2V7Y

Crystal structure of the molecular chaperone DnaK from Geobacillus kaustophilus HTA426 in post-ATP hydrolysis state

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	3HSC	PDB ENTRY 3HSC, 1DKZ
experimental model	PDB	1DKZ	PDB ENTRY 3HSC, 1DKZ

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		7.5		200 MM AMMONIUM CITRATE, PH 7.5, 20% (V/V) ISOPROPANOL, 15% (W/V) PEG3350

Crystal Properties
Matthews coefficient	Solvent content
3.15	61

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 52.753	α = 90
b = 71.455	β = 90
c = 183.864	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	ADSC CCD	VERTICALLY COLLIMATING PREMIRROR, LN2-COOLED FIXED-EXIT DOUBLE CRYSTAL SI(111) MONOCHROMATOR , TOROIDAL FOCUSING MIRROR		M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSRRC BEAMLINE BL13B1		NSRRC	BL13B1

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	2.37	29.58	94.8	0.06	14.9	3.1		25994		2	30.2

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	2.37	2.45	93.9		0.49	2	3.1

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	PDB ENTRY 3HSC, 1DKZ	2.37	29.58	25994	1251	89.3	0.227	0.227	0.27	RANDOM	43.8

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]
-3.78			5.04		-1.26

RMS Deviations
Key	Refinement Restraint Deviation
c_dihedral_angle_d	26.5
c_scangle_it	6.86
c_scbond_it	5.43
c_mcangle_it	4.56
c_improper_angle_d	4.22
c_mcbond_it	3.17
c_angle_deg	2.4
c_bond_d	0.014
c_bond_d_na
c_bond_d_prot
c_angle_d
c_angle_d_na
c_angle_d_prot
c_angle_deg_na
c_angle_deg_prot
c_dihedral_angle_d_na
c_dihedral_angle_d_prot
c_improper_angle_d_na
c_improper_angle_d_prot

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3720
Nucleic Acid Atoms
Solvent Atoms	166
Heterogen Atoms	33

Software

Software
Software Name	Purpose
CNS	refinement
Blu-Ice	data reduction
SCALEPACK	data scaling
MOLREP	phasing