2OB9

Structure of bacteriophage HK97 tail assembly chaperone

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7.6	298	0.2M NH4(OAc), 0.1M Na HEPES pH 7.6, 20% PEG 3350, VAPOR DIFFUSION, HANGING DROP, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
2.75	55.25

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 101.14	α = 90
b = 101.14	β = 90
c = 63.382	γ = 90

Symmetry
Space Group	I 4

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		2006-08-12	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 17-ID		APS	17-ID

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	2.3	36.8	98.9	0.062	16.8	3.3		13384

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	2.3	2.38	92.9		0.402	2.12	2.8	2549

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	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	SAD	THROUGHOUT	2.3	36.8	27546	13384	710	98.48	0.23484	0.23198	0.29138	RANDOM	55.004

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]
-2.44			-2.44		4.88

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	42.788
r_dihedral_angle_3_deg	20.123
r_dihedral_angle_4_deg	19.016
r_dihedral_angle_1_deg	6.431
r_scangle_it	3.017
r_scbond_it	2.068
r_angle_refined_deg	1.677
r_mcangle_it	1.434
r_mcbond_it	0.976
r_nbtor_refined	0.299
r_nbd_refined	0.224
r_symmetry_vdw_refined	0.174
r_xyhbond_nbd_refined	0.172
r_chiral_restr	0.145
r_symmetry_hbond_refined	0.145
r_bond_refined_d	0.019
r_gen_planes_refined	0.008
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
r_nbd_other
r_nbtor_other
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1695
Nucleic Acid Atoms
Solvent Atoms	53
Heterogen Atoms

Software

Software
Software Name	Purpose
REFMAC	refinement
HKL-2000	data collection
HKL-2000	data reduction
HKL-2000	data scaling
SHARP	phasing