3A9I Transferase Transferase Inhibitor date Oct 28, 2009
title Crystal Structure Of Homocitrate Synthase From Thermus Therm Complexed With Lys
authors T.Okada, T.Tomita, T.Kuzuyama, M.Nishiyama
compound source
Molecule: Homocitrate Synthase
Chain: A
Engineered: Yes
Organism_scientific: Thermus Thermophilus
Organism_taxid: 262724
Strain: Hb27
Expression_system: Escherichia Coli
Expression_system_taxid: 562
Expression_system_strain: Bl21(De3) Ril-Codonplus
Expression_system_vector_type: Plasmid
Expression_system_plasmid: Pet-26b(+)
symmetry Space Group: C 2 2 21
R_factor 0.171 R_Free 0.213
length a length b length c angle alpha angle beta angle gamma
80.281 96.025 77.082 90.00 90.00 90.00
method X-Ray Diffractionresolution 1.80 Å
ligand CO, LYS enzyme Transferase E.C. BRENDA

Primary referenceMechanism of substrate recognition and insight into feedback inhibition of homocitrate synthase from thermus thermophilus., Okada T, Tomita T, Wulandari AP, Kuzuyama T, Nishiyama M, J Biol Chem. 2009 Dec 7. PMID:19996101
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (64 Kb) [Save to disk]
  • Biological Unit Coordinates (3a9i.pdb1.gz) 116 Kb
  • LPC: Ligand-Protein Contacts for 3A9I
  • CSU: Contacts of Structural Units for 3A9I
  • Structure Factors (215 Kb)
  • Retrieve 3A9I in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 3A9I from S2C, [Save to disk]
  • Re-refined 3a9i structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 3A9I 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 3A9I
  • Cartoon representation from PDB Cartoon
  • 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
  • Crystal Contacts, from CryCo at Weizmann Institute
  • 3D motif for 3A9I, from MSDmotif at EBI
  • Fold representative 3a9i from FSSP and Dali (Families of Structurally Similar Proteins)
  • Sequence-derived information
  • View one-letter amino acid or nucleotide sequence for each chain: [3a9i] [3a9i_A]
  • SWISS-PROT database: [O87198]
  • Domain organization of [HOSC_THET2] by SWISSPFAM
  • Other resources with information on 3A9I
  • Community annotation for 3A9I at PDBWiki (http://pdbwiki.org)
  • MMDB (Entrez's Structure Database)
  • Movements, Movies and Images
  • Images from IMB Jena Image Library of Biological Macromolecules.

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