6V1R | pdb_00006v1r

Crystal structure of iAChSnFR Fluorescent Acetylcholine Sensor precursor binding protein

• PDB DOI: https://doi.org/10.2210/pdb6V1R/pdb

• Classification: Neurotransmitter-binding protein
• Organism(s): Thermoanaerobacter sp. X513
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2019-11-21 Released: 2020-11-25 
• Deposition Author(s): Fan, C., Borden, P.M., Looger, L.L., Lester, H.A., Rees, D.C.
• Funding Organization(s): Howard Hughes Medical Institute (HHMI), National Institutes of Health/National Institute on Drug Abuse (NIH/NIDA), Tobacco-Related Disease Research Program (TRDRP)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.64 Å
• R-Value Free: 
  0.221 (Depositor) 
• R-Value Work: 
  0.180 (Depositor) 
• R-Value Observed: 
  0.182 (Depositor) 

Starting Model: experimental

Literature

A genetically encoded fluorescent sensor for in vivo acetylcholine detection

Borden, P.M., Shivange, A.V., Fan, C., Rees, D.C., Lester, H.A., Looger, L.L.

To be published.

Biological Assembly 1  

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

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

Biological Assembly Evidence: homology

Macromolecule Content 

• Total Structure Weight: 33.61 kDa 
• Atom Count: 2,520 
• Modeled Residue Count: 278 
• Deposited Residue Count: 293 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
iAChSnFR Fluorescent Acetylcholine Sensor V9 precursor binding protein	A	293	Thermoanaerobacter sp. X513	Mutation(s): 0

Small Molecules

Ligands 4 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
NHE	C [auth A]	2-[N-CYCLOHEXYLAMINO]ETHANE SULFONIC ACID C8 H17 N O3 S MKWKNSIESPFAQN-UHFFFAOYSA-N
ACH (Subject of Investigation/LOI)	B [auth A]	ACETYLCHOLINE C7 H16 N O2 OIPILFWXSMYKGL-UHFFFAOYSA-N
SPD	D [auth A]	SPERMIDINE C7 H19 N3 ATHGHQPFGPMSJY-UHFFFAOYSA-N
PEG	E [auth A]	DI(HYDROXYETHYL)ETHER C4 H10 O3 MTHSVFCYNBDYFN-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.64 Å
• R-Value Free:  0.221 (Depositor) 
• R-Value Work:  0.180 (Depositor) 
• R-Value Observed: 0.182 (Depositor) 

Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 46.76	α = 90
b = 65.781	β = 90
c = 96.592	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
Blu-Ice	data collection
XDS	data reduction
Aimless	data scaling
PHASER	phasing

Structure Validation

Currently 6V1R does not have a validation slider image.

Entry History & Funding Information

Deposition Data

• Released Date: 2020-11-25 
Deposition Author(s): Fan, C., Borden, P.M., Looger, L.L., Lester, H.A., Rees, D.C.

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Funding Organization	Location	Grant Number
Howard Hughes Medical Institute (HHMI)	United States	--
National Institutes of Health/National Institute on Drug Abuse (NIH/NIDA)	United States	DA037161, DA043829, GM123582
National Institutes of Health/National Institute on Drug Abuse (NIH/NIDA)		--
National Institutes of Health/National Institute on Drug Abuse (NIH/NIDA)		--
Tobacco-Related Disease Research Program (TRDRP)	United States	23XT-0007
Tobacco-Related Disease Research Program (TRDRP)	United States	27IP-0057

Revision History  

• Version 1.0: 2020-11-25
  Type: Initial release
  
• Version 1.1: 2023-10-11
  Changes: Data collection, Database references, Refinement description