3IEK Hydrolase date Jul 22, 2009
title Crystal Structure Of Native Ttha0252 From Thermus Thermophil
authors H.Ishikawa, N.Nakagawa, S.Kuramitsu, S.Yokoyama, R.Masui
compound source
Molecule: Ribonuclease Ttha0252
Chain: A, B, C, D
Ec: 3.1.-.-
Engineered: Yes
Organism_scientific: Thermus Thermophilus
Organism_taxid: 300852
Strain: Hb8
Gene: Ttha0252
Expression_system: Escherichia Coli
Expression_system_taxid: 469008
Expression_system_strain: Bl21(De3)
Expression_system_vector_type: Plasmid
Expression_system_plasmid: Pet11a
symmetry Space Group: C 1 2 1
R_factor 0.218 R_Free 0.250
crystal
cell
length a length b length c angle alpha angle beta angle gamma
145.218 145.701 119.652 90.00 110.52 90.00
method X-Ray Diffractionresolution 2.05 Å
ligand FLC, SO4, ZN enzyme Hydrolase E.C.3.1 BRENDA
Gene
Ontology
ChainFunctionProcessComponent
A, D, C, B
  • nuclease activity
  • endonuclease activity


  • Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (294 Kb) [Save to disk]
  • Biological Unit Coordinates (3iek.pdb1.gz) 78 Kb
  • Biological Unit Coordinates (3iek.pdb2.gz) 77 Kb
  • Biological Unit Coordinates (3iek.pdb3.gz) 75 Kb
  • Biological Unit Coordinates (3iek.pdb4.gz) 74 Kb
  • LPC: Ligand-Protein Contacts for 3IEK
  • CSU: Contacts of Structural Units for 3IEK
  • Structure Factors (1759 Kb)
  • Retrieve 3IEK in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 3IEK from S2C, [Save to disk]
  • Re-refined 3iek structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 3IEK 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 3IEK
  • 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 3IEK, from MSDmotif at EBI
  • Sequence-derived information
  • View one-letter amino acid or nucleotide sequence for each chain: [3iek] [3iek_B] [3iek_D] [3iek_C] [3iek_A]
  • SWISS-PROT database:
  • Domain organization of by SWISSPFAM
  • Domains found in 3IEK: [Beta-Casp] [Lactamase_B ] by SMART
  • Other resources with information on 3IEK
  • Community annotation for 3IEK 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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