3IVS	Transferase	date	Sep 01, 2009
title	Homocitrate Synthase Lys4
authors	S.L.Bulfer, E.M.Scott, J.F.Couture, L.Pillus, R.C.Trievel
compound		source
Molecule: Homocitrate Synthase, Mitochondrial Chain: A, B Fragment: Homocitrate Synthase Lys4 Ec: 2.3.3.14 Engineered: Yes		Organism_scientific: Schizosaccharomyces Pombe Organism_common: Fission Yeast Organism_taxid: 4896 Gene: Lys4, Spbc1105.02c Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Bl-21de3 Expression_system_vector_type: Plasmid Expression_system_plasmid: Phis2
symmetry	Space Group: P 62	R_factor 0.191 R_Free 0.220
crystal cell	length a length b length c angle alpha angle beta angle gamma 135.995 135.995 122.124 90.00 90.00 120.00
method	X-Ray Diffraction	resolution	2.24 Å
ligand	CO, MG, MSE	enzyme	Transferase E.C.2.3.3.14 BRENDA
Gene Ontology	Chain Function Process Component A, B
Primary reference	Crystal structure and functional analysis of homocitrate synthase, an essential enzyme in lysine biosynthesis., Bulfer SL, Scott EM, Couture JF, Pillus L, Trievel RC, J Biol Chem. 2009 Dec 18;284(51):35769-80. Epub . PMID:19776021

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (127 Kb) [Save to disk] Biological Unit Coordinates (3ivs.pdb1.gz) 119 Kb LPC: Ligand-Protein Contacts for 3IVS CSU: Contacts of Structural Units for 3IVS Structure Factors (900 Kb) Retrieve 3IVS in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 3IVS from S2C, [Save to disk] Re-refined 3ivs structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 3IVS 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 3IVS

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 3IVS, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [3ivs] [3ivs_B] [3ivs_A] SWISS-PROT database: [Q9Y823] Domain organization of [HOSM_SCHPO] by SWISSPFAM

Other resources with information on 3IVS

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

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