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T:O6-methyl-guanine in the polymerase-2 basepair position

Analyse T:O6-methyl-guanine in the polymerase-2 basepair position in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.

PDB
2HHV
Type
protein + DNA
Length
607 residues
Chains
3
Method
x-ray diffraction
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
5'-D(*GP*CP*GP*AP*TP*CP*AP*GP*CP*TP*TP*G)-3'; 5'-D(*GP*TP*AP*CP*(6OG)P*AP*GP*CP*TP*GP*AP*T…
EC
2.7.7.7
UniProt
Q5KWC1
Ligands
GLC, FRU, MG, SO4
Pockets
9 · best druggability 0.71

Structure

x-ray diffraction · 3 distinct chains · 56% helix, 13% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
B5'-D(*GP*CP*GP*AP*TP*CP*AP*GP*CP*TP*TP*G)-3'dna12——
C5'-D(*GP*TP*AP*CP*(6OG)P*AP*GP*CP*TP*GP*AP*TP*CP*GP*CP*A)- 3'dna15——
ADNA polymerase I (EC 2.7.7.7)protein58056% helix, 13% strandQ5KWC1

Ligands and binding sites

  • GLC · alpha-D-glucopyranose · sugar · 2 copies · chains A
  • FRU · beta-D-fructofuranose · sugar · 2 copies · chains A
  • MG · Magnesium ion · metal · chains A
  • SO4 · Sulfate ion · ion · 5 copies · chains A

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

Pockets

9 pockets found on a 1 Å grid, 4 with a druggability of 0.5 or more.

PocketVolume (ų)DruggabilityBuriednessLining residuesInside
18610.710.7672SO4, MG
21470.700.9021empty
33860.690.8244GLC, FRU
41220.580.8517empty
51240.480.7926empty

Interfaces

3 interfaces between chains.

  • C–A · 1232 Ų buried · 19 hydrogen bonds · protein-nucleic
  • B–A · 887 Ų buried · 20 hydrogen bonds · protein-nucleic
  • B–C · 590 Ų buried · 36 hydrogen bonds · nucleic-nucleic

Modifications

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

Compared structures

  • 2HHV · T:O6-methyl-guanine in the polymerase-2 basepair position · the same entry in another collection · chain B against B, TM-score 1.00

Analyse

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