3JXO | pdb_00003jxo

Crystal Structure of an Octomeric Two-Subunit TrkA K+ Channel Ring Gating Assembly, TM1088A:TM1088B, from Thermotoga maritima

• PDB DOI: https://doi.org/10.2210/pdb3JXO/pdb

• Classification: TRANSPORT PROTEIN
• Organism(s): Thermotoga sp. RQ2
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2009-09-20 Released: 2009-10-06 
• Deposition Author(s): Deller, M.C., Johnson, H.A., Miller, M., Spraggon, G., Wilson, I.A., Lesley, S.A., Joint Center for Structural Genomics (JCSG)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.55 Å
• R-Value Free: 
  0.187 (Depositor), 0.240 (DCC) 
• R-Value Work: 
  0.158 (Depositor), 0.210 (DCC) 
• R-Value Observed: 
  0.159 (Depositor) 

Starting Model: experimental

Literature

Crystal Structure of an Octomeric Two-Subunit TrkA K+ Channel Ring Gating Assembly, TM1088A:TM1088B, from Thermotoga maritima

Deller, M.C., Johnson, H.A., Miller, M., Spraggon, G., Lesley, S.A.

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

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

Biological Assembly 2  

Global Symmetry: Dihedral - D2  (Explore in 3D)
Global Stoichiometry: Homo 4-mer - A4 

Biological assembly 2 generated by PISA (software)

Macromolecule Content 

• Total Structure Weight: 18.72 kDa 
• Atom Count: 1,350 
• Modeled Residue Count: 169 
• Deposited Residue Count: 172 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
TrkA-N domain protein	A, B	86	Thermotoga sp. RQ2	Mutation(s): 0  Gene Names: TRQ2_1728

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.55 Å
• R-Value Free:  0.187 (Depositor), 0.240 (DCC) 
• R-Value Work:  0.158 (Depositor), 0.210 (DCC) 
• R-Value Observed: 0.159 (Depositor) 

Space Group: C 2 2 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 62.114	α = 90
b = 64.398	β = 90
c = 97	γ = 90

Software Package:

Software Name	Purpose
HKL-2000	data collection
PHASER	phasing
REFMAC	refinement
HKL-2000	data reduction
HKL-2000	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2009-10-06 
Deposition Author(s): Deller, M.C., Johnson, H.A., Miller, M., Spraggon, G., Wilson, I.A., Lesley, S.A., Joint Center for Structural Genomics (JCSG)

Revision History  

• Version 1.0: 2009-10-06
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Source and taxonomy, Version format compliance
• Version 1.2: 2023-09-06
  Changes: Data collection, Database references, Refinement description