Biological Assembly 1  

 3D View: Structure | Electron Density

Global Symmetry: Cyclic - C2  (3D View)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 77.55 kDa 
• Atom Count: 5233 
• Residue Count: 648 
• Unique protein chains: 1

3B3G

The 2.4 A crystal structure of the apo catalytic domain of coactivator-associated arginine methyl transferase I(CARM1,140-480).

• DOI: 10.2210/pdb3B3G/pdb

• Classification: TRANSFERASE
• Organism(s): Rattus norvegicus
• Expression System: unidentified baculovirus
• Mutation(s): No 


• Deposited: 2007-10-22 Released: 2007-11-06 
• Deposition Author(s): Troffer-Charlier, N., Cura, V., Hassenboehler, P., Moras, D., Cavarelli, J.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.40 Å
• R-Value Free: 0.265 
• R-Value Work: 0.205 
• R-Value Observed: 0.208 

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

• PubMed: 17882262 
• DOI: 10.1038/sj.emboj.7601855
• Structures With Same Primary Citation


• 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.

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Related Citations: 

• Expression, purification, crystallization and preliminary crystallographic study of isolated modules of the mouse coactivator-associated arginine methyltransferase 1.
  Troffer-Charlier, N., Cura, V., Hassenboehler, P., Moras, D., Cavarelli, J.
  (2007) Acta Crystallogr Sect F Struct Biol Cryst Commun 63: 330

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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.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
Histone-arginine methyltransferase CARM1	A, B	341	Rattus norvegicus	Mutation(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)
Find proteins for Q4AE70 (Rattus norvegicus) Explore Q4AE70  Go to UniProtKB:  Q4AE70

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.40 Å
• R-Value Free: 0.265 
• R-Value Work: 0.205 
• R-Value Observed: 0.208 
• Space Group: I 2 2 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 73.817	α = 90
b = 98.116	β = 90
c = 207.134	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
HKL-2000	data collection
HKL-2000	data reduction
HKL-2000	data scaling
PHASER	phasing

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2007-10-22 
• Released Date: 2007-11-06 
Deposition Author(s): Troffer-Charlier, N., Cura, V., Hassenboehler, P., Moras, D., Cavarelli, J.

Revision History 

• Version 1.0: 2007-11-06
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Advisory, Version format compliance