2G7N | pdb_00002g7n

Structure of the Light Chain of Botulinum Neurotoxin Serotype A Bound to small Molecule Inhibitors

• PDB DOI: https://doi.org/10.2210/pdb2G7N/pdb

• Classification: HYDROLASE
• Organism(s): Clostridium botulinum
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2006-02-28 Released: 2007-03-13 
• Deposition Author(s): Fu, Z., Baldwin, M.R., Boldt, G.E., Janda, K.D., Barbieri, J.T., Kim, J.-J.P.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.90 Å
• R-Value Free: 
  0.248 (Depositor), 0.250 (DCC) 
• R-Value Work: 
  0.223 (Depositor), 0.220 (DCC) 
• R-Value Observed: 
  0.223 (Depositor) 

Starting Model: experimental

Literature

Structure of the Light Chain of Botulinum Neurotoxin Serotype A bound to Small Molecule Inhibitors

Fu, Z., Baldwin, M.R., Boldt, G.E., Crawford, A., Janda, K.D., Barbieri, J.T., Kim, J.-J.P.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Macromolecule Content 

• Total Structure Weight: 49.31 kDa 
• Atom Count: 3,544 
• Modeled Residue Count: 415 
• Deposited Residue Count: 425 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Botulinum neurotoxin type A	A	425	Clostridium botulinum	Mutation(s): 0  Gene Names: botA, atx, bna EC: 3.4.24.69
UniProt
Find proteins for Q45894 (Clostridium botulinum (strain Kyoto / Type A2)) Explore Q45894  Go to UniProtKB:  Q45894

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
AG	C [auth A], D [auth A], E [auth A], F [auth A]	SILVER ION Ag FOIXSVOLVBLSDH-UHFFFAOYSA-N
ZN	B [auth A]	ZINC ION Zn PTFCDOFLOPIGGS-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.90 Å
• R-Value Free:  0.248 (Depositor), 0.250 (DCC) 
• R-Value Work:  0.223 (Depositor), 0.220 (DCC) 
• R-Value Observed: 0.223 (Depositor) 

Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 50.91	α = 90
b = 66.71	β = 98.48
c = 64.39	γ = 90

Software Package:

Software Name	Purpose
CNS	refinement
HKL-2000	data reduction
SCALEPACK	data scaling
MERLOT	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2007-03-13 
Deposition Author(s): Fu, Z., Baldwin, M.R., Boldt, G.E., Janda, K.D., Barbieri, J.T., Kim, J.-J.P.

Revision History  

• Version 1.0: 2007-03-13
  Type: Initial release
  
• Version 1.1: 2008-05-01
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2023-08-30
  Changes: Data collection, Database references, Derived calculations, Refinement description