5WTC

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

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7.5	298	2.5M AMMONIUM SULFATE, 100mM TRIS

Crystal Properties
Matthews coefficient	Solvent content
2.34	47.46

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 48.63	α = 90
b = 92.7	β = 90
c = 163.85	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		2015-06-05	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRF BEAMLINE BL17U	0.987	SSRF	BL17U

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	2.2	81.93	99.7	13.6	6.5		38426

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	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		THROUGHOUT	2.2	81.92	36451	1910	99.54	0.22549	0.22333	0.26578	RANDOM	22.524

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]
-0.67			1.44		-0.77

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	39.706
r_dihedral_angle_4_deg	19.909
r_dihedral_angle_3_deg	18.357
r_long_range_B_other	9.647
r_long_range_B_refined	9.646
r_dihedral_angle_1_deg	7.76
r_mcangle_it	6.406
r_mcangle_other	6.405
r_scangle_other	5.288
r_mcbond_it	3.602
r_mcbond_other	3.601
r_scbond_it	2.962
r_scbond_other	2.959
r_angle_refined_deg	1.993
r_angle_other_deg	1.211
r_chiral_restr	0.124
r_bond_refined_d	0.019
r_gen_planes_refined	0.009
r_bond_other_d	0.003
r_gen_planes_other	0.002
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	5526
Nucleic Acid Atoms
Solvent Atoms
Heterogen Atoms	66

Software

Software
Software Name	Purpose
REFMAC	refinement
iMOSFLM	data reduction
SCALEPACK	data scaling
PHASER	phasing