1A36 Isomerase Dna date Jan 29, 1998
title Topoisomerase Idna Complex
authors L.Stewart, M.R.Redinbo, X.Qiu, J.J.Champoux, W.G.J.Hol
compound source
Molecule: Dna (5'- D(Apapapapapgpapcptptpapgpapapapapa Ptptptptpt)- 3');
Chain: B
Engineered: Yes
Synthetic: Yes

Molecule: Dna (5'- D(Apapapapaptptptptptpcptpapapgptpc Ptptptptpt)- 3');
Chain: C
Engineered: Yes

Synthetic: Yes

Molecule: Topoisomerase I
Chain: A
Fragment: Core Domain And C-Terminal Domain
Ec: 5.99.1.2
Engineered: Yes
Mutation: Yes

Organism_scientific: Homo Sapiens
Organism_common: Human
Organism_taxid: 9606
Cellular_location: Nucleus
Expression_system: Spodoptera Frugiperda
Expression_system_common: Fall Armyworm
Expression_system_taxid: 7108
Expression_system_vector: Baculovirus
symmetry Space Group: P 1 21 1
R_factor 0.224 R_Free 0.312
crystal
cell
length a length b length c angle alpha angle beta angle gamma
56.500 118.400 71.500 90.00 101.20 90.00
method X-Ray Diffractionresolution 2.80 Å
ligand
enzyme Isomerase E.C.5.99.1.2 BRENDA
note 1A36 (Molecule of the Month:pdb73)
related structures by homologous chain: 1RR8, 1SC7
Gene
Ontology
ChainFunctionProcessComponent
A


Primary referenceA model for the mechanism of human topoisomerase I., Stewart L, Redinbo MR, Qiu X, Hol WG, Champoux JJ, Science 1998 Mar 6;279(5356):1534-41. PMID:9488652
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (112 Kb) [Save to disk]
  • Biological Unit Coordinates (1a36.pdb1.gz) 107 Kb
  • CSU: Contacts of Structural Units for 1A36
  • Likely Quarternary Molecular Structure file(s) for 1A36
  • Retrieve 1A36 in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 1A36 from S2C, [Save to disk]
  • View 1A36 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 1A36
  • Cartoon representation from PDB Cartoon
  • Ramachandran plot from PDBSum
  • Structure-derived information
  • Dipole moment, from Dipole Server at Weizmann Institute
  • Crystal Contacts, from CryCo at Weizmann Institute
  • 3D motif for 1A36, from MSDmotif at EBI
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d1a36a3, region A:215-430 [Jmol] [rasmolscript] [script source]
        - Domain d1a36a2, region A:431-633,A:713-765 [Jmol] [rasmolscript] [script source]
        - Domain d1a36a1, region A:641-712 [Jmol] [rasmolscript] [script source]
  • Fold representative 1a36 from FSSP and Dali (Families of Structurally Similar Proteins)
  • 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: [1a36_C] [1a36] [1a36_A] [1a36_B]
  • SWISS-PROT database: [P11387]
  • Domain organization of [TOP1_HUMAN] by SWISSPFAM
  • Domain found in 1A36: [TOPEUc ] by SMART
  • Other resources with information on 1A36
  • Community annotation for 1A36 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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