1CQ8 Transferase date Aug 06, 1999
title Aspartate Aminotransferase (E.C. Complexed With C6- 5p-Phosphate
authors J.Ishijima, T.Nakai, S.Kawaguchi, K.Hirotsu, S.Kuramitsu
compound source
Molecule: Aspartate Aminotransferase (
Chain: A
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: Puc19
symmetry Space Group: C 2 2 21
R_factor 0.213 R_Free 0.270
length a length b length c angle alpha angle beta angle gamma
157.720 85.570 78.790 90.00 90.00 90.00
method X-Ray Diffractionresolution 2.40 Å
ligand PY6 enzyme Transferase E.C. BRENDA
related structures by homologous chain: 1AAW, 1ASC

Primary referenceFree energy requirement for domain movement of an enzyme., Ishijima J, Nakai T, Kawaguchi S, Hirotsu K, Kuramitsu S, J Biol Chem 2000 Jun 23;275(25):18939-45. PMID:10858450
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (68 Kb) [Save to disk]
  • Biological Unit Coordinates (1cq8.pdb1.gz) 126 Kb
  • LPC: Ligand-Protein Contacts for 1CQ8
  • CSU: Contacts of Structural Units for 1CQ8
  • Likely Quarternary Molecular Structure file(s) for 1CQ8
  • Retrieve 1CQ8 in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 1CQ8 from S2C, [Save to disk]
  • View 1CQ8 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 1CQ8
  • Ramachandran plot from PDBSum
  • Structure-derived information
  • Dipole moment, from Dipole Server at Weizmann Institute
  • 3D motif for 1CQ8, from MSDmotif at EBI
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d1cq8a_, region A [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: [1cq8] [1cq8_A]
  • SWISS-PROT database: [P00509]
  • Domain organization of [AAT_ECOLI] by SWISSPFAM
  • Other resources with information on 1CQ8
  • Community annotation for 1CQ8 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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