2Z90

Crystal Structure of the Second Dps from Mycobacterium smegmatis

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	Microbatch method under oil	6.5	293	20mM Tris-HCl (pH 7.9), 200 mM NaCl, PEG-3000, 200mM MgCl2, 0.1M sodium cacodylate (pH 6.5), Microbatch method under oil, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.3	46.53

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 90.008	α = 90
b = 90.008	β = 90
c = 421.522	γ = 120

Symmetry
Space Group	H 3 2

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100	IMAGE PLATE	MAR scanner 345 mm plate	mirrors	2006-05-24	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU ULTRAX 18	1.5418

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Sym 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	2.4	30	99.9	0.143	15.3	17.2		26434			30.6

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	2.4	2.49	99.3		0.48	3.5		2584

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	1O9R	2.4	29.94	26434	1276	99.8	0.187	0.187	0.227	RANDOM	27.8

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]
3.13	2.55		3.13		-6.25

RMS Deviations
Key	Refinement Restraint Deviation
c_dihedral_angle_d	19.2
c_scangle_it	2.63
c_scbond_it	1.91
c_mcangle_it	1.76
c_angle_deg	1.2
c_mcbond_it	1.15
c_improper_angle_d	0.88
c_bond_d	0.006
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	4973
Nucleic Acid Atoms
Solvent Atoms	412
Heterogen Atoms	8

Software

Software
Software Name	Purpose
CNS	refinement
HKL-2000	data collection
DENZO	data reduction
SCALEPACK	data scaling
PHASER	phasing