5MK6

Crystal structure of the receptor-binding domain of botulinum neurotoxin A1 (crystal form 1)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.45 Å
  • R-Value Free: 0.221 
  • R-Value Work: 0.176 
  • R-Value Observed: 0.178 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

High resolution crystal structures of the receptor-binding domain ofClostridium botulinumneurotoxin serotypes A and FA.

Davies, J.R.Hackett, G.S.Liu, S.M.Acharya, K.R.

(2018) PeerJ 6: e4552-e4552

  • DOI: https://doi.org/10.7717/peerj.4552
  • Primary Citation of Related Structures:  
    5MK6, 5MK7, 5MK8

  • PubMed Abstract: 

    The binding specificity of botulinum neurotoxins (BoNTs) is primarily a consequence of their ability to bind to multiple receptors at the same time. BoNTs consist of three distinct domains, a metalloprotease light chain (LC), a translocation domain (H N ) and a receptor-binding domain (H C ). Here we report the crystal structure of H C /FA, complementing an existing structure through the modelling of a previously unresolved loop which is important for receptor-binding. Our H C /FA structure also contains a previously unidentified disulphide bond, which we have also observed in one of two crystal forms of H C /A1. This may have implications for receptor-binding and future recombinant toxin production.


  • Organizational Affiliation

    Department of Biology and Biochemistry, University of Bath, Bath, United Kingdom.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Botulinum neurotoxin type A433Clostridium botulinumMutation(s): 0 
Gene Names: botAatxbna
EC: 3.4.24.69
UniProt
Find proteins for P0DPI1 (Clostridium botulinum (strain Hall / ATCC 3502 / NCTC 13319 / Type A))
Explore P0DPI1 
Go to UniProtKB:  P0DPI1
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP0DPI1
Sequence Annotations
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
NA
Query on NA

Download Ideal Coordinates CCD File 
B [auth A]SODIUM ION
Na
FKNQFGJONOIPTF-UHFFFAOYSA-N
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.45 Å
  • R-Value Free: 0.221 
  • R-Value Work: 0.176 
  • R-Value Observed: 0.178 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 39.77α = 90
b = 107.32β = 90
c = 107.6γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
DIALSdata reduction
Aimlessdata scaling
PHASERphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2018-03-28
    Type: Initial release
  • Version 1.1: 2018-04-04
    Changes: Data collection, Database references
  • Version 1.2: 2024-05-08
    Changes: Data collection, Database references