1D4A	Oxidoreductase	date	Oct 01, 1999
title	Crystal Structure Of Human Nad[P]H-Quinone Oxidoreductase At Resolution
authors	M.Faig, M.A.Bianchet, S.Chen, S.Winski, D.Ross, L.M.Amzel
compound		source
Molecule: Quinone Reductase Chain: A, B, C, D Synonym: Dt-Diaphorase 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 0.209 R_Free 0.253
crystal cell	length a length b length c angle alpha angle beta angle gamma 55.678 57.032 97.402 77.04 76.72 86.89
method	X-Ray Diffraction	resolution	1.70 Å
ligand	FAD	enzyme	Oxidoreductase E.C.1.6.99.2 BRENDA
related structures	by homologous chain: 1KBQ
Gene Ontology	Chain Function Process Component A, D, C, B superoxide dismutase activit... synaptic transmission, choli...
Primary reference	Structures of recombinant human and mouse NAD(P)H:quinone oxidoreductases: species comparison and structural changes with substrate binding and release., Faig M, Bianchet MA, Talalay P, Chen S, Winski S, Ross D, Amzel LM, Proc Natl Acad Sci U S A. 2000 Mar 28;97(7):3177-82. PMID:10706635

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (191 Kb) [Save to disk] Biological Unit Coordinates (1d4a.pdb1.gz) 94 Kb Biological Unit Coordinates (1d4a.pdb2.gz) 95 Kb LPC: Ligand-Protein Contacts for 1D4A CSU: Contacts of Structural Units for 1D4A Likely Quarternary Molecular Structure file(s) for 1D4A Structure Factors (793 Kb) Retrieve 1D4A in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1D4A from S2C, [Save to disk] Re-refined 1d4a structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1D4A in 3D

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Visual 3D analysis of 1D4A

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 1D4A, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1d4aa_, region A [Jmol] [rasmolscript] [script source]     - Domain d1d4ab_, region B [Jmol] [rasmolscript] [script source]     - Domain d1d4ac_, region C [Jmol] [rasmolscript] [script source]     - Domain d1d4ad_, 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: [1d4a_D] [1d4a] [1d4a_B] [1d4a_C] [1d4a_A] SWISS-PROT database: [P15559] Domain organization of [NQO1_HUMAN] by SWISSPFAM

Other resources with information on 1D4A

Community annotation for 1D4A at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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