SMTL ID : 7n2m.1

Crystal structure of DNA polymerase alpha catalytic core in complex with dCTP and template/primer having T-C mismatch at the post-insertion site

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 2.90 Å

Oligo State

monomer

Ligands

1 x DCP: 2'-DEOXYCYTIDINE-5'-TRIPHOSPHATE(Non-covalent)

DCP.1: 18 residues within 4Å: Chain A: D.525, F.526, N.527, S.528, L.529, Y.530, P.531, R.587, K.615, N.619, Y.622, T.668, D.669 Chain B: C.11 Chain C: G.4, T.5 Ligands: MG.2, ZN.3 10 PLIP interactions: 10 interactions with chain A Hydrophobic interactions: A:Y.530 Hydrogen bonds: A:F.526, A:S.528, A:L.529, A:Y.530, A:N.619 Salt bridges: A:R.587, A:K.615, A:K.615, A:K.615

1 x MG: MAGNESIUM ION(Non-covalent)

MG.2: 5 residues within 4Å: Chain A: D.525, F.526, D.669 Ligands: DCP.1, ZN.3 3 PLIP interactions: 3 interactions with chain A Metal complexes: A:D.525, A:F.526, A:D.669

4 x ZN: ZINC ION(Non-covalent)(Non-functional Binders)

ZN.3: 4 residues within 4Å: Chain A: D.525, D.669 Ligands: DCP.1, MG.2 2 PLIP interactions: 2 interactions with chain A Metal complexes: A:D.525, A:D.669 ZN.4: 2 residues within 4Å: Chain A: H.7, E.165 2 PLIP interactions: 2 interactions with chain A Metal complexes: A:H.7, A:E.165 ZN.8: 1 residues within 4Å: Chain B: G.6 No protein-ligand interaction detected (PLIP) ZN.9: 1 residues within 4Å: Chain C: G.13 No protein-ligand interaction detected (PLIP)

1 x K: POTASSIUM ION(Non-covalent)

K.5: 4 residues within 4Å: Chain A: C.889, E.890, I.892, I.895 2 PLIP interactions: 2 interactions with chain A Metal complexes: A:I.892, A:I.895

1 x 1PE: PENTAETHYLENE GLYCOL(Non-functional Binders)

1PE.6: 6 residues within 4Å: Chain A: Q.4, V.5, F.6, P.169, A.181, E.182 No protein-ligand interaction detected (PLIP)

1 x SO4: SULFATE ION(Non-functional Binders)

SO4.7: 4 residues within 4Å: Chain A: H.302, H.372, L.373, R.832 7 PLIP interactions: 7 interactions with chain A Hydrogen bonds: A:L.373 Water bridges: A:H.302, A:H.302, A:E.359, A:H.372 Salt bridges: A:H.302, A:R.832

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Baranovskiy, A.G. et al., Structural and functional insight into mismatch extension by human DNA polymerase alpha. Proc.Natl.Acad.Sci.USA (2022)

Release Date

2022-04-20

Peptides

DNA polymerase alpha catalytic subunit: A

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

DNA polymerase alpha catalytic subunit

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