Biological Assembly 1  

Global Symmetry: Cyclic - C3  (3D View)
Global Stoichiometry: Homo 3-mer - A3 

Biological assembly 1 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 48.73 kDa 
• Atom Count: 3,361 
• Modelled Residue Count: 390 
• Deposited Residue Count: 441 
• Unique protein chains: 1

 1Q5U

HUMAN DUTP PYROPHOSPHATASE

• PDB DOI:  https://doi.org/10.2210/pdb1Q5U/pdb

• Classification: HYDROLASE
• Organism(s): Homo sapiens
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2003-08-11 Released: 2003-08-19 
• Deposition Author(s): Mol, C.D., Harris, J.M., Mcintosh, E.M., Tainer, J.A.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Free: 0.226 
• R-Value Work: 0.188 
• R-Value Observed: 0.190 

Literature

Human dUTP Pyrophosphatase: Uracil Recognition by a Beta Hairpin and Active Sites Formed by Three Separate Subunits

Mol, C.D., Harris, J.M., Mcintosh, E.M., Tainer, J.A.

(1996) Structure 4: 1077-1092

• PubMed: 8805593 
• DOI: https://doi.org/10.1016/s0969-2126(96)00114-1
• Primary Citation of Related Structures:  
  1Q5H, 1Q5U


• PubMed Abstract: 
  

The essential enzyme dUTP pyrophosphatase (dUTPase) is exquisitely specific for dUTP and is critical for the fidelity of DNA replication and repair. dUTPase hydrolyzes dUTP to dUMP and pyrophosphate, simultaneously reducing dUTP levels and providing the dUMP for dTTP biosynthesis. A high cellular dTTP: dUTP ratio is essential to avoid uracil incorporation into DNA, which would lead to strand breaks and cell death. We report the first detailed atomic-resolution structure of a eukaryotic dUTPase, human dUTPase, and complexes with the uracil-containing deoxyribonucleotides, dUMP, dUDP and dUTP.

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Organizational Affiliation: 

Department of Molecular Biology, MB-4, The Scripps Research Institute, 10666 North Torrey Pines Rd, La Jolla, CA 92037, USA.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
dUTP pyrophosphatase	A [auth X], B [auth Y], C [auth Z]	147	Homo sapiens	Mutation(s): 0  Gene Names: HDUT, DUT EC: 3.6.1.23
UniProt & NIH Common Fund Data Resources
Find proteins for P33316 (Homo sapiens) Explore P33316  Go to UniProtKB:  P33316
PHAROS:  P33316

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Free: 0.226 
• R-Value Work: 0.188 
• R-Value Observed: 0.190 
• Space Group: P 2₁ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 72.991	α = 90
b = 110.666	β = 90
c = 52.954	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
DENZO	data reduction
SCALEPACK	data scaling
AMoRE	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2003-08-19 
Deposition Author(s): Mol, C.D., Harris, J.M., Mcintosh, E.M., Tainer, J.A.

Revision History  

• Version 1.0: 2003-08-19
  Type: Initial release
  
• Version 1.1: 2008-04-29
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Advisory, Version format compliance