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Polymerase eta-catalyzed insertion of correct G opposite template cytarabine (arac) residue

Analyse Polymerase eta-catalyzed insertion of correct G opposite template cytarabine… in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.

PDB
6PZ3
Type
protein + DNA
Length
448 residues
Chains
3
Method
x-ray diffraction
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
DNA polymerase eta; DNA primer strand; DNA template containing cytarabine (arac) residue
EC
2.7.7.7
UniProt
Q9Y253
Ligands
XG4, MG
Pockets
6 · best druggability 0.80

Structure

x-ray diffraction · 3 distinct chains · 44% helix, 21% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
ADNA polymerase eta (EC 2.7.7.7)protein42944% helix, 21% strandQ9Y253
PDNA primer stranddna8——
TDNA template containing cytarabine (arac) residuedna11——

Ligands and binding sites

  • XG4 · 2'-deoxy-5'-O-[(R)-hydroxy{[(R)-hydroxy(phosphonooxy)phosphoryl]amino}phosphoryl]guanosine · ligand · chains A, P, T
  • 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

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

PocketVolume (ų)DruggabilityBuriednessLining residuesInside
18580.800.8362XG4, MG
25910.730.8148empty
32090.620.8225empty
4970.430.7921empty
51020.390.7618empty

Interfaces

3 interfaces between chains.

  • A–T · 1002 Ų buried · 22 hydrogen bonds · protein-nucleic
  • A–P · 561 Ų buried · 14 hydrogen bonds · protein-nucleic
  • P–T · 373 Ų buried · 33 hydrogen bonds · nucleic-nucleic

Modifications

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

Compared structures

  • 6PZ3 · Polymerase Eta-catalyzed insertion of correct G opposite template cytarabine (AraC)… · the same entry in another collection · chain A against A, TM-score 1.00

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