7UG8 | pdb_00007ug8

Crystal structure of a solute receptor from Synechococcus CC9311 in complex with alpha-ketovaleric and calcium

• PDB DOI: https://doi.org/10.2210/pdb7UG8/pdb

• Classification: TRANSPORT PROTEIN
• Organism(s): Synechococcus sp. CC9311
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2022-03-24 Released: 2023-04-19 
• Deposition Author(s): Shah, B.S., Mikolajek, H., Orr, C.M., Mykhaylyk, V., Owens, R.J., Paulsen, I.T.
• Funding Organization(s): Australian Research Council (ARC)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.80 Å
• R-Value Free: 
  0.190 (Depositor), 0.200 (DCC) 
• R-Value Work: 
  0.169 (Depositor), 0.180 (DCC) 

Literature

Crystal structure of a solute receptor from Synechococcus CC9311 in complex with alpha-ketovaleric and calcium

Shah, B.S., Mikolajek, H., Orr, C.M., Mykhaylyk, V., Owens, R., Paulsen, I.T.

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 Evidence: gel filtration

Macromolecule Content 

• Total Structure Weight: 77.36 kDa 
• Atom Count: 5,478 
• Modeled Residue Count: 659 
• Deposited Residue Count: 694 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Ketoacid-binding protein	A, B	347	Synechococcus sp. CC9311	Mutation(s): 0  Gene Names: sync_2776

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
69O (Subject of Investigation/LOI)	C [auth A], G [auth B]	2-oxopentanoic acid C5 H8 O3 KDVFRMMRZOCFLS-UHFFFAOYSA-N
EDO	D [auth A], F [auth B]	1,2-ETHANEDIOL C2 H6 O2 LYCAIKOWRPUZTN-UHFFFAOYSA-N
CA	E [auth A], H [auth B]	CALCIUM ION Ca BHPQYMZQTOCNFJ-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.80 Å
• R-Value Free:  0.190 (Depositor), 0.200 (DCC) 
• R-Value Work:  0.169 (Depositor), 0.180 (DCC) 

Space Group: P 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 54.68	α = 69.649
b = 54.75	β = 77.732
c = 61.15	γ = 67.267

Software Package:

Software Name	Purpose
REFMAC	refinement
XDS	data reduction
Aimless	data scaling
CRANK2	phasing
Coot	model building

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2023-04-19 
Deposition Author(s): Shah, B.S., Mikolajek, H., Orr, C.M., Mykhaylyk, V., Owens, R.J., Paulsen, I.T.

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Funding Organization	Location	Grant Number
Australian Research Council (ARC)	Australia	DP200102944
Australian Research Council (ARC)	Australia	CE200100029

Revision History  

• Version 1.0: 2023-04-19
  Type: Initial release
  
• Version 1.1: 2024-05-22
  Changes: Data collection