3B3F | pdb_00003b3f

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

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Free: 
    0.234 (Depositor), 0.231 (DCC) 
  • R-Value Work: 
    0.182 (Depositor), 0.181 (DCC) 
  • R-Value Observed: 
    0.185 (Depositor) 

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This is version 1.2 of the entry. See complete history. 

Literature

Functional insights from structures of coactivator-associated arginine methyltransferase 1 domains.

Troffer-Charlier, N., Cura, V., Hassenboehler, P., Moras, D., Cavarelli, J.

(2007) EMBO J 26: 4391-4401

  • DOI: https://doi.org/10.1038/sj.emboj.7601855
  • Primary Citation Related Structures: 
    2OQB, 3B3F, 3B3G, 3B3J

  • 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.

    • Organizational Affiliation: 
    • Département de Biologie et Génomique Structurales, IGBMC (Institut de Génétique et de Biologie Moléculaire et Cellulaire), UMR 7104 CNRS, U596 INSERM, ULP, Illkirch, France.

Macromolecule Content 

  • Total Structure Weight: 156.63 kDa 
  • Atom Count: 11,469 
  • Modeled Residue Count: 1,348 
  • Deposited Residue Count: 1,364 
  • Unique protein chains: 1

Macromolecules

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|  3D Structure
Entity ID: 1
MoleculeChains  Sequence LengthOrganismDetailsImage
Histone-arginine methyltransferase CARM1
A, B, C, D
341Rattus norvegicusMutation(s): 0 
Gene Names: Carm1, Prmt4
EC: 2.1.1.125 (PDB Primary Data), 2.1.1 (PDB Primary Data), 2.1.1.319 (UniProt)
UniProt
Find proteins for Q4AE70 (Rattus norvegicus)
Explore Q4AE70 
Go to UniProtKB:  Q4AE70
Entity Groups
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ4AE70
Sequence Annotations
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Reference Sequence

Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Free:  0.234 (Depositor), 0.231 (DCC) 
  • R-Value Work:  0.182 (Depositor), 0.181 (DCC) 
  • R-Value Observed: 0.185 (Depositor) 
Space Group: P 21 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 74.819α = 90
b = 98.689β = 90
c = 206.926γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
HKL-2000data collection
DENZOdata reduction
SCALEPACKdata scaling

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2007-11-06
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Advisory, Refinement description, Version format compliance
  • Version 1.2: 2024-02-21
    Changes: Data collection, Database references, Derived calculations