2DW5

Crystal structure of human peptidylarginine deiminase 4 in complex with N-alpha-benzoyl-N5-(2-fluoro-1-iminoethyl)-L-ornithine amide


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.30 Å
  • R-Value Free: 0.252 
  • R-Value Work: 0.198 
  • R-Value Observed: 0.200 

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This is version 1.2 of the entry. See complete history


Literature

Inhibitors and Inactivators of Protein Arginine Deiminase 4: Functional and Structural Characterization

Luo, Y.Arita, K.Bhatia, M.Knuckley, B.Lee, Y.H.Stallcup, M.R.Sato, M.Thompson, P.R.

(2006) Biochemistry 45: 11727-11736

  • DOI: 10.1021/bi061180d
  • Primary Citation of Related Structures:  
    2DW5

  • PubMed Abstract: 
  • Protein arginine deiminase 4 (PAD4) is a transcriptional coregulator that catalyzes the calcium-dependent conversion of specific arginine residues in proteins to citrulline. Recently, we reported the synthesis and characterization of F-amidine, a potent and bioavailable irreversible inactivator of PAD4 ...

    Protein arginine deiminase 4 (PAD4) is a transcriptional coregulator that catalyzes the calcium-dependent conversion of specific arginine residues in proteins to citrulline. Recently, we reported the synthesis and characterization of F-amidine, a potent and bioavailable irreversible inactivator of PAD4. Herein, we report our efforts to identify the steric and leaving group requirements for F-amidine-induced PAD4 inactivation, the structure of the PAD4-F-amidine x calcium complex, and in vivo studies with N-alpha-benzoyl-N5-(2-chloro-1-iminoethyl)-L-ornithine amide (Cl-amidine), a PAD4 inactivator with enhanced potency. The PAD4 inactivators described herein will be useful pharmacological probes in characterizing the incompletely defined physiological role(s) of this enzyme. In addition, they represent potential lead compounds for the treatment of rheumatoid arthritis because a growing body of evidence supports a role for PAD4 in the onset and progression of this chronic autoimmune disorder.


    Organizational Affiliation

    Department of Chemistry and Biochemistry, University of South Carolina, 631 Sumter Street, Columbia, South Carolina 29208, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Protein-arginine deiminase type-4A671Homo sapiensMutation(s): 0 
Gene Names: PADI4PADI5PDI5PAD4
EC: 3.5.3.15
UniProt & NIH Common Fund Data Resources
Find proteins for Q9UM07 (Homo sapiens)
Explore Q9UM07 
Go to UniProtKB:  Q9UM07
PHAROS:  Q9UM07
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ9UM07
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.30 Å
  • R-Value Free: 0.252 
  • R-Value Work: 0.198 
  • R-Value Observed: 0.200 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 146.259α = 90
b = 60.516β = 124.19
c = 114.911γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
HKL-2000data collection
HKL-2000data reduction
HKL-2000data scaling
MOLREPphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2006-10-17
    Type: Initial release
  • Version 1.1: 2008-04-30
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Advisory, Version format compliance