6F2R

A heterotetramer of human HspB2 and HspB3

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	3Q9P	ENSEMBLE OF 3Q9P, 2WJ5, 2WJ7
experimental model	PDB	2WJ5	ENSEMBLE OF 3Q9P, 2WJ5, 2WJ7
experimental model	PDB	2WJ7	ENSEMBLE OF 3Q9P, 2WJ5, 2WJ7

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7.8	294	0.6M SODIUM FORMATE, 0.1 M TRIS HCL pH7.8, 7.8% PGA, 2mM GTP

Crystal Properties
Matthews coefficient	Solvent content
4.46	72.44

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 177.139	α = 90
b = 177.139	β = 90
c = 126.461	γ = 120

Symmetry
Space Group	P 31

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	110	PIXEL	DECTRIS PILATUS 6M-F		2013-07-25	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	DIAMOND BEAMLINE I02	0.97949	Diamond	I02

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	3.9	126.46	99.8	0.131	6.5	3.7		147958			123.8

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	3.9	4.11	99.9		1.163

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	ENSEMBLE OF 3Q9P, 2WJ5, 2WJ7	3.9	78	40354	2088	99.8	0.298	0.297	0.313	RANDOM	144.7

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]
21.0901			21.0901		-42.1803

RMS Deviations
Key	Refinement Restraint Deviation
t_other_torsion	24.06
t_omega_torsion	3.64
t_angle_deg	1.19
t_bond_d	0.009
t_dihedral_angle_d
t_incorr_chiral_ct
t_pseud_angle
t_trig_c_planes
t_gen_planes
t_it
t_nbd
t_improper_torsion
t_chiral_improper_torsion
t_sum_occupancies
t_utility_distance
t_utility_angle
t_utility_torsion
t_ideal_dist_contact

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	7592
Nucleic Acid Atoms
Solvent Atoms
Heterogen Atoms

Software

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