3S32

Crystal structure of Ash2L N-terminal domain

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7	298	0.2M MgAcetate and 17-20% PEG 3350, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
2.79	55.89

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 49.893	α = 90
b = 49.893	β = 90
c = 167.542	γ = 120

Symmetry
Space Group	P 31 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	200	CCD	MARMOSAIC 300 mm CCD		2009-10-01	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 21-ID-G	0.9785	APS	21-ID-G

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	2.45	30	99.6	55.3	18.9	9475	9437	2	3

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	2.45	2.49	100

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 (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	SAD	THROUGHOUT	2.45	24.95	9437	8970	448	99.46	0.307	0.22734	0.22549	0.26342	RANDOM	54.021

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]
-0.32	-0.16		-0.32		0.48

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	31.856
r_dihedral_angle_3_deg	19.978
r_dihedral_angle_4_deg	15.302
r_dihedral_angle_1_deg	6.585
r_scangle_it	4.485
r_scbond_it	3.049
r_mcangle_it	1.937
r_angle_refined_deg	1.909
r_mcbond_it	1.068
r_chiral_restr	0.123
r_bond_refined_d	0.021
r_gen_planes_refined	0.013

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1286
Nucleic Acid Atoms
Solvent Atoms	7
Heterogen Atoms	1

Software

Software
Software Name	Purpose
HKL-2000	data collection
PHENIX	model building
REFMAC	refinement
HKL-2000	data reduction
HKL-2000	data scaling
PHENIX	phasing