1mq2

Human DNA Polymerase Beta Complexed With Gapped DNA Containing an 8-oxo-7,8-dihydro-Guanine and dAMP

Method: X-RAY DIFFRACTION Dmax: 72.5 Å Quality: EXCELLENT

1. Protein Identity and Related Structures Protein Identity & Related Structures

DNA POLYMERASE BETA

Homo sapiens

UniProt P06746

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein–DNA Monomer Protein × 1 DNA 3 PDB declaration: tetrameric(4) Consistent with all polymer counts Chain A; UniProt 1–335 Not recorded 5'-D(*CP*CP*GP*AP*CP*(8OG)P*TP*CP*GP*CP*AP*TP*CP*AP*GP*C)-3' × 1 5'-D(*GP*CP*TP*GP*AP*TP*GP*CP*GP*(2DA))-3' × 1 5'-D(P*GP*TP*CP*GP*G)-3' × 1 D5M 2'-DEOXYADENOSINE-5'-MONOPHOSPHATE × 1 NA SODIUM ION × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 7.5;291 K;20% PEG 3350, 350 mM sodium acetate, 50 mM imidazole at 18 degrees (C), pH 7.5, VAPOR DIFFUSION, SITTING DROP, temperature 291.0K Resolution 3.10 Å R-free 0.317

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

431 other PDB entries and 433 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name DPOB_HUMAN
Isoform
PDB entities 4
Chains and sequence ranges Author chain A; PDBConstruct 1–335; UniProt 1–335

The page prioritizes protein identity, the current assembly, associated components, oligomeric state and cross-PDB links. Chain mapping and sequence ranges are retained as data evidence. Internal IDs, import timestamps and assembly operation expressions are maintenance fields and are not shown here.

SAXS scattering curve SAXS Profile

SAXS profile for 1mq2

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 1mq2
Download Download

2. Structure Basics 2. Structure Basics

Entry ID entry_id1mq2
Deposition date deposition_date2002-09-13
Structure title titleHuman DNA Polymerase Beta Complexed With Gapped DNA Containing an 8-oxo-7,8-dihydro-Guanine and dAMP
Keywords keywordsTRANSFERASE, DNA, TRANSFERASE-DNA COMPLEX; TRANSFERASE/DNA
Experimental Method methodX-RAY DIFFRACTION

3. SAXS Parameters (CRYSOL theoretical calculation) 3. SAXS Parameters (CRYSOL)

Radius of gyration Rg (Guinier) rg_guinier23.98
Radius of gyration Rg (electron density) rg_electron23.32
Forward intensity I(0) i047371100.00
Molecular weight molecular_weight47007.0 kDa
Excluded volume excluded_volume56170 ų
Envelope volume envelope_volume74446 ų
Hydration-shell volume shell_volume26567 ų
Envelope diameter envelope_diameter75.8
Shell Rg shell_rg30.27
Envelope Rg envelope_rg23.13
Shape Rg shape_rg23.31
Total Rg total_rg24.09
Total atoms total_atoms3269
Residues n_residues355
Spherical-harmonic order n_harmonics20
q range q_range— – 0.5000 −1
Data points n_points101
Shell type shell_typedirectional
Solvent electron density solvent_density0.3340 e/ų
Shell contrast contrast_shell0.0300 e/ų
CRYSOL version crysol_version4.1.3

4. P(r) Distance Distribution (GNOM inversion) 4. P(r) Analysis (GNOM)

Maximum dimension Dmax dmax72.5
Rg (real space) rg_real23.81
Rg uncertainty (real space) rg_real_error0.31
I(0) (real space) i0_real4.7370e+07
I(0) uncertainty (real space) i0_real_error6.1630e+05
Rg (reciprocal space) rg_reciprocal23.85
I(0) (reciprocal space) i0_reciprocal47370000.0000
Solution quality estimate total_estimate0.9092
Solution quality rating solution_quality EXCELLENT a EXCELLENT solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary31.7
Skewness Skewness skewness0.089
Kurtosis Kurtosis kurtosis-0.490
Angular range angular_range— – 0.3300 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha4468000.0000
Real-space data points n_real_points65
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.946; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.988; Smooth: 0.990

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (7)

7. Fold Classification (SCOP + CATH) 7 domains

SCOP 2.08 (3 domains)

Domain ID domain_idd1mq2a1
Class classa — All alpha proteins
Fold Fold folda.60 — SAM domain-like
Superfamily Superfamily superfamilya.60.6 — DNA polymerase beta, N-terminal domain-like
Family Family familya.60.6.1 — DNA polymerase beta, N-terminal domain-like
Domain ID domain_idd1mq2a2
Class classa — All alpha proteins
Fold Fold folda.60 — SAM domain-like
Superfamily Superfamily superfamilya.60.12 — PsbU/PolX domain-like
Family Family familya.60.12.1 — DNA polymerase beta-like, second domain
Domain ID domain_idd1mq2a3
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.218 — Nucleotidyltransferase
Superfamily Superfamily superfamilyd.218.1 — Nucleotidyltransferase
Family Family familyd.218.1.2 — DNA polymerase beta-like

CATH v4.4 (4 domains)

Domain ID domain_id1mq2A01
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology150 — DNA polymerase; domain 1
Homologous superfamily homologous superfamily110 — DNA polymerase beta, N-terminal domain-like
Domain ID domain_id1mq2A02
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology150 — DNA polymerase; domain 1
Homologous superfamily homologous superfamily20 — 5' to 3' exonuclease, C-terminal subdomain
Domain ID domain_id1mq2A03
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology460 — Beta Polymerase; domain 2
Homologous superfamily homologous superfamily10 — Beta Polymerase, domain 2
Domain ID domain_id1mq2A04
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology210 — Beta Polymerase; domain 3
Homologous superfamily homologous superfamily10 — DNA polymerase, thumb domain

8. Citations (1)

9. Files and Curves (10)