2Q9G Oxidoreductase date Jun 12, 2007
title Crystal Structure Of Human Cytochrome P450 46a1
authors M.A.White, N.V.Mast, E.F.Johnson, C.D.Stout, I.A.Pikuleva
compound source
Molecule: Cytochrome P450 46a1
Chain: A
Fragment: Residues 51-500
Synonym: Cholesterol 24-Hydroxylase, Ch24h
Engineered: Yes
Organism_scientific: Homo Sapiens
Organism_common: Human
Gene: Cyp46a1, Cyp46
Expression_system: Escherichia Coli
Expression_system_strain: Dh5alpha
Expression_system_vector_type: Plasmid
Expression_system_plasmid: Puc18
symmetry Space Group: I 41 2 2
R_factor 0.189 R_Free 0.242
length a length b length c angle alpha angle beta angle gamma
121.350 121.350 142.570 90.00 90.00 90.00
method X-Ray Diffractionresolution 2.40 Å
ligand GOL, HEM enzyme Oxidoreductase E.C. BRENDA

Primary referenceCrystal structures of substrate-bound and substrate-free cytochrome P450 46A1, the principal cholesterol hydroxylase in the brain., Mast N, White MA, Bjorkhem I, Johnson EF, Stout CD, Pikuleva IA, Proc Natl Acad Sci U S A. 2008 Jul 15;105(28):9546-51. Epub 2008 Jul 9. PMID:18621681
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (77 Kb) [Save to disk]
  • Biological Unit Coordinates (2q9g.pdb1.gz) 72 Kb
  • LPC: Ligand-Protein Contacts for 2Q9G
  • CSU: Contacts of Structural Units for 2Q9G
  • Likely Quarternary Molecular Structure file(s) for 2Q9G
  • Structure Factors (201 Kb)
  • Retrieve 2Q9G in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 2Q9G from S2C, [Save to disk]
  • Re-refined 2q9g structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 2Q9G in 3D
  • Proteopedia, because life has more than 2D.
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  • On FirstGlance, an excellent tool for a guided tour on the structure components, by E. Martz.
  • Visual 3D analysis of 2Q9G
  • 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
  • 3D motif for 2Q9G, from MSDmotif at EBI
  • Fold representative 2q9g from FSSP and Dali (Families of Structurally Similar Proteins)
  • Sequence-derived information
  • View one-letter amino acid or nucleotide sequence for each chain: [2q9g] [2q9g_A]
  • SWISS-PROT database: [Q9Y6A2]
  • Domain organization of [CP46A_HUMAN] by SWISSPFAM
  • Other resources with information on 2Q9G
  • Community annotation for 2Q9G at PDBWiki (http://pdbwiki.org)
  • MMDB (Entrez's Structure Database)
  • Movements, Movies and Images
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