3QIK | pdb_00003qik

Crystal structure of the first PDZ domain of PREX1

• PDB DOI: https://doi.org/10.2210/pdb3QIK/pdb

• Classification: HYDROLASE REGULATOR
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2011-01-27 Released: 2011-02-16 
• Deposition Author(s): Shen, L., Tong, Y., Tempel, W., Li, Y., Arrowsmith, C.H., Edwards, A.M., Bountra, C., Weigelt, J., Park, H., Structural Genomics Consortium (SGC)

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.29 Å
• R-Value Free: 
  0.269 (Depositor), 0.267 (DCC) 
• R-Value Work: 
  0.242 (Depositor), 0.235 (DCC) 
• R-Value Observed: 
  0.244 (Depositor) 

Literature

Crystal structure of the first PDZ domain of PREX1

Shen, L., Tong, Y., Tempel, W., Li, Y., Arrowsmith, C.H., Edwards, A.M., Bountra, C., Weigelt, J., Park, H.

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 generated by PISA (software)

Macromolecule Content 

• Total Structure Weight: 11.52 kDa 
• Atom Count: 814 
• Modeled Residue Count: 101 
• Deposited Residue Count: 101 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Phosphatidylinositol 3,4,5-trisphosphate-dependent Rac exchanger 1 protein	A	101	Homo sapiens	Mutation(s): 0  Gene Names: PREX1, KIAA1415
UniProt & NIH Common Fund Data Resources
Find proteins for Q8TCU6 (Homo sapiens) Explore Q8TCU6  Go to UniProtKB:  Q8TCU6
PHAROS:  Q8TCU6 GTEx:  ENSG00000124126

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
UNX	B [auth A], C [auth A], D [auth A], E [auth A], F [auth A], G [auth A], H [auth A], I [auth A]	UNKNOWN ATOM OR ION X

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.29 Å
• R-Value Free:  0.269 (Depositor), 0.267 (DCC) 
• R-Value Work:  0.242 (Depositor), 0.235 (DCC) 
• R-Value Observed: 0.244 (Depositor) 

Space Group: P 3₁ 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 78.135	α = 90
b = 78.135	β = 90
c = 54.691	γ = 120

Software Package:

Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
SHELX	phasing
RESOLVE	phasing
REFMAC	refinement
PDB_EXTRACT	data extraction
StructureStudio	data collection
HKL-2000	data reduction
HKL-2000	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2011-02-16 
Deposition Author(s): Shen, L., Tong, Y., Tempel, W., Li, Y., Arrowsmith, C.H., Edwards, A.M., Bountra, C., Weigelt, J., Park, H., Structural Genomics Consortium (SGC)

Revision History  

• Version 1.0: 2011-02-16
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance
• Version 1.2: 2017-11-08
  Changes: Refinement description
• Version 1.3: 2024-02-21
  Changes: Data collection, Database references