8YTI

Crystal Structure of Nucleosome-H1x Linker Histone Assembly (sticky-169a DNA fragment)

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP		291	40-45 mM CaCl2, 25 mM KCl, 10 mM Na-acetate (pH 4.5)

Crystal Properties
Matthews coefficient	Solvent content
2.43	49.37

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 104.852	α = 90
b = 102.111	β = 96.337
c = 216.179	γ = 90

Symmetry
Space Group	P 1 21 1

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	98	PIXEL	DECTRIS PILATUS 2M-F		2015-09-19	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SLS BEAMLINE X06DA	1.00	SLS	X06DA

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	CC (Half)	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	2.7	92.22	99.6	0.998	9.8	3.4		124272

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.7	2.85			0.521

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Work	R-Free	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	FREE R-VALUE	2.7	92.22	124251	2402	99.562	0.211	0.2096	0.2669	88.021

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]
-2.576		0.622	-1.286		3.634

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	29.684
r_dihedral_angle_3_deg	19.796
r_dihedral_angle_4_deg	18.479
r_lrange_it	10.573
r_lrange_other	10.567
r_scangle_it	7.637
r_scangle_other	7.637
r_dihedral_angle_1_deg	6.598
r_mcangle_it	6.48
r_mcangle_other	6.48
r_scbond_it	4.929
r_scbond_other	4.929
r_mcbond_it	4.192
r_mcbond_other	4.191
r_angle_other_deg	1.334
r_angle_refined_deg	1.229
r_symmetry_nbd_refined	0.285
r_nbd_other	0.271
r_symmetry_xyhbond_nbd_refined	0.233
r_symmetry_nbd_other	0.213
r_nbtor_refined	0.204
r_metal_ion_refined	0.203
r_nbd_refined	0.186
r_xyhbond_nbd_refined	0.165
r_symmetry_metal_ion_refined	0.152
r_symmetry_nbtor_other	0.075
r_symmetry_xyhbond_nbd_other	0.069
r_chiral_restr	0.066
r_bond_refined_d	0.005
r_gen_planes_refined	0.005
r_bond_other_d	0.001
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	14012
Nucleic Acid Atoms	13846
Solvent Atoms	157
Heterogen Atoms	68

Software

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