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SUV39H2 Methylates and Stabilizes LSD1 by Inhibiting Polyubiquitination in Human Cancer Cells

Lianhua Piao, Takehiro Suzuki, Naoshi Dohmae, Yusuke Nakamura, Ryuji Hamamoto

Oncotarget. 2015 Jul 10;6(19):16939-50.

PMID: 26183527

Abstract:

LSD1 is a histone lysine demethylase, which is highly expressed in multiple types of human cancer. Although its roles in transcriptional regulation have been well-studied, functional regulation of LSD1 by post-translational modifications still remains unknown. Here, we demonstrate that the histone lysine methyltransferase SUV39H2 trimethylated LSD1 on lysine 322. Knockdown of SUV39H2 resulted in a decrease of LSD1 protein even though the mRNA levels were unchanged. SUV39H2-induced LSD1 methylation suppresses LSD1 polyubiquitination and subsequent degradation. In addition, we also observed indirect effect of SUV39H2 overexpression on LSD1-target genes. Our results reveal the regulatory mechanism of LSD1 protein through its lysine methylation by SUV39H2 in human cancer cells.

Chemicals Related in the Paper:

Catalog Number Product Name Structure CAS Number Price
IAR42416095 SUV39H2 human SUV39H2 human Price
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