3MBY

Ternary complex of DNA Polymerase BETA with template base A and 8oxodGTP in the active site with a dideoxy terminated primer

PDB DOI: https://doi.org/10.2210/pdb3MBY/pdb
NAKB: 3MBY

Classification: Transferase, Lyase/DNA
Organism(s): Homo sapiens
Expression System: Escherichia coli
Mutation(s): No

Deposited: 2010-03-26 Released: 2010-06-09
Deposition Author(s): Batra, V.K., Beard, W.A., Hou, E.W., Pedersen, L.C., Prasad, R., Wilson, S.H.

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 2.00 Å
R-Value Free: 0.246
R-Value Work: 0.190
R-Value Observed: 0.190

Starting Model: experimental
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wwPDB Validation 3D Report Full Report

Ligand Structure Quality Assessment

This is version 1.2 of the entry. See complete history.

Literature

Mutagenic conformation of 8-oxo-7,8-dihydro-2'-dGTP in the confines of a DNA polymerase active site.

Batra, V.K., Beard, W.A., Hou, E.W., Pedersen, L.C., Prasad, R., Wilson, S.H.

(2010) Nat Struct Mol Biol 17: 889-890

PubMed: 20526335 Search on PubMedSearch on PubMed Central
DOI: https://doi.org/10.1038/nsmb.1852
Primary Citation of Related Structures:
3MBY

PubMed Abstract:
The major product of oxidative base damage is 8-oxo-7,8-dihydro-2'-deoxyguanine (8odG). The coding potential of this lesion is modulated by its glycosidic torsion angle that controls whether its Watson-Crick or Hoogsteen edge is used for base pairing. The 2.0-A structure of DNA polymerase (pol) beta bound with 8odGTP opposite template adenine indicates that the modified nucleotide assumes the mutagenic syn conformation and that the nonmutagenic anti conformation would be incompatible with efficient DNA synthesis.

Organizational Affiliation

Laboratory of Structural Biology, National Institute of Environmental Health Sciences, US National Institutes of Health, Research Triangle Park, North Carolina, USA.

Macromolecule Content

Total Structure Weight: 48.4 kDa
Atom Count: 3,708
Modelled Residue Count: 357
Deposited Residue Count: 366
Unique protein chains: 1
Unique nucleic acid chains: 3

Macromolecules

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(by identity cutoff) | 3D Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
DNA polymerase beta	A	335	Homo sapiens	Mutation(s): 0 Gene Names: POLB EC: 2.7.7.7 (PDB Primary Data), 4.2.99 (PDB Primary Data), 4.2.99.18 (UniProt)
UniProt & NIH Common Fund Data Resources
Find proteins for P06746 (Homo sapiens) Explore P06746 Go to UniProtKB: P06746
PHAROS: P06746 GTEx: ENSG00000070501
Entity Groups
Sequence Clusters	30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt Group	P06746
Sequence Annotations Expand
Reference Sequence

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Entity ID: 2
Molecule	Chains	Length	Organism	Image
DNA (5'-D(CPCPGPAPCPAPGPCPGPCPAPTPCPAPGPC)-3')	B [auth T]	16	N/A
Sequence Annotations Expand
Reference Sequence

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Entity ID: 3
Molecule	Chains	Length	Organism	Image
DNA (5'-D(GPCPTPGPAPTPGPCPGP(DOC))-3')	C [auth P]	10	N/A
Sequence Annotations Expand
Reference Sequence

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Entity ID: 4
Molecule	Chains	Length	Organism	Image
DNA (5'-D(PGPTPCPGP*G)-3')	D	5	N/A
Sequence Annotations Expand
Reference Sequence

Small Molecules

Ligands 4 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
8DG Query on 8DG Download Ideal Coordinates CCD File SDF format, chain E [auth A] MOL2 format, chain E [auth A] mmCIF format, chain E [auth A]	E [auth A]	8-OXO-2'-DEOXYGUANOSINE-5'-TRIPHOSPHATE C₁₀ H₁₆ N₅ O₁₄ P₃ BUZOGVVQWCXXDP-VPENINKCSA-N		Interactions Focus chain E [auth A]
CL Query on CL Download Ideal Coordinates CCD File SDF format, chain J [auth A] SDF format, chain K [auth A] SDF format, chain L [auth A] MOL2 format, chain J [auth A] MOL2 format, chain K [auth A] MOL2 format, chain L [auth A] mmCIF format, chain J [auth A] mmCIF format, chain K [auth A] mmCIF format, chain L [auth A]	J [auth A], K [auth A], L [auth A]	CHLORIDE ION Cl VEXZGXHMUGYJMC-UHFFFAOYSA-M		Interactions Focus chain J [auth A] Focus chain K [auth A] Focus chain L [auth A]
MG Query on MG Download Ideal Coordinates CCD File SDF format, chain F [auth A] MOL2 format, chain F [auth A] mmCIF format, chain F [auth A]	F [auth A]	MAGNESIUM ION Mg JLVVSXFLKOJNIY-UHFFFAOYSA-N		Interactions Focus chain F [auth A]
NA Query on NA Download Ideal Coordinates CCD File SDF format, chain G [auth A] SDF format, chain H [auth A] SDF format, chain I [auth A] MOL2 format, chain G [auth A] MOL2 format, chain H [auth A] MOL2 format, chain I [auth A] mmCIF format, chain G [auth A] mmCIF format, chain H [auth A] mmCIF format, chain I [auth A]	G [auth A], H [auth A], I [auth A]	SODIUM ION Na FKNQFGJONOIPTF-UHFFFAOYSA-N		Interactions Focus chain G [auth A] Focus chain H [auth A] Focus chain I [auth A]

Experimental Data & Validation

Experimental Data

Method: X-RAY DIFFRACTION
Resolution: 2.00 Å
R-Value Free: 0.246
R-Value Work: 0.190
R-Value Observed: 0.190
Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 50.83	α = 90
b = 80.03	β = 107.7
c = 55.42	γ = 90

Software Package:

Software Name	Purpose
HKL-2000	data collection
CNS	refinement
HKL-2000	data reduction
HKL-2000	data scaling
CNS	phasing

Structure Validation

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Ligand Structure Quality Assessment

Entry History

Deposition Data

Released Date: 2010-06-09

Deposition Author(s):

Revision History (Full details and data files)

Version 1.0: 2010-06-09
Type: Initial release
Version 1.1: 2011-07-13
Changes: Version format compliance
Version 1.2: 2023-09-06
Changes: Data collection, Database references, Derived calculations, Refinement description