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Human DNA polymerase eta extension complex with cda at the -2 position

Analyse Human DNA polymerase eta extension complex with cda at the -2 position in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.

PDB
6M7P
Type
protein + DNA
Length
447 residues
Chains
3
Method
x-ray diffraction
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
DNA polymerase eta; DNA (5'-D(*CP*AP*TP*TP*CP*(02I)P*CP*AP*CP*AP*CP*T)-3'); DNA…
EC
2.7.7.7
UniProt
Q9Y253
Ligands
DZ4, MG
Pockets
5 · best druggability 0.80

Structure

x-ray diffraction · 3 distinct chains · 44% helix, 22% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
ADNA polymerase eta (EC 2.7.7.7)protein42844% helix, 22% strandQ9Y253
TDNA (5'-D(*CP*AP*TP*TP*CP*(02I)P*CP*AP*CP*AP*CP*T)-3')dna11——
PDNA (5'-D(*AP*GP*TP*GP*TP*GP*TP*G)-3')dna8——

Ligands and binding sites

  • DZ4 · 2'-deoxy-5'-O-[(R)-hydroxy{[(r)-hydroxy(phosphonooxy) phosphoryl]amino}phosphoryl]adenosine · ligand · chains A, T, P
  • MG · Magnesium ion · metal · 2 copies · chains A, P
  • GOL · Glycerol · additive · chains A

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

Pockets

5 pockets found on a 1 Å grid, 3 with a druggability of 0.5 or more.

PocketVolume (ų)DruggabilityBuriednessLining residuesInside
19890.800.8165DZ4, MG
25870.740.8253empty
32000.680.8621empty
4890.490.8322empty
5900.370.7616empty

Interfaces

3 interfaces between chains.

  • A–T · 985 Ų buried · 20 hydrogen bonds · protein-nucleic
  • A–P · 587 Ų buried · 12 hydrogen bonds · protein-nucleic
  • T–P · 379 Ų buried · 27 hydrogen bonds · nucleic-nucleic

Modifications

Observed in the structure: 1 modified (nucleotide modification).

Compared structures

  • 6M7P · Human DNA polymerase eta extension complex with cdA at the -2 position · the same entry in another collection · chain A against A, TM-score 1.00

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