4X2Q Oxidoreductase date Nov 26, 2014
title Crystal Structure Of Human Aldehyde Dehydrogenase, Aldh1a2
authors R.E.Stenkamp, I.Le Trong, J.K.Amory, J.Paik, A.S.Goldstein
compound source
Molecule: Retinal Dehydrogenase 2
Chain: A, B, C, D
Synonym: Raldh2,Aldehyde Dehydrogenase Family 1 Member A2, Retinaldehyde-Specific Dehydrogenase Type 2,Raldh(II);
Engineered: Yes
Organism_scientific: Homo Sapiens
Organism_common: Human
Organism_taxid: 9606
Gene: Aldh1a2, Raldh2
Expression_system: Escherichia Coli
Expression_system_taxid: 562
Expression_system_strain: Bl21deltae3
Expression_system_vector_type: Plasmid
Expression_system_plasmid: Petite
symmetry Space Group: P 21 21 21
R_factor 0.266 R_Free 0.313
length a length b length c angle alpha angle beta angle gamma
84.597 140.508 164.452 90.00 90.00 90.00
method X-Ray Diffractionresolution 2.94 Å
ligand NAD enzyme Oxidoreductase E.C. BRENDA
A, D, C, B

Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (631 Kb) [Save to disk]
  • Biological Unit Coordinates (4x2q.pdb1.gz) 620 Kb
  • LPC: Ligand-Protein Contacts for 4X2Q
  • CSU: Contacts of Structural Units for 4X2Q
  • Structure Factors (761 Kb)
  • Retrieve 4X2Q in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 4X2Q from S2C, [Save to disk]
  • Re-refined 4x2q structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 4X2Q 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 4X2Q
  • Cartoon representation from PDB Cartoon
  • Ramachandran plot from PDBSum
  • Structure-derived information
  • Electron Density related parameters from EDS Electron Density Server, at Upsala
  • Dipole moment, from Dipole Server at Weizmann Institute
  • Crystal Contacts, from CryCo at Weizmann Institute
  • Fold representative 4x2q from FSSP and Dali (Families of Structurally Similar Proteins)
  • Sequence-derived information
  • View one-letter amino acid or nucleotide sequence for each chain: [4x2q_B] [4x2q_C] [4x2q] [4x2q_D] [4x2q_A]
  • SWISS-PROT database:
  • Domain organization of by SWISSPFAM
  • Other resources with information on 4X2Q
  • Community annotation for 4X2Q at PDBWiki (http://pdbwiki.org)

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