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Echinomycin (ACGTACGT)2 complex

Analyse Echinomycin (ACGTACGT)2 complex in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.

PDB
1XVN
Type
protein + DNA
Length
16 residues
Chains
2
Method
x-ray diffraction
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
5'-D(*AP*CP*GP*TP*AP*CP*GP*T)-3'; Echinomycin
Ligands
QUI, MG

Structure

x-ray diffraction · 2 distinct chains · 0% helix, 0% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
A5'-D(*AP*CP*GP*TP*AP*CP*GP*T)-3'dna8——
BEchinomycinprotein80% helix, 0% strand—

Ligands and binding sites

  • QUI · 2-carboxyquinoxaline · ligand · 2 copies · chains A, B
  • MG · Magnesium 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 · 222 Ų buried · 3 hydrogen bonds · protein-nucleic

Modifications

Observed in the structure: 4 modified, 2 covalent, 2 d-amino (covalent ligand, D-amino acid, methylation, nonstandard).

Compared structures

  • 1XVN · echinomycin (ACGTACGT)2 complex · the same entry in another collection · chain A against A, TM-score 1.00

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