2C1W

The structure of XendoU: a splicing independent snoRNA processing endoribonuclease

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		5.5		1.6M AMMONIUM SULPHATE, 0.2M PHOSPHATE BUFFER PH5.5, pH 5.50

Crystal Properties
Matthews coefficient	Solvent content
2.4	47

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 164.451	α = 90
b = 53.204	β = 121.86
c = 133.466	γ = 90

Symmetry
Space Group	C 1 2 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 CCD			M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID14-1		ESRF	ID14-1

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	2.2	20	96	0.17	8.8	4.3		64530		4

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	2.2	2.25	92.8		0.39	4	4.2

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	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	MIR	THROUGHOUT	2.2	20	46190	2463	96.9	0.274	0.274	0.277	RANDOM	39.14

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]
-0.06		0.96	0.67		0.41

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	38.496
r_dihedral_angle_3_deg	21.004
r_dihedral_angle_4_deg	20.711
r_dihedral_angle_1_deg	14.708
r_mcangle_it	4.176
r_scangle_it	3.331
r_mcbond_it	2.516
r_scbond_it	2.372
r_angle_refined_deg	1.897
r_nbtor_refined	0.317
r_nbd_refined	0.27
r_symmetry_vdw_refined	0.242
r_xyhbond_nbd_refined	0.208
r_symmetry_hbond_refined	0.166
r_chiral_restr	0.147
r_bond_refined_d	0.016
r_gen_planes_refined	0.007
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_mcangle_other
r_scbond_other
r_scangle_other
r_long_range_B_refined
r_long_range_B_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	6746
Nucleic Acid Atoms
Solvent Atoms	438
Heterogen Atoms	15

Software

Software
Software Name	Purpose
REFMAC	refinement
DENZO	data reduction
SCALEPACK	data scaling
SOLVE/RESOLVE	phasing