3M4D

Crystal structure of the M113N mutant of alpha-hemolysin


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.90 Å
  • R-Value Free: 0.265 
  • R-Value Work: 0.240 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Molecular bases of cyclodextrin adapter interactions with engineered protein nanopores.

Banerjee, A.Mikhailova, E.Cheley, S.Gu, L.Q.Montoya, M.Nagaoka, Y.Gouaux, E.Bayley, H.

(2010) Proc Natl Acad Sci U S A 107: 8165-8170

  • DOI: 10.1073/pnas.0914229107
  • Primary Citation of Related Structures:  
    3M2L, 3M3R, 3M4D, 3M4E

  • PubMed Abstract: 
  • Engineered protein pores have several potential applications in biotechnology: as sensor elements in stochastic detection and ultrarapid DNA sequencing, as nanoreactors to observe single-molecule chemistry, and in the construction of nano- and micro-devices ...

    Engineered protein pores have several potential applications in biotechnology: as sensor elements in stochastic detection and ultrarapid DNA sequencing, as nanoreactors to observe single-molecule chemistry, and in the construction of nano- and micro-devices. One important class of pores contains molecular adapters, which provide internal binding sites for small molecules. Mutants of the alpha-hemolysin (alphaHL) pore that bind the adapter beta-cyclodextrin (betaCD) approximately 10(4) times more tightly than the wild type have been obtained. We now use single-channel electrical recording, protein engineering including unnatural amino acid mutagenesis, and high-resolution x-ray crystallography to provide definitive structural information on these engineered protein nanopores in unparalleled detail.


    Organizational Affiliation

    Department of Chemistry, University of Oxford, Oxford, OX1 3TA, United Kingdom.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Alpha-hemolysinA, B, C, D, E, F, G293Staphylococcus aureusMutation(s): 1 
Gene Names: hlahly
Membrane Entity: Yes 
UniProt
Find proteins for P09616 (Staphylococcus aureus)
Explore P09616 
Go to UniProtKB:  P09616
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.90 Å
  • R-Value Free: 0.265 
  • R-Value Work: 0.240 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 151.15α = 90
b = 134.59β = 90.78
c = 132.9γ = 90
Software Package:
Software NamePurpose
HKL-2000data collection
CNSrefinement
DENZOdata reduction
SCALEPACKdata scaling
CNSphasing

Structure Validation

View Full Validation Report




Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2010-05-05
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance