1K8P

Structure of the Human G-quadruplex reveals a novel topology

Structural Biology Knowledgebase: 1K8P SBKB.org


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Free: 0.280
  • R-Value Work: 0.189

Literature

Macromolecules
Sequence Display for 1K8P

Classification: DNA

Total Structure Weight: 7907.65

Macromolecule Entities
Molecule Chains Length Organism Details
5'-D(*(BRU)P*AP*GP*GP*GP*(BRU)P*TP*AP*GP*GP*GP*T)-3' A, B 12 synthetic

Small Molecules
Ligands 2 Unique
ID Chains Name / Formula / InChI Key 2D Diagram 3D Interactions
K
Query on K

A POTASSIUM ION
K
NPYPAHLBTDXSSS-UHFFFAOYSA-N
Ligand Explorer NGL
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)
NA
Query on NA

A SODIUM ION
Na
FKNQFGJONOIPTF-UHFFFAOYSA-N
Ligand Explorer NGL
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)
Modified Residues 1 Unique
ID Chains Type Formula 2D Diagram Parent
BRU
Query on BRU
A, B DNA LINKING C9 H12 Br N2 O8 P DU

Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Free: 0.280
  • R-Value Work: 0.189
  • Space Group: P 31 2 1

Unit Cell:

Length (Å) Angle (°)
a = 56.61 α = 90.00
b = 56.61 β = 90.00
c = 40.55 γ = 120.00

Structure Validation

View Full Validation Report



Entry History

Deposition Data

  • Deposited Date: 2001-10-25
  • Released Date: 2002-05-31
  • Deposition author(s): Parkinson, G.N., Lee, M.P.H., Neidle, S.

Revision History

  • 2011-07-13
    Type: Version format compliance | Details: compliance with PDB Exchange Dictionary V4