8K16

KtrA bound with ATP and thallium

• PDB DOI: https://doi.org/10.2210/pdb8K16/pdb

• Classification: METAL TRANSPORT
• Organism(s): Bacillus subtilis
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2023-07-10 Released: 2024-04-03 
• Deposition Author(s): Chiang, W.T., Chang, Y.K., Hu, N.J., Tsai, M.D.
• Funding Organization(s): Ministry of Science and Technology (MoST, Taiwan)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 3.10 Å
• R-Value Free: 0.262 
• R-Value Work: 0.237 
• R-Value Observed: 0.239 

Literature

KtrA bound with ATP and thallium

Chiang, W.T., Chang, Y.K., Hu, N.J., Tsai, M.D.

To be published.

Biological Assembly 1  

Global Symmetry: Dihedral - D4  (Explore in 3D)
Global Stoichiometry: Homo 8-mer - A8 

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

Biological Assembly Evidence: gel filtration

Macromolecule Content

• Total Structure Weight: 51.05 kDa 
• Atom Count: 3,475 
• Modelled Residue Count: 434 
• Deposited Residue Count: 444 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Ktr system potassium uptake protein A	A, B	222	Bacillus subtilis	Mutation(s): 0  Gene Names: ktrA, yuaA, BSU31090
UniProt
Find proteins for O32080 (Bacillus subtilis (strain 168)) Explore O32080  Go to UniProtKB:  O32080

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
ATP (Subject of Investigation/LOI)	C [auth A], D [auth B]	ADENOSINE-5'-TRIPHOSPHATE C10 H16 N5 O13 P3 ZKHQWZAMYRWXGA-KQYNXXCUSA-N
TL (Subject of Investigation/LOI)	E [auth B]	THALLIUM (I) ION Tl ZLUSCZLCHQSJRU-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 3.10 Å
• R-Value Free: 0.262 
• R-Value Work: 0.237 
• R-Value Observed: 0.239 
• Space Group: I 4

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 122.418	α = 90
b = 122.418	β = 90
c = 83.853	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
Blu-Ice	data collection
HKL-2000	data reduction
HKL-2000	data scaling
PHASER	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2024-04-03 
Deposition Author(s): Chiang, W.T., Chang, Y.K., Hu, N.J., Tsai, M.D.

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Funding Organization	Location	Grant Number
Ministry of Science and Technology (MoST, Taiwan)	Taiwan	--

Revision History  

• Version 1.0: 2024-04-03
  Type: Initial release