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==The 2.2 A crystal structure of the catalytic domain of coactivator-associated arginine methyl transferase I(CARM1,142-478), in complex with S-adenosyl homocysteine==
The line below this paragraph, containing "STRUCTURE_3b3f", creates the "Structure Box" on the page.
<StructureSection load='3b3f' size='340' side='right'caption='[[3b3f]], [[Resolution|resolution]] 2.20&Aring;' scene=''>
You may change the PDB parameter (which sets the PDB file loaded into the applet)
== Structural highlights ==
or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
<table><tr><td colspan='2'>[[3b3f]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Rattus_norvegicus Rattus norvegicus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3B3F OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3B3F FirstGlance]. <br>
or leave the SCENE parameter empty for the default display.
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.2&#8491;</td></tr>
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=SAH:S-ADENOSYL-L-HOMOCYSTEINE'>SAH</scene></td></tr>
{{STRUCTURE_3b3f| PDB=3b3f |  SCENE= }}
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=3b3f FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3b3f OCA], [https://pdbe.org/3b3f PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3b3f RCSB], [https://www.ebi.ac.uk/pdbsum/3b3f PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3b3f ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/CARM1_RAT CARM1_RAT] 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.<ref>PMID:15944154</ref>  Isoform 3 specifically affects pre-mRNA splicing. This activity is independent from methyltransferase activity.<ref>PMID:15944154</ref>
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
Check<jmol>
  <jmolCheckbox>
    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/b3/3b3f_consurf.spt"</scriptWhenChecked>
    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
    <text>to colour the structure by Evolutionary Conservation</text>
  </jmolCheckbox>
</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=3b3f ConSurf].
<div style="clear:both"></div>


'''The 2.2 A crystal structure of the catalytic domain of coactivator-associated arginine methyl transferase I(CARM1,142-478), in complex with S-adenosyl homocysteine'''
==See Also==
 
*[[Histone methyltransferase 3D structures|Histone methyltransferase 3D structures]]
 
== References ==
==Overview==
<references/>
Coactivator-associated arginine methyltransferase 1 (CARM1), a protein arginine methyltransferase recruited by several transcription factors, methylates a large variety of proteins and plays a critical role in gene expression. We report, in this paper, four crystal structures of isolated modules of CARM1. The 1.7 A crystal structure of the N-terminal domain of CARM1 reveals an unexpected PH domain, a scaffold frequently found to regulate protein-protein interactions in a large variety of biological processes. Three crystal structures of the CARM1 catalytic module, two free and one cofactor-bound forms (refined at 2.55 A, 2.4 A and 2.2 A, respectively) reveal large structural modifications including disorder to order transition, helix to strand transition and active site modifications. The N-terminal and the C-terminal end of CARM1 catalytic module contain molecular switches that may inspire how CARM1 regulates its biological activities by protein-protein interactions.
__TOC__
 
</StructureSection>
==About this Structure==
[[Category: Large Structures]]
3B3F is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Rattus_norvegicus Rattus norvegicus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3B3F OCA].
 
==Reference==
Functional insights from structures of coactivator-associated arginine methyltransferase 1 domains., Troffer-Charlier N, Cura V, Hassenboehler P, Moras D, Cavarelli J, EMBO J. 2007 Oct 17;26(20):4391-401. Epub 2007 Sep 20. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/17882262 17882262]
[[Category: Rattus norvegicus]]
[[Category: Rattus norvegicus]]
[[Category: Single protein]]
[[Category: Cavarelli J]]
[[Category: Cavarelli, J.]]
[[Category: Cura V]]
[[Category: Cura, V.]]
[[Category: Hassenboehler P]]
[[Category: Hassenboehler, P.]]
[[Category: Moras D]]
[[Category: Moras, D.]]
[[Category: Troffer-Charlier N]]
[[Category: Troffer-Charlier, N.]]
[[Category: Alternative splicing]]
[[Category: Catalytic domain]]
[[Category: Chromatin regulator]]
[[Category: Cytoplasm]]
[[Category: Mrna processing]]
[[Category: Mrna splicing]]
[[Category: Nucleus]]
[[Category: Protein arginine methyltransferase]]
[[Category: S-adenosyl-l-methionine]]
[[Category: Transcription]]
[[Category: Transcription regulation]]
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun May  4 20:21:29 2008''

Latest revision as of 12:27, 21 February 2024

The 2.2 A crystal structure of the catalytic domain of coactivator-associated arginine methyl transferase I(CARM1,142-478), in complex with S-adenosyl homocysteineThe 2.2 A crystal structure of the catalytic domain of coactivator-associated arginine methyl transferase I(CARM1,142-478), in complex with S-adenosyl homocysteine

Structural highlights

3b3f is a 4 chain structure with sequence from Rattus norvegicus. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 2.2Å
Ligands:
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

CARM1_RAT 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] Isoform 3 specifically affects pre-mRNA splicing. This activity is independent from methyltransferase activity.[2]

Evolutionary Conservation

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

See Also

References

  1. ↑ Ohkura N, Takahashi M, Yaguchi H, Nagamura Y, Tsukada T. Coactivator-associated arginine methyltransferase 1, CARM1, affects pre-mRNA splicing in an isoform-specific manner. J Biol Chem. 2005 Aug 12;280(32):28927-35. Epub 2005 Jun 8. PMID:15944154 doi:http://dx.doi.org/M502173200
  2. ↑ Ohkura N, Takahashi M, Yaguchi H, Nagamura Y, Tsukada T. Coactivator-associated arginine methyltransferase 1, CARM1, affects pre-mRNA splicing in an isoform-specific manner. J Biol Chem. 2005 Aug 12;280(32):28927-35. Epub 2005 Jun 8. PMID:15944154 doi:http://dx.doi.org/M502173200

3b3f, resolution 2.20Å

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