1XKN

Crystal Structure of the Putative Peptidyl-arginine Deiminase from Chlorobium tepidum, NESG Target CtR21

• PDB DOI: https://doi.org/10.2210/pdb1XKN/pdb

• Classification: STRUCTURAL GENOMICS
• Organism(s): Chlorobaculum tepidum TLS
• Expression System: Escherichia coli
• Mutation(s): Yes 


• Deposited: 2004-09-29 Released: 2004-11-16 
• Deposition Author(s): Forouhar, F., Befeler, A.R., Vorobiev, S.M., Hussain, M., Ciano, M., Acton, T.B., Montelione, G.T., Hunt, J.F., Tong, L., Northeast Structural Genomics Consortium (NESG)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.60 Å
• R-Value Free: 
  0.196 (Depositor) 
• R-Value Work: 
  0.180 (Depositor) 
• R-Value Observed: 
  0.180 (Depositor) 

Literature

Crystal Structure of the Putative Peptidyl-arginine Deiminase from Chlorobium tepidum, NESG Target CtR21

Forouhar, F., Befeler, A.R., Vorobiev, S.M., Hussain, M., Ciano, M., Acton, T.B., Montelione, G.T., Hunt, J.F., Tong, L.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 40.74 kDa 
• Atom Count: 3,416 
• Modelled Residue Count: 353 
• Deposited Residue Count: 355 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
putative peptidyl-arginine deiminase	A	355	Chlorobaculum tepidum TLS	Mutation(s): 9
UniProt
Find proteins for Q8KCB6 (Chlorobaculum tepidum (strain ATCC 49652 / DSM 12025 / NBRC 103806 / TLS)) Explore Q8KCB6  Go to UniProtKB:  Q8KCB6

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
CL	C [auth A]	CHLORIDE ION Cl VEXZGXHMUGYJMC-UHFFFAOYSA-M
NA	B [auth A]	SODIUM ION Na FKNQFGJONOIPTF-UHFFFAOYSA-N

Modified Residues  1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
MSE	A	L-PEPTIDE LINKING	C5 H11 N O2 Se		MET

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.60 Å
• R-Value Free:  0.196 (Depositor) 
• R-Value Work:  0.180 (Depositor) 
• R-Value Observed: 0.180 (Depositor) 

Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 49.118	α = 90
b = 82.372	β = 90
c = 85.719	γ = 90

Software Package:

Software Name	Purpose
CNS	refinement
DENZO	data reduction
SCALEPACK	data scaling
SnB	phasing
SOLVE	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2004-11-16 
Deposition Author(s): Forouhar, F., Befeler, A.R., Vorobiev, S.M., Hussain, M., Ciano, M., Acton, T.B., Montelione, G.T., Hunt, J.F., Tong, L., Northeast Structural Genomics Consortium (NESG)

Revision History  

• Version 1.0: 2004-11-16
  Type: Initial release
  
• Version 1.1: 2008-04-30
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Source and taxonomy, Version format compliance
• Version 1.3: 2017-10-11
  Changes: Refinement description
• Version 1.4: 2024-10-16
  Changes: Data collection, Database references, Derived calculations, Structure summary