5JMC

Receptor binding domain of Botulinum neurotoxin A in complex with rat SV2C


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.64 Å
  • R-Value Free: 0.275 
  • R-Value Work: 0.239 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

N-linked glycosylation of SV2 is required for binding and uptake of botulinum neurotoxin A.

Yao, G.Zhang, S.Mahrhold, S.Lam, K.H.Stern, D.Bagramyan, K.Perry, K.Kalkum, M.Rummel, A.Dong, M.Jin, R.

(2016) Nat.Struct.Mol.Biol. 23: 656-662

  • DOI: 10.1038/nsmb.3245
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Botulinum neurotoxin serotype A1 (BoNT/A1), a licensed drug widely used for medical and cosmetic applications, exerts its action by invading motoneurons. Here we report a 2.0-Å-resolution crystal structure of the BoNT/A1 receptor-binding domain in co ...

    Botulinum neurotoxin serotype A1 (BoNT/A1), a licensed drug widely used for medical and cosmetic applications, exerts its action by invading motoneurons. Here we report a 2.0-Å-resolution crystal structure of the BoNT/A1 receptor-binding domain in complex with its neuronal receptor, glycosylated human SV2C. We found that the neuronal tropism of BoNT/A1 requires recognition of both the peptide moiety and an N-linked glycan on SV2. This N-glycan-which is conserved in all SV2 isoforms across vertebrates-is essential for BoNT/A1 binding to neurons and for its potent neurotoxicity. The glycan-binding interface on SV2 is targeted by a human BoNT/A1-neutralizing antibody currently licensed as an antibotulism drug. Our studies reveal a new paradigm of host-pathogen interactions, in which pathogens exploit conserved host post-translational modifications, thereby achieving highly specific receptor binding while also tolerating genetic changes across multiple isoforms of receptors.


    Organizational Affiliation

    Department of Physiology and Biophysics, University of California, Irvine, Irvine, California, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Botulinum neurotoxin type A
A, C, E, G
433Clostridium botulinum (strain Hall / ATCC 3502 / NCTC 13319 / Type A)Mutation(s): 1 
Gene Names: botA (bna)
Find proteins for P0DPI1 (Clostridium botulinum (strain Hall / ATCC 3502 / NCTC 13319 / Type A))
Go to UniProtKB:  P0DPI1
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Synaptic vesicle glycoprotein 2C
B, D, F, H
124Rattus norvegicusMutation(s): 0 
Gene Names: Sv2c
Find proteins for Q9Z2I6 (Rattus norvegicus)
Go to UniProtKB:  Q9Z2I6
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.64 Å
  • R-Value Free: 0.275 
  • R-Value Work: 0.239 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 88.662α = 90.00
b = 143.989β = 93.62
c = 110.917γ = 90.00
Software Package:
Software NamePurpose
XDSdata reduction
XDSdata scaling
PHENIXrefinement
PHASERphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Institutes of Health/National Institute Of Allergy and Infectious DiseasesUnited StatesAI123920

Revision History 

  • Version 1.0: 2016-06-15
    Type: Initial release
  • Version 1.1: 2016-08-03
    Type: Database references
  • Version 1.2: 2017-09-27
    Type: Author supporting evidence, Derived calculations