1JXW

CRAMBIN MIXED SEQUENCE FORM AT 180 K. PROTEIN/WATER SUBSTATES


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 0.89 Å
  • R-Value Work: 0.137 
  • R-Value Observed: 0.137 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

On the nature of a glassy state of matter in a hydrated protein: Relation to protein function.

Teeter, M.M.Yamano, A.Stec, B.Mohanty, U.

(2001) Proc Natl Acad Sci U S A 98: 11242-11247

  • DOI: 10.1073/pnas.201404398
  • Primary Citation of Related Structures:  
    1JXU, 1JXT, 1JXY, 1JXX, 1JXW

  • PubMed Abstract: 
  • Diverse biochemical and biophysical experiments indicate that all proteins, regardless of size or origin, undergo a dynamic transition near 200 K. The cause of this shift in dynamic behavior, termed a "glass transition," and its relation to protein f ...

    Diverse biochemical and biophysical experiments indicate that all proteins, regardless of size or origin, undergo a dynamic transition near 200 K. The cause of this shift in dynamic behavior, termed a "glass transition," and its relation to protein function are important open questions. One explanation postulated for the transition is solidification of correlated motions in proteins below the transition. We verified this conjecture by showing that crambin's radius of gyration (Rg) remains constant below approximately 180 K. We show that both atom position and dynamics of protein and solvent are physically coupled, leading to a novel cooperative state. This glassy state is identified by negative slopes of the Debye-Waller (B) factor vs. temperature. It is composed of multisubstate side chains and solvent. Based on generalization of Adam-Gibbs' notion of a cooperatively rearranging region and decrease of the total entropy with temperature, we calculate the slope of the Debye-Waller factor. The results are in accord with experiment.


    Organizational Affiliation

    Eugene F. Merkert Chemistry Center, Boston College, Chestnut Hill, MA 02467, USA. teeter@bc.edu



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
CrambinA46Crambe hispanica subsp. abyssinicaMutation(s): 2 
Gene Names: THI2
Find proteins for P01542 (Crambe hispanica subsp. abyssinica)
Explore P01542 
Go to UniProtKB:  P01542
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
EOH
Query on EOH

Download CCD File 
A
ETHANOL
C2 H6 O
LFQSCWFLJHTTHZ-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 0.89 Å
  • R-Value Work: 0.137 
  • R-Value Observed: 0.137 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 40.86α = 90
b = 18.52β = 90.68
c = 22.39γ = 90
Software Package:
Software NamePurpose
LEHMANN-LARSENdata collection
TEXSANdata reduction
PROLSQrefinement
LEHMANN-LARSENdata reduction
TEXSANdata scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2001-10-31
    Type: Initial release
  • Version 1.1: 2008-04-27
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Atomic model, Version format compliance
  • Version 1.3: 2014-02-05
    Changes: Atomic model, Other