1OX4	Transferase, Lyase	date	Apr 01, 2003
title	Towards Understanding The Mechanism Of The Complex Cyclizati Reaction Catalyzed By Imidazole Glycerophosphate Synthase
authors	B.N.Chaudhuri, J.L.Smith
compound		source
Molecule: Imidazole Glycerol Phosphate Synthase Hishf Chain: A Fragment: Amidotransferase And Cyclase Domains Synonym: Histidine Biosynthesis Bifunctional Amidotransfera Synthase; Imgp Synthase; Igps; Glutamine Amidotransferase: C Ec: 2.4.2.-, 4.1.3.- Engineered: Yes		Organism_scientific: Saccharomyces Cerevisiae Organism_common: Baker'S Yeast Organism_taxid: 4932 Gene: His7 Expression_system: Escherichia Coli Expression_system_taxid: 562
Molecule: Imidazole Glycerol Phosphate Synthase Hishf Chain: B Fragment: Amidotransferase And Cyclase Domains Synonym: Histidine Biosynthesis Bifunctional Amidotransfera Synthase; Imgp Synthase; Igps; Glutamine Amidotransferase: C Ec: 2.4.2.-, 4.1.3.- Engineered: Yes Other_details: Modified Cys 83		Organism_scientific: Saccharomyces Cerevisiae Organism_common: Baker'S Yeast Organism_taxid: 4932 Gene: His7 Expression_system: Escherichia Coli Expression_system_taxid: 562
symmetry	Space Group: P 21 21 21	R_factor 0.228 R_Free 0.260
crystal cell	length a length b length c angle alpha angle beta angle gamma 98.500 112.000 115.300 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	2.50 Å
ligand	CYD, NI, POP, SO4	enzyme	Transferase E.C.2.4.2 BRENDA
related structures	by homologous chain: 1OX5
Gene Ontology	Chain Function Process Component A, B histidine biosynthetic proce...
Primary reference	Toward understanding the mechanism of the complex cyclization reaction catalyzed by imidazole glycerolphosphate synthase: crystal structures of a ternary complex and the free enzyme., Chaudhuri BN, Lange SC, Myers RS, Davisson VJ, Smith JL, Biochemistry 2003 Jun 17;42(23):7003-12. PMID:12795595

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (175 Kb) [Save to disk] Biological Unit Coordinates (1ox4.pdb1.gz) 86 Kb Biological Unit Coordinates (1ox4.pdb2.gz) 88 Kb LPC: Ligand-Protein Contacts for 1OX4 CSU: Contacts of Structural Units for 1OX4 Likely Quarternary Molecular Structure file(s) for 1OX4 Structure Factors (371 Kb) Retrieve 1OX4 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1OX4 from S2C, [Save to disk] Re-refined 1ox4 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1OX4 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 1OX4

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 1OX4, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1ox4a2, region A:-3-229 [Jmol] [rasmolscript] [script source]     - Domain d1ox4a1, region A:230-550 [Jmol] [rasmolscript] [script source]     - Domain d1ox4b2, region B:-3-229 [Jmol] [rasmolscript] [script source]     - Domain d1ox4b1, region B:230-550 [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: [1ox4] [1ox4_B] [1ox4_A] SWISS-PROT database: [P33734] Domain organization of [HIS5_YEAST] by SWISSPFAM

Other resources with information on 1OX4

Community annotation for 1OX4 at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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