3CAV	Oxidoreductase	date	Feb 20, 2008
title	Crystal Structure Of 5beta-Reductase (Akr1d1) In Complex With Nadp+ And 5beta-Pregnan-3,20-Dione
authors	F.Faucher, L.Cantin, R.Breton
compound		source
Molecule: 3-Oxo-5-Beta-Steroid 4-Dehydrogenase Chain: A, B Synonym: Delta(4)-3-Ketosteroid 5-Beta-Reductase, Aldo- Keto Reductase Family 1 Member D1; Ec: 1.3.1.3 Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Gene: Akr1d1, Srd5b1 Expression_system: Escherichia Coli Expression_system_strain: Bl21(De3)Plys Expression_system_vector_type: Plasmid Expression_system_plasmid: Pgex6p1
symmetry	Space Group: P 21 21 21	R_factor 0.207 R_Free 0.236
crystal cell	length a length b length c angle alpha angle beta angle gamma 50.650 111.270 130.890 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	1.90 Å
ligand	BME, CI2, EDO, NAP	enzyme	Oxidoreductase E.C.1.3.1.3 BRENDA
Gene Ontology	Chain Function Process Component A, B
Primary reference	The Crystal Structure of Human Delta4-3-Ketosteroid 5beta-Reductase Defines the Functional Role of the Residues of the Catalytic Tetrad in the Steroid Double Bond Reduction Mechanism., Faucher F, Cantin L, Luu-The V, Labrie F, Breton R, Biochemistry. 2008 Jul 15. PMID:18624455

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (128 Kb) [Save to disk] Biological Unit Coordinates (3cav.pdb1.gz) 64 Kb Biological Unit Coordinates (3cav.pdb2.gz) 62 Kb LPC: Ligand-Protein Contacts for 3CAV CSU: Contacts of Structural Units for 3CAV Likely Quarternary Molecular Structure file(s) for 3CAV Structure Factors (434 Kb) Retrieve 3CAV in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 3CAV from S2C, [Save to disk] Re-refined 3cav structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 3CAV 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 3CAV

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 3CAV, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [3cav_A] [3cav_B] [3cav] SWISS-PROT database: [P51857] Domain organization of [AK1D1_HUMAN] by SWISSPFAM

Other resources with information on 3CAV

Community annotation for 3CAV at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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