Methylation of eukaryotic elongation factor 2 induced by basic fibroblast growth factor via mitogen-activated protein kinase. 2011

Gyung Ah Jung, and Bong Shik Shin, and Yeon Sue Jang, and Jae Bum Sohn, and Seon Rang Woo, and Jung Eun Kim, and Go Choi, and Kyung Mi Lee, and Bon Hong Min, and Kee Ho Lee, and Gil Hong Park
Department of Biochemistry, BK 21 Program, College of Medicine, Korea University, Seoul.

Protein arginine methylation is important for a variety of cellular processes including transcriptional regulation, mRNA splicing, DNA repair, nuclear/cytoplasmic shuttling and various signal transduction pathways. However, the role of arginine methylation in protein biosynthesis and the extracellular signals that control arginine methylation are not fully understood. Basic fibroblast growth factor (bFGF) has been identified as a potent stimulator of myofibroblast dedifferentiation into fibroblasts. We demonstrated that symmetric arginine dimethylation of eukaryotic elongation factor 2 (eEF2) is induced by bFGF without the change in the expression level of eEF2 in mouse embryo fibroblast NIH3T3 cells. The eEF2 methylation is preceded by ras-raf-mitogen-activated protein kinase kinase (MEK)-extracellular signal-regulated kinase (ERK1/2)- p21Cip/WAF1 activation, and suppressed by the mitogenactivated protein kinase (MAPK) inhibitor PD98059 and p21Cip/WAF1 short interfering RNA (siRNA). We determined that protein arginine methyltransferase 7 (PRMT7) is responsible for the methylation, and that PRMT5 acts as a coordinator. Collectively, we demonstrated that eEF2, a key factor involved in protein translational elongation is symmetrically arginine-methylated in a reversible manner, being regulated by bFGF through MAPK signaling pathway.

UI MeSH Term Description Entries
D008745 Methylation Addition of methyl groups. In histo-chemistry methylation is used to esterify carboxyl groups and remove sulfate groups by treating tissue sections with hot methanol in the presence of hydrochloric acid. (From Stedman, 25th ed) Methylations
D011484 Protein-Arginine N-Methyltransferases Enzymes that catalyze the methylation of arginine residues of proteins to yield N-mono- and N,N-dimethylarginine. This enzyme is found in many organs, primarily brain and spleen. Protein Arginine Methyltransferase,Protein Methylase I,Protein Methyltransferase I,Protein-Arginine N-Methyltransferase,(Myelin Basic Protein)-Arginine N-Methyltransferase,Arginine Methylase,Myelin Basic Protein (Arginine) Methyltransferase,Type I Protein Arginine Methyltransferase,Type I Protein Arginine N-Methyltransferase,Type II Protein Arginine Methyltransferase,Arginine Methyltransferase, Protein,Methyltransferase, Protein Arginine,Protein Arginine N Methyltransferase,Protein Arginine N Methyltransferases,Type I Protein Arginine N Methyltransferase
D011496 Protein Methyltransferases Enzymes that catalyze the methylation of amino acids after their incorporation into a polypeptide chain. S-Adenosyl-L-methionine acts as the methylating agent. EC 2.1.1. Protein Methylase,Protein Methylases,Protein Methyltransferase,Methylase, Protein,Methylases, Protein,Methyltransferase, Protein,Methyltransferases, Protein
D005347 Fibroblasts Connective tissue cells which secrete an extracellular matrix rich in collagen and other macromolecules. Fibroblast
D005419 Flavonoids A group of phenyl benzopyrans named for having structures like FLAVONES. 2-Phenyl-Benzopyran,2-Phenyl-Chromene,Bioflavonoid,Bioflavonoids,Flavonoid,2-Phenyl-Benzopyrans,2-Phenyl-Chromenes,2 Phenyl Benzopyran,2 Phenyl Benzopyrans,2 Phenyl Chromene,2 Phenyl Chromenes
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D001120 Arginine An essential amino acid that is physiologically active in the L-form. Arginine Hydrochloride,Arginine, L-Isomer,DL-Arginine Acetate, Monohydrate,L-Arginine,Arginine, L Isomer,DL Arginine Acetate, Monohydrate,Hydrochloride, Arginine,L Arginine,L-Isomer Arginine,Monohydrate DL-Arginine Acetate
D016222 Fibroblast Growth Factor 2 A single-chain polypeptide growth factor that plays a significant role in the process of WOUND HEALING and is a potent inducer of PHYSIOLOGIC ANGIOGENESIS. Several different forms of the human protein exist ranging from 18-24 kDa in size due to the use of alternative start sites within the fgf-2 gene. It has a 55 percent amino acid residue identity to FIBROBLAST GROWTH FACTOR 1 and has potent heparin-binding activity. The growth factor is an extremely potent inducer of DNA synthesis in a variety of cell types from mesoderm and neuroectoderm lineages. It was originally named basic fibroblast growth factor based upon its chemical properties and to distinguish it from acidic fibroblast growth factor (FIBROBLAST GROWTH FACTOR 1). Basic Fibroblast Growth Factor,Fibroblast Growth Factor, Basic,HBGF-2,Cartilage-Derived Growth Factor,Class II Heparin-Binding Growth Factor,FGF-2,FGF2,Fibroblast Growth Factor-2,Heparin-Binding Growth Factor Class II,Prostate Epithelial Cell Growth Factor,Prostatropin,Cartilage Derived Growth Factor,FGF 2
D050759 Cyclin-Dependent Kinase Inhibitor p21 A cyclin-dependent kinase inhibitor that mediates TUMOR SUPPRESSOR PROTEIN P53-dependent CELL CYCLE arrest. p21 interacts with a range of CYCLIN-DEPENDENT KINASES and associates with PROLIFERATING CELL NUCLEAR ANTIGEN and CASPASE 3. CDK2-Associated Protein 20 kDa,CDKN1 Protein,CDKN1A Protein,Cdk-Interacting Protein 1,Cdk2 Inhibitor Protein,Cell Cycle Regulator p21,Cyclin Kinase Inhibitor p21,Cyclin-Dependent Kinase Inhibitor 1A Protein,Senescent Cell-Derived Inhibitor Protein 1,p21 Cell Cycle Regulator,p21 Cyclin Kinase Inhibitor,CDK2 Associated Protein 20 kDa,Cdk Interacting Protein 1,Cyclin Dependent Kinase Inhibitor 1A Protein,Cyclin Dependent Kinase Inhibitor p21,Senescent Cell Derived Inhibitor Protein 1
D051379 Mice The common name for the genus Mus. Mice, House,Mus,Mus musculus,Mice, Laboratory,Mouse,Mouse, House,Mouse, Laboratory,Mouse, Swiss,Mus domesticus,Mus musculus domesticus,Swiss Mice,House Mice,House Mouse,Laboratory Mice,Laboratory Mouse,Mice, Swiss,Swiss Mouse,domesticus, Mus musculus

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