4OQA

Structure of Human PARP-1 bound to a DNA double strand break in complex with (2Z)-2-(2,4-dihydroxybenzylidene)-3-oxo-2,3-dihydro-1-benzofuran-7-carboxamide

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	4DQY	PDB ENTRY 4DQY

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	7.5	293	25 mM HEPES, 150 mM sodium chloride, 1 mM EDTA, 0.1 mM TCEP, 6.8% PEG3350, 2% ethylene glycol, pH 7.5, VAPOR DIFFUSION, SITTING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.87	57.07

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 65.16	α = 90
b = 114.23	β = 90
c = 294.24	γ = 90

Symmetry
Space Group	P 21 21 21

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100	CCD	ADSC QUANTUM 315r		2013-07-28	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSLS BEAMLINE X29A	1.075	NSLS	X29A

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	Net I Over Average Sigma (I)	Redundancy	Number Reflections (All)	Number Reflections (Observed)	Observed Criterion Sigma (F)	Observed Criterion Sigma (I)	B (Isotropic) From Wilson Plot
1	3.65	50				25245	24937

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	3.65

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 4DQY	3.65	20	23595	1250	98.1	0.30022	0.29845	0.33424	RANDOM	257.215

Temperature Factor Modeling
Anisotropic B[1][1]	Anisotropic B[1][2]	Anisotropic B[1][3]	Anisotropic B[2][2]	Anisotropic B[2][3]	Anisotropic B[3][3]
-1.03			9.67		-8.64

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	32.131
r_dihedral_angle_3_deg	14.893
r_dihedral_angle_4_deg	11.394
r_dihedral_angle_1_deg	4.338
r_long_range_B_refined	4.105
r_long_range_B_other	4.105
r_mcangle_it	2.114
r_mcangle_other	2.114
r_scangle_other	1.226
r_mcbond_it	1.126
r_mcbond_other	1.126
r_angle_other_deg	0.86
r_angle_refined_deg	0.774
r_scbond_it	0.605
r_scbond_other	0.605
r_chiral_restr	0.059
r_bond_refined_d	0.004
r_gen_planes_refined	0.003
r_bond_other_d	0.001
r_gen_planes_other	0.001
r_nbd_refined
r_nbd_other
r_nbtor_refined
r_nbtor_other
r_xyhbond_nbd_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_refined
r_symmetry_vdw_other
r_symmetry_hbond_refined
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_scangle_it
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	10666
Nucleic Acid Atoms	1060
Solvent Atoms
Heterogen Atoms	26

Software

Software
Software Name	Purpose
CBASS	data collection
REFMAC	refinement
xia2	data reduction
xia2	data scaling