Literature DB >> 34951099

Quantitative proteomics revealed new functions of ALKBH4.

Kailin Yu1, Tianyu F Qi2, Weili Miao1, Xiaochuan Liu1, Yinsheng Wang1.   

Abstract

ALKBH4 is a versatile demethylase capable of catalyzing the demethylation of monomethylated lysine-84 on actin and N6 -methyladenine in DNA. In this study, we conducted a quantitative proteomic experiment to reveal the altered expression of proteins in HEK293T cells upon genetic ablation of ALKBH4. Our results showed markedly diminished levels of GSTP1 and HSPB1 proteins in ALKBH4-depleted cells, which emanate from an augmented expression level of DNA (cytosine-5)-methyltransferase 1 (DNMT1) and the ensuing elevated cytosine methylation in the promoter regions of GSTP1 and HSPB1 genes. Together, our results revealed a role of ALKBH4 in modulating DNA cytosine methylation through regulating the expression level of DNMT1 protein.
© 2022 Wiley-VCH GmbH.

Entities:  

Keywords:  SILAC; bisulfite sequencing; cytosine methylation; mass spectrometry; parallel-reaction monitoring; post-translational modification; quantitative proteomics

Mesh：

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Year:  2022        PMID： 34951099      PMCID： PMC8983452          DOI： 10.1002/pmic.202100231

Source DB:  PubMed          Journal:  Proteomics        ISSN： 1615-9853            Impact factor:   3.984


  19 in total

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