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 

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.USA 98: 11242-11247

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

  • 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: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Crambin
A
46Crambe hispanica subsp. abyssinicaGene Names: THI2
Find proteins for P01542 (Crambe hispanica subsp. abyssinica)
Go to UniProtKB:  P01542
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
EOH
Query on EOH

Download SDF File 
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 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 40.860α = 90.00
b = 18.520β = 90.68
c = 22.390γ = 90.00
Software Package:
Software NamePurpose
PROLSQrefinement
LEHMANN-LARSENdata reduction
LEHMANN-LARSENdata collection
TEXSANdata reduction
TEXSANdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

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