2UW2

Crystal structure of human ribonucleotide reductase subunit R2

• PDB DOI: https://doi.org/10.2210/pdb2UW2/pdb
• Entry: 2UW2 supersedes: 2IYH

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


• Deposited: 2007-03-16 Released: 2007-04-03 
• Deposition Author(s): Welin, M., Ogg, D., Arrowsmith, C., Berglund, H., Busam, R., Collins, R., Edwards, A., Ehn, M., Flodin, S., Flores, A., Graslund, S., Hammarstrom, M., Hallberg, B.M., Holmberg Schiavone, L., Hogbom, M., Kotenyova, T., Magnusdottir, A., Moche, M., Nilsson-Ehle, P., Nyman, T., Persson, C., Sagemark, J., Sundstrom, M., Stenmark, P., Uppenberg, J., Thorsell, A.G., Van Den Berg, S., Wallden, K., Weigelt, J., Nordlund, P.

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.80 Å
• R-Value Free: 0.294 
• R-Value Work: 0.230 
• R-Value Observed: 0.233 

Literature

Crystal Structure of Human Ribonucleotide Reductase Subunit R2

Welin, M., Ogg, D., Arrowsmith, C., Berglund, H., Busam, R., Collins, R., Edwards, A., Ehn, M., Flodin, S., Flores, A., Graslund, S., Hammarstrom, M., Hallberg, B.M., Holmberg Schiavone, L., Hogbom, M., Kotenyova, T., Magnusdottir, A., Moche, M., Nilsson-Ehle, P., Nyman, T., Persson, C., Sagemark, J., Sundstrom, M., Stenmark, P., Uppenberg, J., Thorsell, A.G., Van Den Berg, S., Wallden, K., Weigelt, J., Nordlund, P.

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 PQS (software)

Macromolecule Content

• Total Structure Weight: 38.75 kDa 
• Atom Count: 2,276 
• Modelled Residue Count: 275 
• Deposited Residue Count: 332 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
RIBONUCLEOSIDE-DIPHOSPHATE REDUCTASE M2 SUBUNIT	A	332	Homo sapiens	Mutation(s): 0  EC: 1.17.4.1
UniProt & NIH Common Fund Data Resources
Find proteins for P31350 (Homo sapiens) Explore P31350  Go to UniProtKB:  P31350
PHAROS:  P31350 GTEx:  ENSG00000171848

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
FE	B [auth A]	FE (III) ION Fe VTLYFUHAOXGGBS-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.80 Å
• R-Value Free: 0.294 
• R-Value Work: 0.230 
• R-Value Observed: 0.233 
• Space Group: C 2 2 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 76.12	α = 90
b = 110.7	β = 90
c = 94.42	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
XDS	data reduction
XSCALE	data scaling
MOLREP	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2007-04-03 
Deposition Author(s): Welin, M., Ogg, D., Arrowsmith, C., Berglund, H., Busam, R., Collins, R., Edwards, A., Ehn, M., Flodin, S., Flores, A., Graslund, S., Hammarstrom, M., Hallberg, B.M., Holmberg Schiavone, L., Hogbom, M., Kotenyova, T., Magnusdottir, A., Moche, M., Nilsson-Ehle, P., Nyman, T., Persson, C., Sagemark, J., Sundstrom, M., Stenmark, P., Uppenberg, J., Thorsell, A.G., Van Den Berg, S., Wallden, K., Weigelt, J., Nordlund, P.
• This entry supersedes: 2IYH

Revision History  

• Version 1.0: 2007-04-03
  Type: Initial release
  
• Version 1.1: 2011-05-08
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance