3KBQ | pdb_00003kbq

The crystal structure of the protein CinA with unknown function from Thermoplasma acidophilum

• PDB DOI: https://doi.org/10.2210/pdb3KBQ/pdb

• Classification: structural genomics, unknown function
• Organism(s): Thermoplasma acidophilum
• Expression System: Escherichia coli BL21
• Mutation(s): No 


• Deposited: 2009-10-20 Released: 2009-12-15 
• Deposition Author(s): Zhang, R., Li, H., Bearden, J., Joachimiak, A., Midwest Center for Structural Genomics (MCSG)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Free: 
  0.241 (Depositor), 0.240 (DCC) 
• R-Value Work: 
  0.203 (Depositor), 0.200 (DCC) 
• R-Value Observed: 
  0.205 (Depositor) 

Literature

The crystal structure of the protein CinA with unknown function from Thermoplasma acidophilum

Zhang, R., Li, H., Bearden, J., Joachimiak, 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)

Macromolecule Content

• Total Structure Weight: 37.2 kDa 
• Atom Count: 2,579 
• Modelled Residue Count: 333 
• Deposited Residue Count: 344 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Protein Ta0487	A, B	172	Thermoplasma acidophilum	Mutation(s): 0  Gene Names: GI:10639657, Ta0487
UniProt
Find proteins for Q9HKV6 (Thermoplasma acidophilum (strain ATCC 25905 / DSM 1728 / JCM 9062 / NBRC 15155 / AMRC-C165)) Explore Q9HKV6  Go to UniProtKB:  Q9HKV6

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
SO4	C [auth B]	SULFATE ION O4 S QAOWNCQODCNURD-UHFFFAOYSA-L

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Free:  0.241 (Depositor), 0.240 (DCC) 
• R-Value Work:  0.203 (Depositor), 0.200 (DCC) 
• R-Value Observed: 0.205 (Depositor) 

Space Group: P 2₁ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 143.596	α = 90
b = 39.718	β = 90
c = 55.946	γ = 90

Software Package:

Software Name	Purpose
SBC-Collect	data collection
HKL-3000	phasing
REFMAC	refinement
HKL-3000	data reduction
HKL-3000	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2009-12-15 
Deposition Author(s): Zhang, R., Li, H., Bearden, J., Joachimiak, A., Midwest Center for Structural Genomics (MCSG)

Revision History  

• Version 1.0: 2009-12-15
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Advisory, Version format compliance
• Version 1.2: 2024-11-27
  Changes: Data collection, Database references, Derived calculations, Structure summary