4L8N

Crystal structure of a PDZ domain protein (BDI_1242) from Parabacteroides distasonis ATCC 8503 at 2.50 A resolution

• PDB DOI: https://doi.org/10.2210/pdb4L8N/pdb

• Classification: STRUCTURAL GENOMICS, UNKNOWN FUNCTION
• Organism(s): Parabacteroides distasonis ATCC 8503
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2013-06-17 Released: 2013-06-26 
• Deposition Author(s): Joint Center for Structural Genomics (JCSG)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.50 Å
• R-Value Free: 0.220 
• R-Value Work: 0.186 
• R-Value Observed: 0.188 

Literature

Crystal structure of a PDZ domain protein (BDI_1242) from Parabacteroides distasonis ATCC 8503 at 2.50 A resolution

Joint Center for Structural Genomics (JCSG)

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: 52.98 kDa 
• Atom Count: 3,694 
• Modelled Residue Count: 448 
• Deposited Residue Count: 457 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
PDZ domain protein	A	457	Parabacteroides distasonis ATCC 8503	Mutation(s): 0  Gene Names: BDI_1242
UniProt
Find proteins for A6LBD9 (Parabacteroides distasonis (strain ATCC 8503 / DSM 20701 / CIP 104284 / JCM 5825 / NCTC 11152)) Explore A6LBD9  Go to UniProtKB:  A6LBD9

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
MPD	C [auth A]	(4S)-2-METHYL-2,4-PENTANEDIOL C6 H14 O2 SVTBMSDMJJWYQN-YFKPBYRVSA-N
EOH	B [auth A]	ETHANOL C2 H6 O LFQSCWFLJHTTHZ-UHFFFAOYSA-N
MG	D [auth A]	MAGNESIUM ION Mg JLVVSXFLKOJNIY-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: 2.50 Å
• R-Value Free: 0.220 
• R-Value Work: 0.186 
• R-Value Observed: 0.188 
• Space Group: P 3₁ 2 1
• Diffraction Data: https://doi.org/10.18430/M34L8N

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 104.093	α = 90
b = 104.093	β = 90
c = 96.277	γ = 120

Software Package:

Software Name	Purpose
MolProbity	model building
PDB_EXTRACT	data extraction
SHELX	phasing
SHARP	phasing
XSCALE	data scaling
BUSTER-TNT	refinement
XDS	data reduction
SHELXD	phasing
BUSTER	refinement

Structure Validation

Entry History 

Deposition Data

• Released Date: 2013-06-26 
Deposition Author(s): Joint Center for Structural Genomics (JCSG)

Revision History  

• Version 1.0: 2013-06-26
  Type: Initial release
  
• Version 1.1: 2017-11-15
  Changes: Refinement description
• Version 1.2: 2023-02-01
  Changes: Database references, Derived calculations
• Version 1.3: 2024-11-20
  Changes: Data collection, Structure summary