|coactivator-associated arginine methyltransferase 1|
Crystal Structure of Coactivator Associated Arginine Methyltransferase 1
|Locus||Chr. 19 p13.2|
|coactivator associated arginine methyltransferase 1-like|
|Locus||Chr. 9 p24.2|
CARM1 (coactivator-associated arginine methyltransferase 1), also known as PRMT4 (protein arginine N-methyltransferase 4), is an enzyme (EC 18.104.22.168) encoded by the CARM1 gene found in human beings, as well as many other mammals. It has a polypeptide (L) chain type that is 348 residues long, and is made up of alpha helices and beta sheets. Its main function includes catalyzing the transfer of a methyl group from S-adenosyl-L-methionine to the side chain nitrogens of arginine residues within proteins to form methylated arginine derivatives and S-adenosyl-L-homocysteine. CARM1 is a secondary coactivator through its association with p160 family (SRC-1, GRIP1, AIB) of coactivators. It is responsible for moving cells toward the inner cell mass in developing blastocysts.
CARM1 exerts both oncogenic and tumor-suppressive functions. In breast cancer, CARM1 methylates chromatin remodeling factor BAF155 to enhance tumor progression and metastasis. In pancreatic cancer, CARM1 methylates and inhibits MDH1 by disrupting its dimerization, which represses mitochondria respiration and inhibits glutamine utilization. CARM1-mediated MDH1 methylation reduces cellular NADPH level and sensitizes cells to oxidative stress, thereby suppressing cell proliferation and colony formation.
- coactivator-associated arginine methyltransferase 1 at the US National Library of Medicine Medical Subject Headings (MeSH)
- NURSA C30
- "RCSB Protein Data Bank - Structure Summary for 2Y1W - CRYSTAL STRUCTURE OF COACTIVATOR ASSOCIATED ARGININE METHYLTRANSFERASE 1 (CARM1) IN COMPLEX WITH SINEFUNGIN AND INDOLE INHIBITOR".
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- "RCSB Protein Data Bank - Sequence / Structure Details for 2Y1W - CRYSTAL STRUCTURE OF COACTIVATOR ASSOCIATED ARGININE METHYLTRANSFERASE 1 (CARM1) IN COMPLEX WITH SINEFUNGIN AND INDOLE INHIBITOR".
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- Hong H, Kao C, Jeng MH, Eble JN, Koch MO, Gardner TA, Zhang S, Li L, Pan CX, Hu Z, MacLennan GT, Cheng L (2004). "Aberrant expression of CARM1, a transcriptional coactivator of androgen receptor, in the development of prostate carcinoma and androgen-independent status". Cancer. 101 (1): 83–9. doi:10.1002/cncr.20327. PMID 15221992.
- Majumder S, Liu Y, Ford OH, Mohler JL, Whang YE (2006). "Involvement of arginine methyltransferase CARM1 in androgen receptor function and prostate cancer cell viability". Prostate. 66 (12): 1292–301. doi:10.1002/pros.20438. PMID 16705743.
- Wang L, Zhao Z, Meyer MB, Saha S, Yu M, Guo A, Wisinski KB, Huang W, Cai W, Pike JW, Yuan M, Ahlquist P, Xu W (Jul 2016). "CARM1 Methylates Chromatin Remodeling Factor BAF155 to Enhance Tumor Progression and Metastasis". Cancer Cell. 30 (1): 179–180. doi:10.1016/j.ccell.2016.06.013. PMID 27479032.
- Wang YP, Zhou W, Wang J, Huang X, Zuo Y, Wang TS, Gao X, Xu YY, Zou SW, Liu YB, Cheng JK, Lei QY (Nov 2016). "Arginine Methylation of MDH1 by CARM1 Inhibits Glutamine Metabolism and Suppresses Pancreatic Cancer". Molecular Cell. 64 (4): 673–87. doi:10.1016/j.molcel.2016.09.028. PMID 27840030.
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