4PTH Oxidoreductase date Mar 10, 2014
title Ensemble Model For Escherichia Coli Dihydrofolate Reductase
authors D.A.Keedy, H.Van Den Bedem, D.A.Sivak, G.A.Petsko, D.Ringe, M.A.W J.S.Fraser
compound source
Molecule: Dihydrofolate Reductase
Chain: A
Engineered: Yes
Organism_scientific: Escherichia Coli
Organism_taxid: 316385
Strain: K12 Dh10b
Gene: Fola, Ecdh10b_0049
Expression_system: Escherichia Coli
Expression_system_taxid: 469008
Expression_system_strain: Bl21(De3)
Expression_system_vector_type: Plasmid
Expression_system_plasmid: Pet22b
symmetry Space Group: P 21 21 21
R_factor 0.126 R_Free 0.144
length a length b length c angle alpha angle beta angle gamma
33.960 44.823 98.254 90.00 90.00 90.00
method X-Ray Diffractionresolution 0.85 Å
ligand CSD, FOL, MN, NAP enzyme Oxidoreductase E.C. BRENDA
Gene ECDH10B

Primary referenceCrystal Cryocooling Distorts Conformational Heterogeneity in a Model Michaelis Complex of DHFR., Keedy DA, van den Bedem H, Sivak DA, Petsko GA, Ringe D, Wilson MA, Fraser JS, Structure. 2014 Jun 10;22(6):899-910. doi: 10.1016/j.str.2014.04.016. Epub 2014, May 29. PMID:24882744
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (25978 Kb) [Save to disk]
  • Biological Unit Coordinates (4pth.pdb1.gz) 108 Kb
  • LPC: Ligand-Protein Contacts for 4PTH
  • CSU: Contacts of Structural Units for 4PTH
  • Structure Factors (1256 Kb)
  • Retrieve 4PTH in mmCIF format [Save to disk]
  • View 4PTH 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 4PTH
  • 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
  • 3D motif for 4PTH, from MSDmotif at EBI
  • Fold representative 4pth from FSSP and Dali (Families of Structurally Similar Proteins)
  • Sequence-derived information
  • View one-letter amino acid or nucleotide sequence for each chain: [4pth] [4pth_A]
  • SWISS-PROT database:
  • Domain organization of by SWISSPFAM
  • Other resources with information on 4PTH
  • Community annotation for 4PTH at PDBWiki (http://pdbwiki.org)

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