3ALY

Crystal Structure of RNase HI from Sulfolobus tokodaii with C-terminal deletion

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	5.5	277	20% PEG 3000, 0.1M citrate, pH 5.5, VAPOR DIFFUSION, SITTING DROP, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
2.25	45.33

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 40.975	α = 89.72
b = 41.018	β = 89.71
c = 43.534	γ = 86.76

Symmetry
Space Group	P 1

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	2009-12-04	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SPRING-8 BEAMLINE BL38B1	1.0	SPring-8	BL38B1

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (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	1.66	50	96.2	0.034	0.031	37.21	3.9		32375	5	5

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.66	1.72	94.3		0.218	0.193	6.14	3.9	3175

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	2EHG	1.66	20.48	30726	1639	96.36	0.19996	0.19714	0.25048	RANDOM	25.003

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]

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	32.083
r_dihedral_angle_3_deg	18.392
r_dihedral_angle_4_deg	17.057
r_scangle_it	7.212
r_dihedral_angle_1_deg	6.546
r_scbond_it	4.436
r_mcangle_it	3.035
r_mcbond_it	1.842
r_angle_refined_deg	1.391
r_chiral_restr	0.115
r_gen_planes_refined	0.017
r_bond_refined_d	0.011

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2244
Nucleic Acid Atoms
Solvent Atoms	254
Heterogen Atoms

Software

Software
Software Name	Purpose
BL38	data collection
MOLREP	phasing
REFMAC	refinement
HKL-2000	data reduction
HKL-2000	data scaling