4MN3

Chromodomain antagonists that target the polycomb-group methyllysine reader protein Chromobox homolog 7 (CBX7)

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	7.5	298	40% ethylene glycol, 0.1M HEPES pH 7.5, 5% PEG 3000, VAPOR DIFFUSION, SITTING DROP, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
2.26	45.5

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 63.29	α = 90
b = 31.86	β = 119.02
c = 38.39	γ = 90

Symmetry
Space Group	C 1 2 1

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	PSI PILATUS 6M		2013-07-02	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL11-1	0.98	SSRL	BL11-1

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	1.54	29.5	90.7			9095	8874	2	1

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	1.54	1.58	86.08

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Number Reflections (All)	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	1.542	29.5	9095	8664	431	90.73	0.17416	0.17221	0.21265	RANDOM	22.812

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]
0.02			-0.01		-0.01

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	31.068
r_dihedral_angle_3_deg	18.225
r_dihedral_angle_4_deg	13.894
r_dihedral_angle_1_deg	7.046
r_long_range_B_refined	6.791
r_long_range_B_other	6.787
r_scangle_other	5.017
r_scbond_it	3.55
r_scbond_other	3.531
r_mcangle_other	3.357
r_mcangle_it	3.354
r_mcbond_it	2.249
r_mcbond_other	2.178
r_angle_refined_deg	2.139
r_angle_other_deg	1.018
r_chiral_restr	0.163
r_bond_refined_d	0.022
r_gen_planes_refined	0.013
r_gen_planes_other	0.003
r_bond_other_d	0.002

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	531
Nucleic Acid Atoms
Solvent Atoms	40
Heterogen Atoms	26

Software

Software
Software Name	Purpose
Blu-Ice	data collection
PHASER	phasing
REFMAC	refinement
MOSFLM	data reduction
SCALA	data scaling