1EQR Ligase date Apr 06, 2000
title Crystal Structure Of Free Aspartyl-Trna Synthetase From Esch Coli
authors B.Rees, G.Webster, M.Delarue, M.Boeglin, D.Moras
compound source
Molecule: Aspartyl-Trna Synthetase
Chain: A, B, C
Synonym: Asprs
Ec: 6.1.1.12
Engineered: Yes
Organism_scientific: Escherichia Coli
Organism_taxid: 562
Expression_system: Escherichia Coli
Expression_system_taxid: 562
Expression_system_vector_type: Plasmid
Expression_system_plasmid: Pbluescript-Asps
symmetry Space Group: C 1 2 1
R_factor 0.198 R_Free 0.269
crystal
cell
length a length b length c angle alpha angle beta angle gamma
117.749 161.958 131.599 90.00 110.36 90.00
method X-Ray Diffractionresolution 2.70 Å
ligand MG enzyme Ligase E.C.6.1.1.12 BRENDA
related structures by homologous chain: 1IL2
Gene
Ontology
ChainFunctionProcessComponent
A, C, B


Primary referenceAspartyl tRNA-synthetase from Escherichia coli: flexibility and adaptability to the substrates., Rees B, Webster G, Delarue M, Boeglin M, Moras D, J Mol Biol 2000 Jun 23;299(5):1157-64. PMID:10873442
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (289 Kb) [Save to disk]
  • Biological Unit Coordinates (1eqr.pdb1.gz) 378 Kb
  • LPC: Ligand-Protein Contacts for 1EQR
  • CSU: Contacts of Structural Units for 1EQR
  • Likely Quarternary Molecular Structure file(s) for 1EQR
  • Structure Factors (513 Kb)
  • Retrieve 1EQR in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 1EQR from S2C, [Save to disk]
  • Re-refined 1eqr structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 1EQR 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 1EQR
  • 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 1EQR, from MSDmotif at EBI
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d1eqra1, region A:1-106 [Jmol] [rasmolscript] [script source]
        - Domain d1eqra3, region A:107-287,A:421-590 [Jmol] [rasmolscript] [script source]
        - Domain d1eqra2, region A:288-420 [Jmol] [rasmolscript] [script source]
        - Domain d1eqrb1, region B:1-106 [Jmol] [rasmolscript] [script source]
        - Domain d1eqrb3, region B:107-287,B:421-590 [Jmol] [rasmolscript] [script source]
        - Domain d1eqrb2, region B:288-420 [Jmol] [rasmolscript] [script source]
        - Domain d1eqrc1, region C:1-106 [Jmol] [rasmolscript] [script source]
        - Domain d1eqrc3, region C:107-287,C:421-590 [Jmol] [rasmolscript] [script source]
        - Domain d1eqrc2, region C:288-420 [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: [1eqr] [1eqr_A] [1eqr_B] [1eqr_C]
  • SWISS-PROT database: [P21889]
  • Domain organization of [SYD_ECOLI] by SWISSPFAM
  • Other resources with information on 1EQR
  • Community annotation for 1EQR at PDBWiki (http://pdbwiki.org)
  • MMDB (Entrez's Structure Database)
  • Movements, Movies and Images
  • Domain movements in 1EQR from the Database of Macromolecular Movements.
  • Images from IMB Jena Image Library of Biological Macromolecules.

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