Experiment: 6HMK

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	7.5	293	750 nL purified protein at 7.5 mg/mL in 50 mM HEPES, pH 7.0, 150 mM NaCl, 2 mM DTT was mixed with 250 nL of seed stock and 1000 nL of a precipitant consisting of 18-23 % (w/v) PEG-3350, 0.2 M ammonium sulphate, 0.1 M PCTP pH 7.5. Seed stock was prepared using a Seed BeadTM (Hampton Research) from a co-crystal of GS-PARG(448-976 [K617A, Q618A, K619A, E688A, K689A, K690A]) with ADP-ribose, with co-crystallisation mother liquor (19 % (w/v) PEG-3350, 0.2 M ammonium sulphate, 0.1 M PCTP pH 7.5) as the stabilising solution. The final volume of the seed stock was 100 microL.

Crystal Properties
Matthews coefficient	Solvent content
2.47	50.22

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 67.09	α = 90
b = 90.11	β = 90
c = 95.5	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	PIXEL	DECTRIS PILATUS 6M-F		2013-07-11	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	DIAMOND BEAMLINE I02	0.979	Diamond	I02

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (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	2.06	34.83	100	0.092	11.4	5.9		36540			27.39

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.06	2.16	100		0.597	3.2	6.1

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	4A0D	2.06	28.77	36386	1823	99.7	0.1554	0.1536	0.1888	RANDOM	33.03

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]
6.2142			3.0208		-9.235

RMS Deviations
Key	Refinement Restraint Deviation
OTHER TORSION ANGLES	16.45
PEPTIDE OMEGA TORSION ANGLES	3.43
BOND ANGLES	0.96
BOND LENGTHS	0.01

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4028
Nucleic Acid Atoms
Solvent Atoms	448
Heterogen Atoms	62

Software

Software
Software Name	Purpose
XDS	data reduction
Aimless	data scaling
BUSTER	refinement
PHASER	phasing

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.