2IOR

Crystal Structure of the N-terminal Domain of HtpG, the Escherichia coli Hsp90, Bound to ADP

X-RAY DIFFRACTION

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Starting Model(s)

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

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	4.6	277	2-12% PEG4000, 0.5M 1,6-hexanediol, 0.1M NaOAc, pH 4.6, VAPOR DIFFUSION, HANGING DROP, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
2.26	45.68

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 38.494	α = 90
b = 77.193	β = 90
c = 80.479	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 QUANTUM 210	mirrors	2003-09-28	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ALS BEAMLINE 8.3.1	1.10	ALS	8.3.1

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	1.65	55.9	99.3	0.058	21.3	4.8	29672	29467		-3	17.6

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)
	1.65	1.69	94.2		0.342	3		1851

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (All)	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 1BYQ	1.65	55.9	29616	29411	1444	99.3	0.165	0.163	0.198	RANDOM	21

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]
-0.34			1.04		-0.71

RMS Deviations
Key	Refinement Restraint Deviation
r_sphericity_free	5.842
r_scangle_it	5.004
r_dihedral_angle_1_deg	4.824
r_scbond_it	3.111
r_sphericity_bonded	2.496
r_mcangle_it	2.27
r_rigid_bond_restr	1.419
r_mcbond_it	1.273
r_angle_refined_deg	1.226
r_angle_other_deg	0.756
r_symmetry_vdw_other	0.282
r_nbd_other	0.25
r_nbd_refined	0.205
r_symmetry_vdw_refined	0.161
r_symmetry_hbond_refined	0.149
r_xyhbond_nbd_refined	0.144
r_nbtor_other	0.078
r_chiral_restr	0.076
r_bond_refined_d	0.011
r_gen_planes_refined	0.005
r_bond_other_d	0.002
r_gen_planes_other	0.002
r_dihedral_angle_2_deg
r_dihedral_angle_3_deg
r_dihedral_angle_4_deg
r_nbtor_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1759
Nucleic Acid Atoms
Solvent Atoms	251
Heterogen Atoms	44

Software

Software
Software Name	Purpose
REFMAC	refinement
ADSC	data collection
DENZO	data reduction
SCALEPACK	data scaling
AMoRE	phasing