2G4T

anomalous substructure of porcine pancreatic elastase (Na)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.15 Å
  • R-Value Free: 0.239 
  • R-Value Work: 0.156 
  • R-Value Observed: 0.157 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

On the routine use of soft X-rays in macromolecular crystallography. Part IV. Efficient determination of anomalous substructures in biomacromolecules using longer X-ray wavelengths.

Mueller-Dieckmann, C.Panjikar, S.Schmidt, A.Mueller, S.Kuper, J.Geerlof, A.Wilmanns, M.Singh, R.K.Tucker, P.A.Weiss, M.S.

(2007) Acta Crystallogr D Biol Crystallogr 63: 366-380

  • DOI: 10.1107/S0907444906055624
  • Primary Citation of Related Structures:  
    2G4V, 2G4U, 2G4T, 2G55, 2G4S, 2G4R, 2G4Q, 2G52, 2G4P, 2G51

  • PubMed Abstract: 
  • 23 different crystal forms of 19 different biological macromolecules were examined with respect to their anomalously scattering substructures using diffraction data collected at a wavelength of 2.0 A (6.2 keV). In more than 90% of the cases the subst ...

    23 different crystal forms of 19 different biological macromolecules were examined with respect to their anomalously scattering substructures using diffraction data collected at a wavelength of 2.0 A (6.2 keV). In more than 90% of the cases the substructure was found to contain more than just the protein S atoms. The data presented suggest that chloride, sulfate, phosphate or metal ions from the buffer or even from the purification protocol are frequently bound to the protein molecule and that these ions are often overlooked, especially if they are not bound at full occupancy. Thus, in order to fully describe the macromolecule under study, it seems desirable that any structure determination be complemented with a long-wavelength data set.


    Organizational Affiliation

    EMBL Hamburg Outstation, c/o DESY, Notkestrasse 85, D-22603 Hamburg, Germany.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Elastase-1A240Sus scrofaMutation(s): 0 
Gene Names: CELA1ELA1
EC: 3.4.21.36
Find proteins for P00772 (Sus scrofa)
Explore P00772 
Go to UniProtKB:  P00772
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

Download CCD File 
A
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
NA
Query on NA

Download CCD File 
A
SODIUM ION
Na
FKNQFGJONOIPTF-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.15 Å
  • R-Value Free: 0.239 
  • R-Value Work: 0.156 
  • R-Value Observed: 0.157 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 49.92α = 90
b = 57.66β = 90
c = 74.38γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
DENZOdata reduction
CCP4data scaling
FFTphasing

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2007-02-20
    Type: Initial release
  • Version 1.1: 2008-05-01
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Advisory, Version format compliance