1ZR5

Crystal structure of the macro-domain of human core histone variant macroH2A1.2

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	6.5	298	25% PEG 5000MME 0.1 M Bis-Tris pH 6.5, VAPOR DIFFUSION, SITTING DROP, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
2.3	46.3

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 40.549	α = 90
b = 72.258	β = 90
c = 144.641	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	MARRESEARCH		2004-11-18	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID14-1	0.93100	ESRF	ID14-1

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Sym 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	2.9	72.36	97.5	0.061	19.7	6.9	9957	9713	-3	-3

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.9	3.08	84.9		0.311	4.46	4.7	1342

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (I)	Cut-off Sigma (F)	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	MOLECULAR REPLACEMENT	THROUGHOUT	homology model of macroH2A1.2 based on PDB-ID 1HJZ	2.92	72.36	-3	-3	9225	9225	487	100	0.2165	0.2165	0.21343	0.27691	RANDOM	58.584

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]
5.97			-0.77		-5.2

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.398
r_dihedral_angle_3_deg	21.945
r_dihedral_angle_4_deg	14.66
r_dihedral_angle_1_deg	6.454
r_scangle_it	2.125
r_angle_refined_deg	1.64
r_scbond_it	1.228
r_mcangle_it	0.969
r_mcbond_it	0.531
r_symmetry_vdw_refined	0.331
r_nbtor_refined	0.314
r_nbd_refined	0.242
r_symmetry_hbond_refined	0.167
r_xyhbond_nbd_refined	0.159
r_chiral_restr	0.106
r_bond_refined_d	0.015
r_gen_planes_refined	0.004

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2848
Nucleic Acid Atoms
Solvent Atoms	7
Heterogen Atoms

Software

Software
Software Name	Purpose
REFMAC	refinement
XDS	data reduction
XDS	data scaling
PHASER	phasing