1EYQ	Isomerase	date	May 08, 2000
title	Chalcone Isomerase And Naringenin
authors	J.M.Jez, M.E.Bowman, R.A.Dixon, J.P.Noel
compound		source
Molecule: Chalcone-Flavonone Isomerase 1 Chain: A, B Synonym: Chalcone Isomerase 1 Ec: 5.5.1.6 Engineered: Yes		Organism_scientific: Medicago Sativa Organism_taxid: 3879 Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_vector_type: Plasmid Expression_system_plasmid: Pet28b
symmetry	Space Group: P 65 2 2	R_factor 0.237 R_Free 0.262
crystal cell	length a length b length c angle alpha angle beta angle gamma 88.624 88.624 350.369 90.00 90.00 120.00
method	X-Ray Diffraction	resolution	1.85 Å
ligand	NAR, SO4	enzyme	Isomerase E.C.5.5.1.6 BRENDA
note	1EYQ is a representative structure
related structures	by homologous chain: 1JEP
Gene Ontology	Chain Function Process Component A, B
Primary reference	Structure and mechanism of the evolutionarily unique plant enzyme chalcone isomerase., Jez JM, Bowman ME, Dixon RA, Noel JP, Nat Struct Biol 2000 Sep;7(9):786-91. PMID:10966651

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (77 Kb) [Save to disk] Biological Unit Coordinates (1eyq.pdb1.gz) 37 Kb Biological Unit Coordinates (1eyq.pdb2.gz) 37 Kb Biological Unit Coordinates (1eyq.pdb3.gz) 143 Kb Biological Unit Coordinates (1eyq.pdb4.gz) 72 Kb Biological Unit Coordinates (1eyq.pdb5.gz) 72 Kb LPC: Ligand-Protein Contacts for 1EYQ CSU: Contacts of Structural Units for 1EYQ Likely Quarternary Molecular Structure file(s) for 1EYQ Structure Factors (609 Kb) Retrieve 1EYQ in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1EYQ from S2C, [Save to disk] Re-refined 1eyq structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1EYQ 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 1EYQ

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 1EYQ, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1eyqa_, region A [Jmol] [rasmolscript] [script source]     - Domain d1eyqb_, region B [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: [1eyq_A] [1eyq] [1eyq_B] SWISS-PROT database: [P28012] Domain organization of [CFI1_MEDSA] by SWISSPFAM

Other resources with information on 1EYQ

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

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