1QBG	Oxidoreductase	date	Apr 20, 1999
title	Crystal Structure Of Human Dt-Diaphorase (Nad(P)H Oxidoreduc
authors	J.V.Skelly, M.R.Sanderson, D.A.Suter, U.Baumann, D.S.Gregory, M.B S.M.Hobbs, S.Neidle
compound		source
Molecule: Nad(P)H Dehydrogenase [Quinone] 1 Chain: A, B, C, D Synonym: Dt-Diaphorase (Nad(P)H Oxidoreductase (Quinone), Q Reductase, Dt-Diaphorase, Dtd, Nad(P)H Menadione Oxidoreduc Dioxin-Inducible; Ec: 1.6.99.2 Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Expression_system: Escherichia Coli Expression_system_taxid: 562
symmetry	Space Group: P 1	R_factor 0.232 R_Free 0.280
crystal cell	length a length b length c angle alpha angle beta angle gamma 55.880 57.490 98.770 77.10 76.20 86.90
method	X-Ray Diffraction	resolution	2.30 Å
ligand	FAD	enzyme	Oxidoreductase E.C.1.6.99.2 BRENDA
related structures	by homologous chain: 1KBO, 1QRD
Gene Ontology	Chain Function Process Component A, D, C, B superoxide dismutase activit... synaptic transmission, choli...
Primary reference	Crystal structure of human DT-diaphorase: a model for interaction with the cytotoxic prodrug 5-(aziridin-1-yl)-2,4-dinitrobenzamide (CB1954)., Skelly JV, Sanderson MR, Suter DA, Baumann U, Read MA, Gregory DS, Bennett M, Hobbs SM, Neidle S, J Med Chem 1999 Oct 21;42(21):4325-30. PMID:10543876

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (181 Kb) [Save to disk] Biological Unit Coordinates (1qbg.pdb1.gz) 45 Kb Biological Unit Coordinates (1qbg.pdb2.gz) 45 Kb Biological Unit Coordinates (1qbg.pdb3.gz) 46 Kb Biological Unit Coordinates (1qbg.pdb4.gz) 46 Kb Biological Unit Coordinates (1qbg.pdb5.gz) 89 Kb Biological Unit Coordinates (1qbg.pdb6.gz) 88 Kb LPC: Ligand-Protein Contacts for 1QBG CSU: Contacts of Structural Units for 1QBG Likely Quarternary Molecular Structure file(s) for 1QBG Structure Factors (377 Kb) Retrieve 1QBG in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1QBG from S2C, [Save to disk] Re-refined 1qbg structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1QBG 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 1QBG

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 3D motif for 1QBG, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1qbga_, region A [Jmol] [rasmolscript] [script source]     - Domain d1qbgb_, region B [Jmol] [rasmolscript] [script source]     - Domain d1qbgc_, region C [Jmol] [rasmolscript] [script source]     - Domain d1qbgd_, region D [Jmol] [rasmolscript] [script source] Class (fold), Architecture (subfold), Topology, Homologous superfamily from CATH Summaries and structural analyses of PDB data files from PDBSum Identification of Protein Pockets & Cavities at CASTp

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [1qbg_A] [1qbg] [1qbg_B] [1qbg_D] [1qbg_C] SWISS-PROT database: [P15559] Domain organization of [NQO1_HUMAN] by SWISSPFAM

Other resources with information on 1QBG

Community annotation for 1QBG at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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