2DFE

Crystal structure of Tk-RNase HII(1-200)-C


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Free: 0.287 
  • R-Value Work: 0.227 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Conformational contagion in a protein: Structural properties of a chameleon sequence

Takano, K.Katagiri, Y.Mukaiyama, A.Chon, H.Matsumura, H.Koga, Y.Kanaya, S.

(2007) Proteins 68: 617-625

  • DOI: 10.1002/prot.21451
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Certain sequences, known as chameleon sequences, take both alpha- and beta-conformations in natural proteins. We demonstrate that a wild chameleon sequence fused to the C-terminal alpha-helix or beta-sheet in foreign stable proteins from hyperthermop ...

    Certain sequences, known as chameleon sequences, take both alpha- and beta-conformations in natural proteins. We demonstrate that a wild chameleon sequence fused to the C-terminal alpha-helix or beta-sheet in foreign stable proteins from hyperthermophiles forms the same conformation as the host secondary structure. However, no secondary structural formation is observed when the sequence is attached to the outside of the secondary structure. These results indicate that this sequence inherently possesses an ability to make either alpha- or beta-conformation, depending on the sequentially neighboring secondary structure if little other nonlocal interaction occurs. Thus, chameleon sequences take on a satellite state through contagion by the power of a secondary structure. We propose this "conformational contagion" as a new nonlocal determinant factor in protein structure and misfolding related to protein conformational diseases.


    Organizational Affiliation

    Department of Material and Life Science, Osaka University, Suita, Japan. ktakano@mls.eng.osaka-u.ac.jp




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Ribonuclease HII
A
209Thermococcus kodakarensis (strain ATCC BAA-918 / JCM 12380 / KOD1)Mutation(s): 0 
Gene Names: rnhB
EC: 3.1.26.4
Find proteins for O74035 (Thermococcus kodakarensis (strain ATCC BAA-918 / JCM 12380 / KOD1))
Go to UniProtKB:  O74035
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Free: 0.287 
  • R-Value Work: 0.227 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 61.570α = 90.00
b = 67.990β = 90.00
c = 44.580γ = 90.00
Software Package:
Software NamePurpose
HKL-2000data reduction
CNSrefinement
MOLREPphasing
SCALEPACKdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2007-03-06
    Type: Initial release
  • Version 1.1: 2008-04-30
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Source and taxonomy, Version format compliance