1K4S

HUMAN DNA TOPOISOMERASE I IN COVALENT COMPLEX WITH A 22 BASE PAIR DNA DUPLEX


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.2 Å
  • R-Value Free: 0.222
  • R-Value Work: 0.217

Literature

Macromolecules
Sequence Display for 1K4S

Classification: ISOMERASE / DNA

Total Structure Weight: 85393.02


Macromolecule Entities
Molecule Chains Length Organism Details
DNA topoisomerase I A 592 Homo sapiens EC#: 5.99.1.2 IUBMB
Fragment: Core Domain and C-Terminal Domain, Residues 174-765
Mutation: Y723X
Gene Name(s): TOP1 Gene View
Metabolic Pathways
Maps:       
Reactions:
ESCHER  BiGG
Macromolecule Entities
Molecule Chains Length Organism Details
5'-D(*AP*AP*AP*AP*AP*GP*AP*CP*(5IU)P*(5IU))-3' B 10 synthetic
5'-D(*(SPT)P*GP*AP*AP*AP*AP*AP*(5IU)P*(5IU)P*(5IU)P*(5IU)P*T)-3' C 12 synthetic
5'-D(*AP*AP*AP*AP*AP*TP*(IDO)UP*(IDO)UP*(IDO)UP*(IDO)UP*CP*AP*AP*AP*GP*(IDO)UP*CP*(IDO)UP*(IDO)UP*(IDO)UP*(IDO)UP*T)-3' D 22 synthetic

Small Molecules
Modified Residues 3 Unique
ID Chains Type Formula 2D Diagram Parent
5IU
Query on 5IU
B, C, D DNA LINKING C9 H12 I N2 O8 P DU
SPT
Query on SPT
C DNA LINKING C10 H15 N2 O7 P S DT
PTR
Query on PTR
A L-PEPTIDE LINKING C9 H12 N O6 P TYR

Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.2 Å
  • R-Value Free: 0.222
  • R-Value Work: 0.217
  • Space Group: P 32

Unit Cell:

Length (Å) Angle (°)
a = 73.24 α = 90.00
b = 73.24 β = 90.00
c = 186.63 γ = 120.00

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History

Deposition Data

  • Deposited Date: 2001-10-08
  • Released Date: 2002-12-04
  • Deposition author(s): Staker, B.L., Hjerrild, K., Feese, M.D., Behnke, C.A., Burgin Jr., A.B., Stewart, L.J.

Revision History

  • Version 1_0: 2002-12-04

    Type: Initial release

  • Version 1_1: 2008-04-27

    Type: Version format compliance

  • Version 1_2: 2011-07-13

    Type: Version format compliance