ATP as the phosphate donor in a RIKA, then quantified the ratio of 18O-versus 16O-labeled tryptic phosphopeptide using high mass accuracy MS. We demonstrate that the phosphorylation stoichiometry determined by this method across a broad percent phosphorylation range correlated extremely well with the predicted value (correlation coefficient =0.99). This approach provides a quantitative alternative to antibody-based methods of determining the extent of phosphorylation of a substrate pool.
登录
查看更多内容
影响因子:
64.5
作者:
Huttlin EL;Jedrychowski MP;Elias JE;Goswami T;Rad R;Beausoleil SA;Villén J;Haas W;Sowa ME;Gygi SP
通讯作者:
Gygi SP
DOI:
10.1016/j.bbapap.2013.03.009
发表时间:
2014-01
影响因子:
3.2
作者:
Hu, Jianfei;Rho, Hee-Sool;Newman, Robert H.;Hwang, Woochang;Neiswinger, John;Zhu, Heng;Zhang, Jin;Qian, Jiang
通讯作者:
Qian, Jiang
影响因子:
4.8
作者:
Padmanabhan, Achuth;Li, Xiang;Bieberich, Charles J.
通讯作者:
Bieberich, Charles J.
影响因子:
7.3
作者:
Olsen, Jesper V.;Vermeulen, Michiel;Mann, Matthias
通讯作者:
Mann, Matthias
影响因子:
4.4
作者:
Jin, Lily L.;Tong, Jiefei;Moran, Michael F.
通讯作者:
Moran, Michael F.