6EFR

Crystal Structure of iNicSnFR 1.0

• PDB DOI: https://doi.org/10.2210/pdb6EFR/pdb

• Classification: CHOLINE-BINDING PROTEIN
• Organism(s): Thermoanaerobacter sp. X513, Aequorea victoria
• Expression System: Escherichia coli BL21
• Mutation(s): Yes 


• Deposited: 2018-08-17 Released: 2019-01-23 
• Deposition Author(s): Shivange, A.V., Borden, P.M.
• Funding Organization(s): National Institutes of Health/National Institute on Drug Abuse (NIH/NIDA)

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.40 Å
• R-Value Free: 0.250 
• R-Value Work: 0.188 
• R-Value Observed: 0.191 

Starting Model: experimental

Literature

Nicotinic Drugs in the Endoplasmic Reticulum: Beginning the Inside-out Pathway of Addiction and Therapy

Shivange, A.V., Borden, P.M., Muthusamy, A.K., Nichols, A.L., Bera, K., Bao, H., Bishara, I., Jeon, J., Mulcahy, M.J., Kim, C.H., Dougherty, D.A., Chapman, E.R., Marvin, J.S., Looger, L.L., Lester, H.A.

(2019) J Gen Physiol 

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: gel filtration

Macromolecule Content

• Total Structure Weight: 58.47 kDa 
• Atom Count: 4,042 
• Modelled Residue Count: 504 
• Deposited Residue Count: 520 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
iNicSnFR 1.0, a genetically encoded nicotine biosensor,Green fluorescent protein	A	520	Thermoanaerobacter sp. X513, Aequorea victoria	Mutation(s): 2
UniProt
Find proteins for P42212 (Aequorea victoria) Explore P42212  Go to UniProtKB:  P42212

Small Molecules

Modified Residues  1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
CRO	A	L-PEPTIDE LINKING	C15 H17 N3 O5		THR, TYR, GLY

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.40 Å
• R-Value Free: 0.250 
• R-Value Work: 0.188 
• R-Value Observed: 0.191 
• Space Group: I 2 2 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 80.61	α = 90
b = 95.64	β = 90
c = 151.79	γ = 90

Software Package:

Software Name	Purpose
MOSFLM	data reduction
SCALA	data scaling
PHASER	phasing
PHENIX	refinement
PDB_EXTRACT	data extraction

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2019-01-23 
Deposition Author(s): Shivange, A.V., Borden, P.M.

---

Funding Organization	Location	Grant Number
National Institutes of Health/National Institute on Drug Abuse (NIH/NIDA)	United States	DA037161

Revision History  

• Version 1.0: 2019-01-23
  Type: Initial release
  
• Version 1.1: 2019-12-11
  Changes: Author supporting evidence
• Version 1.2: 2023-10-11
  Changes: Data collection, Database references, Refinement description
• Version 1.3: 2023-11-15
  Changes: Data collection
• Version 1.4: 2024-10-16
  Changes: Structure summary