3B3J

The 2.55 A crystal structure of the apo catalytic domain of coactivator-associated arginine methyl transferase I(CARM1:28-507, residues 28-146 and 479-507 not ordered)

Summary for 3B3J

• Entry DOI: 10.2210/pdb3b3j/pdb
• Related: 2OQB 3B3F 3B3G
• Descriptor: Histone-arginine methyltransferase CARM1, BENZAMIDINE (3 entities in total)
• Functional Keywords: protein arginine methyltransferase 4, apo catalytic domain, chromatin regulator, mrna processing, mrna splicing, nucleus, s-adenosyl-l-methionine, transcription, transcription regulation, transferase
• Biological source: Rattus norvegicus (Norway rat)
• Cellular location: Nucleus: Q4AE70
• Total number of polymer chains: 1
• Total formula weight: 54675.98

Authors

Troffer-Charlier, N.,Cura, V.,Hassenboehler, P.,Moras, D.,Cavarelli, J. (deposition date: 2007-10-22, release date: 2007-11-06, Last modification date: 2024-02-21)

Primary citation

Troffer-Charlier, N.,Cura, V.,Hassenboehler, P.,Moras, D.,Cavarelli, J.
Functional insights from structures of coactivator-associated arginine methyltransferase 1 domains.
Embo J., 26:4391-4401, 2007

PubMed Abstract: 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.

PubMed: 17882262
DOI: 10.1038/sj.emboj.7601855

Experimental method

X-RAY DIFFRACTION (2.55 Å)