2riq

Crystal Structure of the Third Zinc-binding domain of human PARP-1

Method: X-RAY DIFFRACTION Dmax: 83.0 Å Quality: REASONABLE

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

Poly [ADP-ribose] polymerase 1

Homo sapiens

UniProt P09874

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 homooligomer Homooligomer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain A; UniProt 216–366 Fragment:Third Zinc-binding domain ZN ZINC ION × 2 EOH ETHANOL × 2 GOL GLYCEROL × 6 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 8.5;277 K;20% ethanol, 100 mM Tris-HCl pH 8.5, 25 mM NaCl, and 0.5 mM TCEP, VAPOR DIFFUSION, SITTING DROP, temperature 277K Resolution 1.70 Å R-free 0.230

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.

104 other PDB entries and 209 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name PARP1_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 2–152; UniProt 216–366

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 2riq

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 2riq
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2. Structure Basics 2. Structure Basics

Entry ID entry_id2riq
Deposition date deposition_date2007-10-12
Structure title titleCrystal Structure of the Third Zinc-binding domain of human PARP-1
Keywords keywords;Zn-binding domain, Zn ribbon, Zn finger, ADP-ribosylation, DNA damage, DNA repair, DNA-binding, Glycosyltransferase, Metal-binding, NAD, Nucleus, Phosphorylation, Transferase, Zinc-finger ;; TRANSFERASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier20.26
Radius of gyration Rg (electron density) rg_electron20.30
Forward intensity I(0) i04630100.00
Molecular weight molecular_weight15554.0 kDa
Excluded volume excluded_volume19595 ų
Envelope volume envelope_volume26243 ų
Hydration-shell volume shell_volume12707 ų
Envelope diameter envelope_diameter84.9
Shell Rg shell_rg23.72
Envelope Rg envelope_rg22.50
Shape Rg shape_rg20.33
Total Rg total_rg20.86
Total atoms total_atoms1086
Residues n_residues135
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 dmax83.0
Rg (real space) rg_real20.68
Rg uncertainty (real space) rg_real_error0.96
I(0) (real space) i0_real4.6300e+06
I(0) uncertainty (real space) i0_real_error5.8410e+04
Rg (reciprocal space) rg_reciprocal20.59
I(0) (reciprocal space) i0_reciprocal4630000.0000
Solution quality estimate total_estimate0.7158
Solution quality rating solution_quality REASONABLE a REASONABLE solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary19.0
Skewness Skewness skewness0.890
Kurtosis Kurtosis kurtosis0.808
Angular range angular_range— – 0.3900 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha540700.0000
Real-space data points n_real_points71
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.354; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.250; Smooth: 0.991

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (5)

7. Fold Classification (SCOP + CATH) 2 domains

CATH v4.4 (2 domains)

Domain ID domain_id2riqA01
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology20 — Histone, subunit A
Homologous superfamily homologous superfamily130
Domain ID domain_id2riqA02
Class class2 — Mainly Beta
Architecture architecture20 — Single Sheet
Topology topology25 — N-terminal domain of TfIIb
Homologous superfamily homologous superfamily630

8. Citations (1)

9. Files and Curves (10)