2ZRQ

Crystal structure of S324A-subtilisin


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.16 Å
  • R-Value Free: 0.197 
  • R-Value Work: 0.144 
  • R-Value Observed: 0.147 

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This is version 1.1 of the entry. See complete history


Literature

Crystal structure of Tk-subtilisin folded without propeptide: requirement of propeptide for acceleration of folding

Tanaka, S.Takeuchi, Y.Matsumura, H.Koga, Y.Takano, K.Kanaya, S.

(2008) FEBS Lett 582: 3875-3878

  • DOI: 10.1016/j.febslet.2008.10.025
  • Primary Citation of Related Structures:  
    2ZRQ

  • PubMed Abstract: 
  • Tk-subtilisin (a subtilisin homologue from Thermococcus kodakaraensis) is matured from Pro-Tk-subtilisin upon autoprocessing and degradation of Tk-propeptide. To analyze the folding mechanism of Tk-subtilisin, the crystal structure of the active site mutant of Tk-subtilisin (S324A-subtilisin*), which was refolded in the presence of Ca2+ and absence of Tk-propeptide, was determined at 2 ...

    Tk-subtilisin (a subtilisin homologue from Thermococcus kodakaraensis) is matured from Pro-Tk-subtilisin upon autoprocessing and degradation of Tk-propeptide. To analyze the folding mechanism of Tk-subtilisin, the crystal structure of the active site mutant of Tk-subtilisin (S324A-subtilisin*), which was refolded in the presence of Ca2+ and absence of Tk-propeptide, was determined at 2.16A resolution. This structure is essentially the same as that of Tk-subtilisin matured from Pro-Tk-subtilisin. S324A-subtilisin* was refolded with a rate constant of 0.17 and 1.8min(-1) at 30 degrees C in the absence and presence of Tk-propeptide, respectively, indicating that Tk-subtilisin does not require Tk-propeptide for folding but requires it for acceleration of folding.


    Organizational Affiliation

    Department of Material and Life Science, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Tk-subtilisinA329Thermococcus kodakarensis KOD1Mutation(s): 1 
Gene Names: TK1675
EC: 3.4.21.62 (PDB Primary Data), 3.4.21 (UniProt)
UniProt
Find proteins for P58502 (Thermococcus kodakarensis (strain ATCC BAA-918 / JCM 12380 / KOD1))
Explore P58502 
Go to UniProtKB:  P58502
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.16 Å
  • R-Value Free: 0.197 
  • R-Value Work: 0.144 
  • R-Value Observed: 0.147 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 46.188α = 90
b = 60.925β = 90
c = 92.277γ = 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: 2009-03-03
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance