The S53A Proenzyme Structure of Methanococcus jannaschii.

Experimental Data Snapshot

  • Resolution: 1.90 Å
  • R-Value Free: 0.221 
  • R-Value Work: 0.186 
  • R-Value Observed: 0.186 

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This is version 1.4 of the entry. See complete history


Pyruvoyl-Dependent Arginine Decarboxylase from Methanococcus jannaschii: Crystal Structures of the Self-Cleaved and S53A Proenzyme Forms

Tolbert, W.D.Graham, D.E.White, R.H.Ealick, S.E.

(2003) Structure 11: 285-294

  • DOI: https://doi.org/10.1016/s0969-2126(03)00026-1
  • Primary Citation of Related Structures:  
    1MT1, 1N13, 1N2M

  • PubMed Abstract: 

    The three-dimensional structure of pyruvoyl-dependent arginine decarboxylase from Methanococcus jannaschii was determined at 1.4 A resolution. The pyruvoyl group of arginine decarboxylase is generated by an autocatalytic internal serinolysis reaction at Ser53 in the proenzyme resulting in two polypeptide chains. The structure of the nonprocessing S53A mutant was also determined. The active site of the processed enzyme unexpectedly contained the reaction product agmatine. The crystal structure confirms that arginine decarboxylase is a homotrimer. The protomer fold is a four-layer alphabetabetaalpha sandwich with topology similar to pyruvoyl-dependent histidine decarboxylase. Highly conserved residues Asn47, Ser52, Ser53, Ile54, and Glu109 are proposed to play roles in the self-processing reaction. Agmatine binding residues include the C terminus of the beta chain (Ser52) from one protomer and the Asp35 side chain and the Gly44 and Val46 carbonyl oxygen atoms from an adjacent protomer. Glu109 is proposed to play a catalytic role in the decarboxylation reaction.

  • Organizational Affiliation

    Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY 14853, USA.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Pyruvoyl-dependent arginine decarboxylase
A, B, C, D, E
A, B, C, D, E, F
165Methanocaldococcus jannaschiiMutation(s): 0 
Gene Names: MJ0316
Find proteins for Q57764 (Methanocaldococcus jannaschii (strain ATCC 43067 / DSM 2661 / JAL-1 / JCM 10045 / NBRC 100440))
Explore Q57764 
Go to UniProtKB:  Q57764
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ57764
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 1.90 Å
  • R-Value Free: 0.221 
  • R-Value Work: 0.186 
  • R-Value Observed: 0.186 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 56.26α = 90
b = 91.31β = 94.72
c = 86.2γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2003-03-25
    Type: Initial release
  • Version 1.1: 2008-04-28
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2017-11-15
    Changes: Database references
  • Version 1.4: 2024-02-14
    Changes: Data collection, Database references, Derived calculations, Refinement description