4OKE | pdb_00004oke

Structure of RNase AS, a polyadenylate-specific exoribonuclease affecting mycobacterial virulence in vivo

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7.5	293	0.1M HEPES, 10%(w/v) polyethylene glycol 8000, 8%(v/v) ethylene glycol, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.17	43.45

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 42.433	α = 90
b = 76.664	β = 90
c = 104.372	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	RIGAKU SATURN 944		2012-01-09	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU	1.5

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	1.7	50	99.9			38285	38323

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.7	1.73	99.9

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 (All)	R-Factor (Observed)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	SAD	THROUGHOUT	1.7	15	33606	33606	1772	92.65	0.18809	0.18809	0.1858	0.1872	0.23152	0.2296	RANDOM	24.56

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]
-0.05			0.02		0.02

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	29.232
r_dihedral_angle_4_deg	21.503
r_dihedral_angle_3_deg	13.9
r_dihedral_angle_1_deg	6.305
r_scangle_it	4.862
r_scbond_it	3.431
r_mcangle_it	2.205
r_angle_refined_deg	2.128
r_mcbond_it	1.341
r_chiral_restr	0.185
r_bond_refined_d	0.024
r_gen_planes_refined	0.011

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2633
Nucleic Acid Atoms
Solvent Atoms	343
Heterogen Atoms	73

Software

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