2VUX

Human ribonucleotide reductase, subunit M2 B

• PDB DOI: https://doi.org/10.2210/pdb2VUX/pdb

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


• Deposited: 2008-05-31 Released: 2008-07-15 
• Deposition Author(s): Welin, M., Moche, M., Andersson, J., Arrowsmith, C.H., Berglund, H., Busam, R.D., Collins, R., Dahlgren, L.G., Edwards, A.M., Flodin, S., Flores, A., Graslund, S., Hammarstrom, M., Herman, M.D., Johansson, A., Johansson, I., Kallas, A., Karlberg, T., Kotenyova, T., Lehtio, L., Nilsson, M.E., Nyman, T., Persson, C., Sagemark, J., Schueler, H., Svensson, L., Thorsell, A.G., Tresaugues, L., van Den Berg, S., Weigelt, J., Wikstrom, M., Nordlund, P., Structural Genomics Consortium (SGC)

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.80 Å
• R-Value Free: 
  0.258 (Depositor), 0.260 (DCC) 
• R-Value Work: 
  0.209 (Depositor), 0.220 (DCC) 
• R-Value Observed: 
  0.213 (Depositor) 

Starting Model: experimental

Literature

Human Ribonucleotide Reductase, Subunit M2 B

Welin, M., Moche, M., Arrowsmith, C.H., Berglund, H., Busam, R.D., Collins, R., Dahlgren, L.G., Edwards, A.M., Flodin, S., Flores, A., Graslund, S., Hammarstrom, M., Herman, M.D., Johansson, A., Johansson, I., Kallas, A., Karlberg, T., Kotenyova, T., Lehtio, L., Nilsson, M.E., Nyman, T., Persson, C., Sagemark, J., Schueler, H., Svensson, L., Thorsell, A.G., Tresaugues, L., Van Den Berg, S., Weigelt, J., Wikstrom, M., 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: 76.04 kDa 
• Atom Count: 4,362 
• Modelled Residue Count: 527 
• Deposited Residue Count: 652 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
RIBONUCLEOSIDE-DIPHOSPHATE REDUCTASE SUBUNIT M2 B	A, B	326	Homo sapiens	Mutation(s): 0  EC: 1.17.4.1
UniProt & NIH Common Fund Data Resources
Find proteins for Q7LG56 (Homo sapiens) Explore Q7LG56  Go to UniProtKB:  Q7LG56
PHAROS:  Q7LG56 GTEx:  ENSG00000048392

Small Molecules

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

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.80 Å
• R-Value Free:  0.258 (Depositor), 0.260 (DCC) 
• R-Value Work:  0.209 (Depositor), 0.220 (DCC) 
• R-Value Observed: 0.213 (Depositor) 

Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 68.96	α = 90
b = 99.47	β = 90
c = 132.58	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: 2008-07-15 
Deposition Author(s): Welin, M., Moche, M., Andersson, J., Arrowsmith, C.H., Berglund, H., Busam, R.D., Collins, R., Dahlgren, L.G., Edwards, A.M., Flodin, S., Flores, A., Graslund, S., Hammarstrom, M., Herman, M.D., Johansson, A., Johansson, I., Kallas, A., Karlberg, T., Kotenyova, T., Lehtio, L., Nilsson, M.E., Nyman, T., Persson, C., Sagemark, J., Schueler, H., Svensson, L., Thorsell, A.G., Tresaugues, L., van Den Berg, S., Weigelt, J., Wikstrom, M., Nordlund, P., Structural Genomics Consortium (SGC)

Revision History  

• Version 1.0: 2008-07-15
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Advisory, Refinement description, Version format compliance
• Version 1.2: 2023-12-13
  Changes: Data collection, Database references, Derived calculations, Other, Refinement description