1LPQ Isomerase Dna date May 08, 2002
title Human Dna Topoisomerase I (70 Kda) In Non-Covalent Complex With A 22 Base Pair Dna Duplex Containing An 8-Oxog Lesion
authors D.T.Lesher, Y.Pommier, L.Stewart, M.R.Redinbo
compound source
Molecule: 5'-D(Apapapapapgpapcptptp(8og) Pgpapapapapaptptptptpt)-3';
Chain: B
Engineered: Yes
Synthetic: Yes

Molecule: 5'- D(Apapapapaptptptptptpcpcpapapgptpcptptp Tptpt)-3';
Chain: C
Engineered: Yes

Synthetic: Yes

Molecule: Dna Topoisomerase I
Chain: A
Engineered: Yes
Mutation: Yes

Organism_scientific: Homo Sapiens
Organism_common: Human
Organism_taxid: 9606
Expression_system: Spodoptera Frugiperda
Expression_system_common: Fall Armyworm
Expression_system_taxid: 7108
Expression_system_vector_type: Baculovirus
symmetry Space Group: P 1 21 1
R_factor 0.256 R_Free 0.298
length a length b length c angle alpha angle beta angle gamma
57.200 122.500 72.000 90.00 97.40 90.00
method X-Ray Diffractionresolution 3.14 Å
ligand 8OG enzyme Isomerase E.C. BRENDA

Primary reference8-Oxoguanine rearranges the active site of human topoisomerase I., Lesher DT, Pommier Y, Stewart L, Redinbo MR, Proc Natl Acad Sci U S A 2002 Sep 17;99(19):12102-7. PMID:12209008
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (114 Kb) [Save to disk]
  • Biological Unit Coordinates (1lpq.pdb1.gz) 109 Kb
  • LPC: Ligand-Protein Contacts for 1LPQ
  • CSU: Contacts of Structural Units for 1LPQ
  • Likely Quarternary Molecular Structure file(s) for 1LPQ
  • Retrieve 1LPQ in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 1LPQ from S2C, [Save to disk]
  • View 1LPQ 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 1LPQ
  • 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 1LPQ, from MSDmotif at EBI
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d1lpqa3, region A:202-430 [Jmol] [rasmolscript] [script source]
        - Domain d1lpqa2, region A:431-633,A:713-765 [Jmol] [rasmolscript] [script source]
        - Domain d1lpqa1, region A:641-712 [Jmol] [rasmolscript] [script source]
  • Fold representative 1lpq from FSSP and Dali (Families of Structurally Similar Proteins)
  • Sequence-derived information
  • View one-letter amino acid or nucleotide sequence for each chain: [1lpq_C] [1lpq] [1lpq_B] [1lpq_A]
  • SWISS-PROT database: [P11387]
  • Domain organization of [TOP1_HUMAN] by SWISSPFAM
  • Domain found in 1LPQ: [TOPEUc ] by SMART
  • Other resources with information on 1LPQ
  • Community annotation for 1LPQ 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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