3FZW	Isomerase	date	Jan 26, 2009
title	Crystal Structure Of Ketosteroid Isomerase D40n-D103n From P Putida (Pksi) With Bound Equilenin
authors	J.M.M.Caaveiro, D.Ringe, G.A.Petsko
compound		source
Molecule: Steroid Delta-Isomerase Chain: A, B Synonym: Delta(5)-3-Ketosteroid Isomerase Ec: 5.3.3.1 Engineered: Yes Mutation: Yes		Organism_scientific: Pseudomonas Putida Organism_taxid: 303 Gene: Ksi Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Bl21 Expression_system_vector_type: Plasmid
symmetry	Space Group: C 1 2 1	R_factor 0.149 R_Free 0.183
crystal cell	length a length b length c angle alpha angle beta angle gamma 86.876 71.196 50.452 90.00 89.92 90.00
method	X-Ray Diffraction	resolution	1.32 Å
ligand	EQU, GOL, IPA	enzyme	Isomerase E.C.5.3.3.1 BRENDA
note	3FZW is a representative structure
Gene Ontology	Chain Function Process Component A, B
Primary reference	Hydrogen bond coupling in the ketosteroid isomerase active site., Sigala PA, Caaveiro JM, Ringe D, Petsko GA, Herschlag D, Biochemistry. 2009 Jul 28;48(29):6932-9. PMID:19469568

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (100 Kb) [Save to disk] Biological Unit Coordinates (3fzw.pdb1.gz) 95 Kb LPC: Ligand-Protein Contacts for 3FZW CSU: Contacts of Structural Units for 3FZW Likely Quarternary Molecular Structure file(s) for 3FZW Structure Factors (523 Kb) Retrieve 3FZW in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 3FZW from S2C, [Save to disk] Re-refined 3fzw structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 3FZW 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 3FZW

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 3FZW, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [3fzw] [3fzw_A] [3fzw_B] SWISS-PROT database: [P07445] Domain organization of [SDIS_PSEPU] by SWISSPFAM

Other resources with information on 3FZW

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

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