3MXI | pdb_00003mxi

TREX1 3' Exonuclease D18N Familial Chilblain Lupus Mutant

• PDB DOI: https://doi.org/10.2210/pdb3MXI/pdb
• NAKB: 3MXI

• Classification: HYDROLASE/DNA
• Organism(s): Mus musculus
• Expression System: Escherichia coli
• Mutation(s): Yes 


• Deposited: 2010-05-07 Released: 2011-05-18 
• Deposition Author(s): Bailey, S.L., Hollis, T.

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.55 Å
• R-Value Free: 
  0.262 (Depositor), 0.258 (DCC) 
• R-Value Work: 
  0.209 (Depositor), 0.208 (DCC) 
• R-Value Observed: 
  0.212 (Depositor) 

Literature

X-ray Crystal Structures of TREX1 3' Exonuclease Autoimmune Disease Mutants

Bailey, S.L., Harvey, S., Perrino, F.W., Hollis, T.

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: 55.24 kDa 
• Atom Count: 3,589 
• Modeled Residue Count: 438 
• Deposited Residue Count: 492 
• Unique protein chains: 1
• Unique nucleic acid chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Three prime repair exonuclease 1	A [auth B], B [auth A]	242	Mus musculus	Mutation(s): 1  Gene Names: Trex1 EC: 3.1.11.2
UniProt & NIH Common Fund Data Resources
Find proteins for Q91XB0 (Mus musculus) Explore Q91XB0  Go to UniProtKB:  Q91XB0
IMPC:  MGI:1328317

Entity ID: 2
Molecule	Chains	Length	Organism	Image
DNA (5'-D(*GP*AP*CP*G)-3')	C, D	4	N/A

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
CA	E [auth B], F [auth A], G [auth C], H [auth D]	CALCIUM ION Ca BHPQYMZQTOCNFJ-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.55 Å
• R-Value Free:  0.262 (Depositor), 0.258 (DCC) 
• R-Value Work:  0.209 (Depositor), 0.208 (DCC) 
• R-Value Observed: 0.212 (Depositor) 

Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 64.028	α = 90
b = 58.776	β = 110.33
c = 66.523	γ = 90

Software Package:

Software Name	Purpose
CrystalClear	data collection
PHASER	phasing
PHENIX	refinement
d*TREK	data reduction
d*TREK	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2011-05-18 
Deposition Author(s): Bailey, S.L., Hollis, T.

Revision History  

• Version 1.0: 2011-05-18
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance
• Version 1.2: 2024-02-21
  Changes: Data collection, Database references, Derived calculations