1A41 Isomerase date Feb 10, 1998
title Type 1-Topoisomerase Catalytic Fragment From Vaccinia Virus
authors C.Cheng, P.Kussie, N.Pavletich, S.Shuman
compound source
Molecule: Topoisomerase I
Chain: A
Fragment: Carboxy-Terminal Catalytic Domain
Ec: 5.99.1.2
Engineered: Yes
Organism_scientific: Vaccinia Virus
Organism_taxid: 10245
Expression_system: Escherichia Coli Bl21
Expression_system_taxid: 511693
Expression_system_strain: Bl21
symmetry Space Group: P 41 21 2
R_factor 0.227 R_Free 0.309
crystal
cell
length a length b length c angle alpha angle beta angle gamma
81.700 81.700 84.500 90.00 90.00 90.00
method X-Ray Diffractionresolution 2.30 Å
ligand SO4 enzyme Isomerase E.C.5.99.1.2 BRENDA
Gene
Ontology
ChainFunctionProcessComponent
A


Primary referenceConservation of structure and mechanism between eukaryotic topoisomerase I and site-specific recombinases., Cheng C, Kussie P, Pavletich N, Shuman S, Cell 1998 Mar 20;92(6):841-50. PMID:9529259
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (54 Kb) [Save to disk]
  • Biological Unit Coordinates (1a41.pdb1.gz) 50 Kb
  • LPC: Ligand-Protein Contacts for 1A41
  • CSU: Contacts of Structural Units for 1A41
  • Likely Quarternary Molecular Structure file(s) for 1A41
  • Retrieve 1A41 in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 1A41 from S2C, [Save to disk]
  • View 1A41 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 1A41
  • Ramachandran plot from PDBSum
  • Structure-derived information
  • Dipole moment, from Dipole Server at Weizmann Institute
  • 3D motif for 1A41, from MSDmotif at EBI
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d1a41__, region [Jmol] [rasmolscript] [script source]
  • Sequence-derived information
  • View one-letter amino acid or nucleotide sequence for each chain: [1a41_A] [1a41]
  • SWISS-PROT database: [P68698]
  • Domain organization of [TOP1_VACCW] by SWISSPFAM
  • Other resources with information on 1A41
  • Community annotation for 1A41 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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