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Structure of the human G-quadruplex reveals a novel topology

Analyse Structure of the human G-quadruplex reveals a novel topology in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.

PDB
1K8P
Type
DNA
Length
24 nucleotides
Chains
2
Method
x-ray diffraction
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
5'-D(*(BRU)P*AP*GP*GP*GP*(BRU)P*TP*AP*GP*GP*GP*T)-3'
Ligands
K, NA

Structure

x-ray diffraction · 1 distinct chain.

ChainMoleculeTypeResiduesSecondary structureUniProt
A, B5'-D(*(BRU)P*AP*GP*GP*GP*(BRU)P*TP*AP*GP*GP*GP*T)-3'dna12——

Ligands and binding sites

  • K · Potassium ion · metal · 2 copies · chains A, B
  • NA · Sodium ion · metal · chains A

Binding sites are the residues within 4.5 Å of a ligand's heavy atoms.

Interfaces

1 interface between chains.

  • A–B · 416 Ų buried · 21 hydrogen bonds · nucleic-nucleic

Modifications

Observed in the structure: 4 modified (nucleotide modification).

Compared structures

  • 1K8P · Structure of the Human G-quadruplex reveals a novel topology · the same entry in another collection · chain A against A, TM-score 1.00

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