Precatalytic ternary complex of human DNA polymerase beta in closed conformation with gapped DNA substrate incoming (-)3TC-tp and MN2+.

Structure

x-ray diffraction · 4 distinct chains · 50% helix, 13% strand (DSSP).

Ligands and binding sites

• 1RZ · Lamivudine Triphosphate · ligand · chains A, P, T
• MN · Manganese (II) ion · metal · 6 copies · chains A, P
• NA · Sodium ion · metal · 5 copies · chains A, D, P
• CL · Chloride ion · ion · 2 copies · chains A
• ACT · Acetate ion · additive · 6 copies · chains A, D, T, P

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

Pockets

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

Interfaces

5 interfaces between chains.

• A–T · 694 Ų buried · 13 hydrogen bonds · protein-nucleic
• P–T · 463 Ų buried · 43 hydrogen bonds · nucleic-nucleic
• A–D · 381 Ų buried · 8 hydrogen bonds · protein-nucleic
• A–P · 357 Ų buried · 12 hydrogen bonds · protein-nucleic
• D–T · 194 Ų buried · 18 hydrogen bonds · nucleic-nucleic

Compared structures

• 5TB8 · Precatalytic ternary complex of Human DNA Polymerase Beta in closed conformation With… · the same entry in another collection · chain A against A, TM-score 1.00
• P06746 · AlphaFold monomer V2.0 prediction for DNA polymerase beta (P06746) · a predicted model of the same protein · chain A against A, TM-score 0.91

Analyse

• Open in the research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides and crosslinks on the 3D structure
• Every structure of UniProt P06746
• Elsewhere: RCSB PDB 5TB8 · PDBe 5TB8 · UniProt P06746