3G48

Crystal structure of chaperone CsaA form Bacillus anthracis str. Ames

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	6.5		12% Peg 20000, 10 % glycerol, 0.1 M MES, pH 6.5, VAPOR DIFFUSION, SITTING DROP

Crystal Properties
Matthews coefficient	Solvent content
2.03	39.27

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 39.359	α = 90
b = 67.564	β = 90
c = 74.642	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		CCD	ADSC QUANTUM Q315r	mirrors	2008-12-17	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 19-ID	0.9794	APS	19-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	1.5	40	98.8	0.077	20	4.3	32637	32247	2	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	1.5	1.53	86.7		0.56	2.1	3.3	1400

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (I)	Cut-off Sigma (F)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB entry 2NZH	1.5	34.82	2	2	32171	30543	1628	98.51	0.169	0.16744	0.16564	0.20057	RANDOM	8.352

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]
-0.59			1.38		-0.79

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	37.832
r_dihedral_angle_4_deg	25.494
r_dihedral_angle_3_deg	12.825
r_dihedral_angle_1_deg	6.495
r_scangle_it	4.593
r_scbond_it	2.858
r_mcangle_it	1.781
r_angle_refined_deg	1.745
r_mcbond_it	1.093
r_angle_other_deg	0.915
r_mcbond_other	0.344
r_chiral_restr	0.106
r_bond_refined_d	0.02
r_gen_planes_refined	0.009
r_bond_other_d	0.001
r_gen_planes_other	0.001
r_nbd_refined
r_nbd_other
r_nbtor_refined
r_nbtor_other
r_xyhbond_nbd_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_refined
r_symmetry_vdw_other
r_symmetry_hbond_refined
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1653
Nucleic Acid Atoms
Solvent Atoms	256
Heterogen Atoms	21

Software

Software
Software Name	Purpose
SBC-Collect	data collection
MOLREP	phasing
REFMAC	refinement
HKL-3000	data reduction
HKL-3000	data scaling