2FXK

Crystal structure of the macro-domain of human core histone variant macroH2A1.1 (form A)

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1ZR5

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7.5	298	10% PEG8000, 0.1M NACL, 0.1M TRIS/ HCL PH 7.5, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 298K, pH 7.50

Crystal Properties
Matthews coefficient	Solvent content
2	39.2

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 90.77	α = 90
b = 98.27	β = 90
c = 42.05	γ = 90

Symmetry
Space Group	P 21 21 2

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		2004-12-17	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID14-1	0.931	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	2.54	90.91	99	0.079	16.12	6.7	12857	12857		-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)
	2.54	2.7	96.3		0.299	4.48	4.6	1965

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	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	1ZR5	2.54	90.91	-3	12335	12212	643	99	0.21	0.21	0.207	0.27	RANDOM	56.289

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]
-0.85			0.22		0.63

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	41.136
r_dihedral_angle_3_deg	20.406
r_dihedral_angle_4_deg	18.789
r_dihedral_angle_1_deg	7.074
r_scangle_it	1.865
r_angle_refined_deg	1.519
r_scbond_it	1.195
r_mcangle_it	0.835
r_angle_other_deg	0.814
r_mcbond_it	0.623
r_symmetry_hbond_refined	0.349
r_nbd_refined	0.233
r_symmetry_vdw_other	0.212
r_xyhbond_nbd_refined	0.196
r_nbtor_refined	0.187
r_nbd_other	0.18
r_symmetry_vdw_refined	0.147
r_mcbond_other	0.101
r_nbtor_other	0.091
r_chiral_restr	0.085
r_xyhbond_nbd_other	0.07
r_bond_refined_d	0.014
r_gen_planes_refined	0.004
r_bond_other_d	0.001
r_gen_planes_other	0.001
r_metal_ion_refined
r_metal_ion_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2810
Nucleic Acid Atoms
Solvent Atoms	43
Heterogen Atoms

Software

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