4E1L | pdb_00004e1l

Crystal structure of Acetoacetyl-CoA thiolase (thlA2) from Clostridium difficile

• PDB DOI: https://doi.org/10.2210/pdb4E1L/pdb

• Classification: TRANSFERASE
• Organism(s): Clostridioides difficile 630
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2012-03-06 Released: 2012-03-21 
• Deposition Author(s): Anderson, S.M., Wawrzak, Z., Kudritska, M., Peterson, S.N., Anderson, W.F., Savchenko, A., Center for Structural Genomics of Infectious Diseases (CSGID)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Free: 
  0.207 (Depositor), 0.204 (DCC) 
• R-Value Work: 
  0.175 (Depositor), 0.173 (DCC) 
• R-Value Observed: 
  0.176 (Depositor) 

Starting Model: experimental

Literature

A high-throughput structural system biology approach to increase structure representation of proteins from Clostridioides difficile.

Rosas-Lemus, M., Dey, S., Minasov, G., Tan, K., Anderson, S.M., Brunzelle, J., Nocadello, S., Shabalin, I., Filippova, E., Halavaty, A., Kim, Y., Maltseva, N., Osipiuk, J., Minor, W., Joachimiak, A., Savchenko, A., Anderson, W.F., Satchell, K.J.F.

(2023) Microbiol Resour Announc 12: e0050723-e0050723

• PubMed: 37747257 
• DOI: https://doi.org/10.1128/MRA.00507-23
• Primary Citation Related Structures: 
  3SD7, 3SRT, 3UUW, 4DD5, 4DGT, 4DQ6, 4DUN, 4E1L, 4EGU, 4GIB, 4H3D, 4ISX, 4JJP, 4KD5, 4MFG, 4NMY, 4RN7, 5DZS, 5TTA, 5TV7, 5TXU, 6N7M, 6UE2, 6WY4, 7K1U, 7RL8, 7RLR


• PubMed Abstract: 
  

  Clostridioides difficile causes life-threatening gastrointestinal infections. It is a high-risk pathogen due to a lack of effective treatments, antimicrobial resistance, and a poorly conserved genomic core. Herein, we report 30 X-ray structures from a structure genomics pipeline spanning 13 years, representing 10.2% of the X-ray structures for this important pathogen.

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Organizational Affiliation: 
• Department of Microbiology-Immunology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA.
Center for Structural Biology of Infectious Diseases, Chicago, Illinois, USA.
Consortium for Advanced Science and Engineering, University of Chicago, Chicago, Illinois, USA.
Structural Biology Center, X-ray Science Division, Argonne National Laboratory, Argonne, Illinois, USA.
Northwestern Synchrotron Research Center, Life Sciences Collaborative Access Team, Northwestern University, Argonne, Illinois, USA.
Department of Molecular Physiology and Biological Physics, University of Virginia, Charlottesville, Virginia, USA.
Department of Microbiology, Immunology and Infectious Diseases, University of Calgary, Calgary, Alberta, Canada.
Department of Biochemistry and Molecular Genetics, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA.

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 4-mer - A4 

Biological assembly 1 assigned by authors.

Macromolecule Content 

• Total Structure Weight: 174 kDa 
• Atom Count: 11,993 
• Modeled Residue Count: 1,499 
• Deposited Residue Count: 1,580 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Acetoacetyl-CoA thiolase 2	A, B, C, D	395	Clostridioides difficile 630	Mutation(s): 0  Gene Names: thlA2, CD630_26760 EC: 2.3.1.9
UniProt
Find proteins for Q183B0 (Clostridioides difficile (strain 630)) Explore Q183B0  Go to UniProtKB:  Q183B0

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
IOD	AA [auth B], AB [auth D], BA [auth B], BB [auth D], CA [auth B], CB [auth D], DA [auth B], DB [auth D], E [auth A], EA [auth B], EB [auth D], F [auth A], FA [auth B], FB [auth D], G [auth A], GA [auth C], GB [auth D], H [auth A], HA [auth C], HB [auth D], I [auth A], IA [auth C], IB [auth D], J [auth A], JA [auth C], K [auth A], KA [auth C], L [auth A], LA [auth C], M [auth A], MA [auth C], N [auth A], NA [auth C], O [auth A], OA [auth C], P [auth A], PA [auth C], Q [auth A], QA [auth C], R [auth A], RA [auth C], S [auth B], SA [auth C], T [auth B], TA [auth C], U [auth B], UA [auth C], V [auth B], VA [auth D], W [auth B], WA [auth D], X [auth B], XA [auth D], Y [auth B], YA [auth D], Z [auth B], ZA [auth D]	IODIDE ION I XMBWDFGMSWQBCA-UHFFFAOYSA-M

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Free:  0.207 (Depositor), 0.204 (DCC) 
• R-Value Work:  0.175 (Depositor), 0.173 (DCC) 
• R-Value Observed: 0.176 (Depositor) 

Diffraction Data: https://doi.org/10.18430/m34e1l

Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 103.32	α = 90
b = 78.92	β = 112.73
c = 127.03	γ = 90

Software Package:

Software Name	Purpose
SCALEPACK	data scaling
PHENIX	refinement
PDB_EXTRACT	data extraction
BLU-MAX	data collection
HKL-2000	data reduction
HKL-2000	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2012-03-21 
Deposition Author(s): Anderson, S.M., Wawrzak, Z., Kudritska, M., Peterson, S.N., Anderson, W.F., Savchenko, A., Center for Structural Genomics of Infectious Diseases (CSGID)

Revision History  

• Version 1.0: 2012-03-21
  Type: Initial release
  
• Version 1.1: 2023-09-13
  Changes: Data collection, Database references, Derived calculations, Refinement description
• Version 1.2: 2026-04-29
  Changes: Database references, Structure summary