Cell Cycle Regulation by the PRMT6 Arginine Methyltransferase Through Repression of Cyclin-dependent Kinase Inhibitors

Overview

Journal PLoS One

Specialties General Medicine
Science

Date 2012 Aug 24

PMID 22916108

Citations 34

Authors

Markus A Kleinschmidt

Petra de Graaf

Hetty A A M van Teeffelen

H Th Marc Timmers

Affiliations

Soon will be listed here.

Abstract

PRMT6 belongs to the family of Protein Arginine Methyltransferase (PRMT) enzymes that catalyze the methylation of guanidino nitrogens of arginine residues. PRMT6 has been shown to modify the tail of histone H3, but the in vivo function of PRMT6 is largely unknown. Here, we show that PRMT6 regulates cell cycle progression. Knockdown of PRMT6 expression in the human osteosarcoma cell line U2OS results in an accumulation of cells at the G2 checkpoint. Loss of PRMT6 coincides with upregulation of p21 and p27, two members of the CIP/KIP family of cyclin-dependent kinase (CDK) inhibitors. Gene expression and promoter analysis show that p21 and p27 are direct targets of PRMT6, which involves methylation of arginine-2 of histone H3. Our findings imply arginine methylation of histones by PRMT6 in cell cycle regulation.

Citing Articles

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Protein arginine methyltransferase 6 is a novel substrate of protein arginine methyltransferase 1.

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The Emerging Role of PRMT6 in Cancer.

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