6M4X | pdb_00006m4x

Co-crystal structure of Ac-AChBPP in complex with [N9A]LvIA

• PDB DOI: https://doi.org/10.2210/pdb6M4X/pdb

• Classification: METAL BINDING PROTEIN/TOXIN
• Organism(s): Aplysia californica, Conus lividus
• Expression System: Baculovirus expression vector pCTdual, Synthesium tursionis
• Mutation(s): Yes 


• Deposited: 2020-03-09 Released: 2021-03-10 
• Deposition Author(s): Wang, X.Q., Pan, S., Luo, S.L., Zhu, X.P.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 3.00 Å
• R-Value Free: 
  0.316 (Depositor), 0.323 (DCC) 
• R-Value Work: 
  0.263 (Depositor), 0.270 (DCC) 
• R-Value Observed: 
  0.265 (Depositor) 

Starting Model: experimental

Literature

The crystal structure of Ac-AChBP in complex with LvIA analogs reveals the mechanism of its selectivity towards different nAChR subtypes

Zhu, X.P., Pan, S., Wang, X.Q., Luo, S.L.

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C5  (Explore in 3D)
Global Stoichiometry: Hetero 10-mer - A5B5 Pseudo Symmetry: Asymmetric - C1 
Pseudo Stoichiometry: Hetero 10-mer - A5B1C1D1E1F1 

Biological assembly 1 assigned by authors and generated by PISA (software)

Biological Assembly Evidence: gel filtration

Macromolecule Content 

• Total Structure Weight: 125.89 kDa 
• Atom Count: 8,820 
• Modeled Residue Count: 1,120 
• Deposited Residue Count: 1,120 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Soluble acetylcholine receptor	A, C [auth B], E [auth D], G, I	207	Aplysia californica	Mutation(s): 0
UniProt
Find proteins for Q8WSF8 (Aplysia californica) Explore Q8WSF8  Go to UniProtKB:  Q8WSF8

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Alpha-conotoxin LvIA	B [auth F], D [auth C], F [auth E], H, J	17	Conus lividus	Mutation(s): 2
UniProt
Find proteins for L8BU87 (Conus lividus) Explore L8BU87  Go to UniProtKB:  L8BU87

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 3.00 Å
• R-Value Free:  0.316 (Depositor), 0.323 (DCC) 
• R-Value Work:  0.263 (Depositor), 0.270 (DCC) 
• R-Value Observed: 0.265 (Depositor) 

Space Group: P 4₁ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 207.441	α = 90
b = 207.441	β = 90
c = 114.061	γ = 90

Software Package:

Software Name	Purpose
HKL-2000	data scaling
PHENIX	refinement
PDB_EXTRACT	data extraction
HKL-2000	data reduction
PHASER	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2021-03-10 
Deposition Author(s): Wang, X.Q., Pan, S., Luo, S.L., Zhu, X.P.

Revision History  

• Version 1.0: 2021-03-10
  Type: Initial release
  
• Version 1.1: 2023-11-29
  Changes: Advisory, Data collection, Database references, Refinement description
• Version 1.2: 2024-11-06
  Changes: Structure summary