4X3V Oxidoreductase Oxidoreductase Inhibitor date Dec 01, 2014
title Crystal Structure Of Human Ribonucleotide Reductase 1 Bound Inhibitor
authors C.G.Dealwis, M.F.Ahmad, I.Alam
compound source
Molecule: Ribonucleoside-Diphosphate Reductase Large Subuni
Chain: A, B
Synonym: Ribonucleoside-Diphosphate Reductase Subunit M1, Ribonucleotide Reductase Large Subunit;
Engineered: Yes
Organism_scientific: Homo Sapiens
Organism_common: Human
Organism_taxid: 9606
Gene: Rrm1, Rr1
Expression_system: Escherichia Coli
Expression_system_taxid: 562
symmetry Space Group: P 21 21 21
R_factor 0.232 R_Free 0.289
length a length b length c angle alpha angle beta angle gamma
71.880 110.498 216.721 90.00 90.00 90.00
method X-Ray Diffractionresolution 3.70 Å
ligand 3X4, TTP enzyme Oxidoreductase E.C. BRENDA
A, B

Primary referenceIdentification of Non-nucleoside Human Ribonucleotide Reductase Modulators., Ahmad MF, Huff SE, Pink J, Alam I, Zhang A, Perry K, Harris ME, Misko T, Porwal SK, Oleinick NL, Miyagi M, Viswanathan R, Dealwis CG, J Med Chem. 2015 Dec 24;58(24):9498-509. doi: 10.1021/acs.jmedchem.5b00929. Epub , 2015 Dec 9. PMID:26488902
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (237 Kb) [Save to disk]
  • Biological Unit Coordinates (4x3v.pdb1.gz) 230 Kb
  • LPC: Ligand-Protein Contacts for 4X3V
  • CSU: Contacts of Structural Units for 4X3V
  • Structure Factors (282 Kb)
  • Retrieve 4X3V in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 4X3V from S2C, [Save to disk]
  • Re-refined 4x3v structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 4X3V in 3D
  • Proteopedia, because life has more than 2D.
  • On Jmol, a nice Rasmol like molecule viewer. This is good for easiest viewing of basic structure.
  • On FirstGlance, an excellent tool for a guided tour on the structure components, by E. Martz.
  • Visual 3D analysis of 4X3V
  • Cartoon representation from PDB Cartoon
  • Ramachandran plot from PDBSum
  • Structure-derived information
  • Dipole moment, from Dipole Server at Weizmann Institute
  • Crystal Contacts, from CryCo at Weizmann Institute
  • Fold representative 4x3v from FSSP and Dali (Families of Structurally Similar Proteins)
  • Sequence-derived information
  • View one-letter amino acid or nucleotide sequence for each chain: [4x3v_A] [4x3v] [4x3v_B]
  • SWISS-PROT database:
  • Domain organization of by SWISSPFAM
  • Other resources with information on 4X3V
  • Community annotation for 4X3V at PDBWiki (http://pdbwiki.org)

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