期刊
JOURNAL OF PROTEOMICS
卷 197, 期 -, 页码 42-52出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jprot.2019.02.008
关键词
Protein-protein interaction; Proteomics; Network; DUSP12
资金
- Sao Paulo Research Foundation-FAPESP, Sao Paulo-Brazil [2008/58264-5, 2015/03983.0, 2018/01753-6]
Dual Specificity Phosphatase 12 is a member of the Atypical DUSP Protein Tyrosine Phosphatase family, meaning that it does not contain typical MAP kinase targeting motifs, while being able to dephosphorylate tyrosine and serine/threonine residues. DUSP12 contains, apart from its catalytic domain, a zinc finger domain, making it one of the largest DUSPs, which displays strong nuclear expression in several tissues. In this work we identified nuclear targets of DUSP12 in two different cancer cell lines (A549 and MCF-7), challenging them with genotoxic stimuli to observe the effect on the networks and to link existing information about DUSP12 functions to the data obtained though mass spectrometry. We found network connections to the cytoskeleton (e.g. IQGAP1), to the chromatin (e.g. HP1BP3), to the splicing machinery and to the previously known pathway of ribosome maturation (e.g. TC0F1), which draw insight into many of the functions of this phosphatase, much likely connecting it to distinct, previously unknown genomic stability mechanisms.
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