1K4S HUMAN DNA TOPOISOMERASE I IN COVALENT COMPLEX WITH A 22 BASE PAIR DNA DUPLEX date
authors Staker, B.L., Hjerrild, K., Feese, M.D., Behnke, C.A., Burgin, A.B., Stewart, L.J.
compound source
symmetry
R_factor
R_Free 0.2223
crystal
cell
length a length b length c angle alpha angle beta angle gamma
method X-Ray Diffractionresolution 3.20
ligand 5IU, PTR, SPT enzyme
Gene
Ontology
ChainFunctionProcessComponent
A


Primary referenceThe mechanism of topoisomerase I poisoning by a camptothecin analog., Staker BL, Hjerrild K, Feese MD, Behnke CA, Burgin AB Jr, Stewart L, Proc Natl Acad Sci U S A 2002 Nov 26;99(24):15387-92. Epub 2002 Nov 8. PMID:12426403
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (107 Kb) [Save to disk]
  • Biological Unit Coordinates (1k4s.pdb1.gz) 98 Kb
  • LPC: Ligand-Protein Contacts for 1K4S
  • CSU: Contacts of Structural Units for 1K4S
  • Likely Quarternary Molecular Structure file(s) for 1K4S
  • Retrieve 1K4S in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 1K4S from S2C, [Save to disk]
    • View 1K4S 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 1K4S
  • 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 1K4S, from MSDmotif at EBI
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d1k4sa2, region A:201-430 [Jmol] [rasmolscript] [script source]
        - Domain d1k4sa1, region A:431-632,A:708-765 [Jmol] [rasmolscript] [script source]
  • Fold representative 1k4s from FSSP and Dali (Families of Structurally Similar Proteins)
    • Sequence-derived information
  • View one-letter amino acid or nucleotide sequence for each chain: [1k4s_D] [1k4s_A] [1k4s_B] [1k4s_C] [1k4s]
  • SWISS-PROT database: [P11387]
  • Domain organization of [TOP1_HUMAN] by SWISSPFAM
  • Domain found in 1K4S: [TOPEUc ] by SMART
    • Other resources with information on 1K4S
  • Community annotation for 1K4S 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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