3MGP

Binding of Cobalt ions to the Nucleosome Core Particle

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION	6	291	85mM MnCl2, 60mM KCl, 40mM K-cacodylate, pH 6.0, VAPOR DIFFUSION, temperature 291K

Crystal Properties
Matthews coefficient	Solvent content
2.72	54.75

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 106.502	α = 90
b = 109.94	β = 90
c = 183.352	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	PIXEL	PSI PILATUS 6M	Dynamically bendable mirror	2009-06-22	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SLS BEAMLINE X06SA	1.6	SLS	X06SA

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge 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	2.44	94.49	91.6	0.063	17	4.7	73764	72231			64

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.44	2.57	59.5		0.442	1	2.1	6843

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	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	1KX5	2.44	52.6	72231	1466	91.3	0.24022	0.23935	0.28245	RANDOM	83.713

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]
1.44			-3.08		1.64

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	33.484
r_dihedral_angle_4_deg	20.863
r_dihedral_angle_3_deg	17.763
r_dihedral_angle_1_deg	5.909
r_scangle_it	2.127
r_angle_refined_deg	1.433
r_mcangle_it	1.375
r_scbond_it	1.195
r_mcbond_it	0.777
r_nbtor_refined	0.302
r_nbd_refined	0.195
r_symmetry_vdw_refined	0.184
r_xyhbond_nbd_refined	0.145
r_symmetry_hbond_refined	0.099
r_chiral_restr	0.074
r_bond_refined_d	0.01
r_gen_planes_refined	0.004

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	6160
Nucleic Acid Atoms	6021
Solvent Atoms
Heterogen Atoms	47

Software

Software
Software Name	Purpose
REFMAC	refinement
MOSFLM	data reduction
SCALA	data scaling
REFMAC	phasing