5kpo

Structure of human PARP1 catalytic domain bound to a quinazoline-2,4(1H,3H)-dione inhibitor

Method: X-RAY DIFFRACTION Dmax: 110.8 Å Quality: GOOD

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 monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain A; UniProt 662–1011 Fragment:catalytic domain, UNP residues 662-1011 Mutation:V762A 6WY 1-[[3-(4-ethyl-3-oxidanylidene-piperazin-1-yl)carbonyl-4-fluoranyl-phenyl]methyl]quinazoline-2,4-dione × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 7.5;298 K;2.5M AMMONIUM SULFATE, 100mM TRIS Resolution 2.65 Å R-free 0.303
2 Protein monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain B; UniProt 662–1011 Fragment:catalytic domain, UNP residues 662-1011 Mutation:V762A 6WY 1-[[3-(4-ethyl-3-oxidanylidene-piperazin-1-yl)carbonyl-4-fluoranyl-phenyl]methyl]quinazoline-2,4-dione × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 7.5;298 K;2.5M AMMONIUM SULFATE, 100mM TRIS Resolution 2.65 Å R-free 0.303

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 208 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 3–352; UniProt 662–1011 Author chain B; PDBConstruct 3–352; UniProt 662–1011

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 5kpo

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 5kpo
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2. Structure Basics 2. Structure Basics

Entry ID entry_id5kpo
Deposition date deposition_date2016-07-05
Structure title titleStructure of human PARP1 catalytic domain bound to a quinazoline-2,4(1H,3H)-dione inhibitor
Keywords keywordsInhibitor, Complex, TRANSFERASE-TRANSFERASE INHIBITOR complex; TRANSFERASE/TRANSFERASE INHIBITOR
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier30.46
Radius of gyration Rg (electron density) rg_electron29.97
Forward intensity I(0) i097130400.00
Molecular weight molecular_weight79282.0 kDa
Excluded volume excluded_volume100010 ų
Envelope volume envelope_volume125720 ų
Hydration-shell volume shell_volume35729 ų
Envelope diameter envelope_diameter116.7
Shell Rg shell_rg36.26
Envelope Rg envelope_rg30.22
Shape Rg shape_rg29.90
Total Rg total_rg30.78
Total atoms total_atoms5579
Residues n_residues701
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 dmax110.8
Rg (real space) rg_real30.59
Rg uncertainty (real space) rg_real_error0.99
I(0) (real space) i0_real9.7130e+07
I(0) uncertainty (real space) i0_real_error1.7020e+06
Rg (reciprocal space) rg_reciprocal30.53
I(0) (reciprocal space) i0_reciprocal97130000.0000
Solution quality estimate total_estimate0.8322
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary32.0
Skewness Skewness skewness0.509
Kurtosis Kurtosis kurtosis-0.111
Angular range angular_range— – 0.2600 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha23890000.0000
Real-space data points n_real_points53
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.658; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.850; Smooth: 0.991

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (2)

7. Fold Classification (SCOP + CATH) 8 domains

SCOP 2.08 (6 domains)

Domain ID domain_idd5kpoa1
Class classa — All alpha proteins
Fold Fold folda.41 — Domain of poly(ADP-ribose) polymerase
Superfamily Superfamily superfamilya.41.1 — Domain of poly(ADP-ribose) polymerase
Family Family familya.41.1.0 — automated matches
Domain ID domain_idd5kpoa2
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.166 — ADP-ribosylation
Superfamily Superfamily superfamilyd.166.1 — ADP-ribosylation
Family Family familyd.166.1.0 — automated matches
Domain ID domain_idd5kpoa3
Class classl — Artifacts
Fold Fold foldl.1 — Tags
Superfamily Superfamily superfamilyl.1.1 — Tags
Family Family familyl.1.1.1 — Tags
Domain ID domain_idd5kpob1
Class classa — All alpha proteins
Fold Fold folda.41 — Domain of poly(ADP-ribose) polymerase
Superfamily Superfamily superfamilya.41.1 — Domain of poly(ADP-ribose) polymerase
Family Family familya.41.1.0 — automated matches
Domain ID domain_idd5kpob2
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.166 — ADP-ribosylation
Superfamily Superfamily superfamilyd.166.1 — ADP-ribosylation
Family Family familyd.166.1.0 — automated matches
Domain ID domain_idd5kpob3
Class classl — Artifacts
Fold Fold foldl.1 — Tags
Superfamily Superfamily superfamilyl.1.1 — Tags
Family Family familyl.1.1.1 — Tags

CATH v4.4 (2 domains)

Domain ID domain_id5kpoA02
Class class3 — Alpha Beta
Architecture architecture90 — Alpha-Beta Complex
Topology topology228 — Phosphoenolpyruvate Carboxykinase; domain 3
Homologous superfamily homologous superfamily10
Domain ID domain_id5kpoB02
Class class3 — Alpha Beta
Architecture architecture90 — Alpha-Beta Complex
Topology topology228 — Phosphoenolpyruvate Carboxykinase; domain 3
Homologous superfamily homologous superfamily10

8. Citations (1)

9. Files and Curves (10)