| Structural highlights
Function
CARM1_MOUSE Methylates (mono- and asymmetric dimethylation) the guanidino nitrogens of arginyl residues in several proteins involved in DNA packaging, transcription regulation, pre-mRNA splicing, and mRNA stability. Recruited to promoters upon gene activation together with histone acetyltransferases from EP300/P300 and p160 families, methylates histone H3 at 'Arg-17' (H3R17me), forming mainly asymmetric dimethylarginine (H3R17me2a), leading to activates transcription via chromatin remodeling. During nuclear hormone receptor activation and TCF7L2/TCF4 activation, acts synergically with EP300/P300 and either one of the p160 histone acetyltransferases NCOA1/SRC1, NCOA2/GRIP1 and NCOA3/ACTR or CTNNB1/beta-catenin to activate transcription. During myogenic transcriptional activation, acts together with NCOA3/ACTR as a coactivator for MEF2C. During monocyte inflammatory stimulation, acts together with EP300/P300 as a coactivator for NF-kappa-B. Acts as coactivator for PPARG, promotes adipocyte differentiation and the accumulation of brown fat tissue. Plays a role in the regulation of pre-mRNA alternative splicing by methylation of splicing factors. Also seems to be involved in p53/TP53 transcriptional activation. Methylates EP300/P300, both at 'Arg-2142', which may loosen its interaction with NCOA2/GRIP1, and at 'Arg-580' and 'Arg-604' in the KIX domain, which impairs its interaction with CREB and inhibits CREB-dependent transcriptional activation. Also methylates arginine residues in RNA-binding proteins PABPC1, ELAVL1 and ELAV4, which may affect their mRNA-stabilizing properties and the half-life of their target mRNAs.[1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] [16] [17]
Publication Abstract from PubMed
The dynamic interplay of post-translational modifications (PTMs) in chromatin provides a communication system for the regulation of gene expression. An increasing number of studies have highlighted the role that such crosstalk between PTMs plays in chromatin recognition. In this study, (bio)chemical and structural approaches were applied to specifically probe the impact of acetylation of Lys(18) in the histone H3 tail peptide on peptide recognition by the protein methyltransferase coactivator-associated arginine methyltransferase 1 (CARM1). Peptidomimetics that recapitulate the transition state of protein arginine N-methyltransferases, were designed based on the H3 peptide wherein the target Arg(17) was flanked by either a free or an acetylated lysine. Structural studies with these peptidomimetics and the catalytic domain of CARM1 provide new insights into the binding of the H3 peptide within the enzyme active site. While the co-crystal structures reveal that lysine acetylation results in minor conformational differences for both CARM1 and the H3 peptide, acetylation of Lys(18) does lead to additional interactions (Van der Waals and hydrogen bonding) and likely reduces the cost of desolvation upon binding, resulting in increased affinity. Informed by these findings a series of smaller peptidomimetics were also prepared and found to maintain potent and selective CARM1 inhibition. These findings provide new insights both into the mechanism of crosstalk between arginine methylation and lysine acetylation as well as towards the development of peptidomimetic CARM1 inhibitors.
Structural Studies Provide New Insights into the Role of Lysine Acetylation on Substrate Recognition by CARM1 and Inform the Design of Potent Peptidomimetic Inhibitors.,Zhang Y, Marechal N, van Haren MJ, Troffer-Charlier N, Cura V, Cavarelli J, Martin NI Chembiochem. 2021 Dec 10;22(24):3469-3476. doi: 10.1002/cbic.202100506. Epub 2021 , Oct 14. PMID:34569136[18]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
See Also
References
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- ↑ Chen SL, Loffler KA, Chen D, Stallcup MR, Muscat GE. The coactivator-associated arginine methyltransferase is necessary for muscle differentiation: CARM1 coactivates myocyte enhancer factor-2. J Biol Chem. 2002 Feb 8;277(6):4324-33. Epub 2001 Nov 16. PMID:11713257 doi:http://dx.doi.org/10.1074/jbc.M109835200
- ↑ Koh SS, Li H, Lee YH, Widelitz RB, Chuong CM, Stallcup MR. Synergistic coactivator function by coactivator-associated arginine methyltransferase (CARM) 1 and beta-catenin with two different classes of DNA-binding transcriptional activators. J Biol Chem. 2002 Jul 19;277(29):26031-5. Epub 2002 Apr 30. PMID:11983685 doi:http://dx.doi.org/10.1074/jbc.M110865200
- ↑ Lee YH, Koh SS, Zhang X, Cheng X, Stallcup MR. Synergy among nuclear receptor coactivators: selective requirement for protein methyltransferase and acetyltransferase activities. Mol Cell Biol. 2002 Jun;22(11):3621-32. PMID:11997499
- ↑ Yadav N, Lee J, Kim J, Shen J, Hu MC, Aldaz CM, Bedford MT. Specific protein methylation defects and gene expression perturbations in coactivator-associated arginine methyltransferase 1-deficient mice. Proc Natl Acad Sci U S A. 2003 May 27;100(11):6464-8. Epub 2003 May 19. PMID:12756295 doi:http://dx.doi.org/10.1073/pnas.1232272100
- ↑ Lee YH, Campbell HD, Stallcup MR. Developmentally essential protein flightless I is a nuclear receptor coactivator with actin binding activity. Mol Cell Biol. 2004 Mar;24(5):2103-17. PMID:14966289
- ↑ An W, Kim J, Roeder RG. Ordered cooperative functions of PRMT1, p300, and CARM1 in transcriptional activation by p53. Cell. 2004 Jun 11;117(6):735-48. PMID:15186775 doi:10.1016/j.cell.2004.05.009
- ↑ Covic M, Hassa PO, Saccani S, Buerki C, Meier NI, Lombardi C, Imhof R, Bedford MT, Natoli G, Hottiger MO. Arginine methyltransferase CARM1 is a promoter-specific regulator of NF-kappaB-dependent gene expression. EMBO J. 2005 Jan 12;24(1):85-96. Epub 2004 Dec 16. PMID:15616592 doi:http://dx.doi.org/10.1038/sj.emboj.7600500
- ↑ Teyssier C, Ou CY, Khetchoumian K, Losson R, Stallcup MR. Transcriptional intermediary factor 1alpha mediates physical interaction and functional synergy between the coactivator-associated arginine methyltransferase 1 and glucocorticoid receptor-interacting protein 1 nuclear receptor coactivators. Mol Endocrinol. 2006 Jun;20(6):1276-86. Epub 2005 Dec 1. PMID:16322096 doi:10.1210/me.2005-0393
- ↑ Cheng D, Cote J, Shaaban S, Bedford MT. The arginine methyltransferase CARM1 regulates the coupling of transcription and mRNA processing. Mol Cell. 2007 Jan 12;25(1):71-83. PMID:17218272 doi:http://dx.doi.org/10.1016/j.molcel.2006.11.019
- ↑ Yue WW, Hassler M, Roe SM, Thompson-Vale V, Pearl LH. Insights into histone code syntax from structural and biochemical studies of CARM1 methyltransferase. EMBO J. 2007 Oct 17;26(20):4402-12. Epub 2007 Sep 20. PMID:17882261
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- ↑ Feng Q, He B, Jung SY, Song Y, Qin J, Tsai SY, Tsai MJ, O'Malley BW. Biochemical control of CARM1 enzymatic activity by phosphorylation. J Biol Chem. 2009 Dec 25;284(52):36167-74. doi: 10.1074/jbc.M109.065524. Epub, 2009 Oct 20. PMID:19843527 doi:http://dx.doi.org/10.1074/jbc.M109.065524
- ↑ Kim D, Lee J, Cheng D, Li J, Carter C, Richie E, Bedford MT. Enzymatic activity is required for the in vivo functions of CARM1. J Biol Chem. 2010 Jan 8;285(2):1147-52. Epub 2009 Nov 5. PMID:19897492 doi:http://dx.doi.org/M109.035865
- ↑ Kuhn P, Chumanov R, Wang Y, Ge Y, Burgess RR, Xu W. Automethylation of CARM1 allows coupling of transcription and mRNA splicing. Nucleic Acids Res. 2011 Apr;39(7):2717-26. doi: 10.1093/nar/gkq1246. Epub 2010, Dec 7. PMID:21138967 doi:http://dx.doi.org/10.1093/nar/gkq1246
- ↑ Zhang Y, Marechal N, van Haren MJ, Troffer-Charlier N, Cura V, Cavarelli J, Martin NI. Structural Studies Provide New Insights into the Role of Lysine Acetylation on Substrate Recognition by CARM1 and Inform the Design of Potent Peptidomimetic Inhibitors. Chembiochem. 2021 Dec 10;22(24):3469-3476. PMID:34569136 doi:10.1002/cbic.202100506
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