2oqb
From Proteopedia
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| , resolution 1.690Å | |||||||
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| Ligands: | |||||||
| Gene: | Carm1, Prmt4 (Rattus norvegicus) | ||||||
| Activity: | Histone-arginine N-methyltransferase, with EC number 2.1.1.125 | ||||||
| Resources: | FirstGlance, OCA, PDBsum, RCSB | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
Crystal structure of the N-terminal domain of coactivator-associated methyltransferase 1 (CARM1)
Overview
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.
About this Structure
2OQB is a Single protein structure of sequence from Rattus norvegicus. Full crystallographic information is available from 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:17882262
Page seeded by OCA on Mon Mar 31 04:21:37 2008
