7PQ2

Crystal Structure of the Ring Nuclease 0811 from Sulfolobus islandicus (Sis0811) in its apo form

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP		293	30% PEG3000, 0.1M CHES pH 9.5

Crystal Properties
Matthews coefficient	Solvent content
2.49	50.53

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 77.372	α = 90
b = 106.436	β = 102.919
c = 78.443	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	PIXEL	DECTRIS EIGER X 16M		2019-11-28	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	MAX IV BEAMLINE BioMAX	0.98	MAX IV	BioMAX

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	CC (Half)	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	2.38	61.73	99.9	0.99	14.1	7		24724

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.38	2.43			0.756

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 (All)	R-Work	R-Free	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	FREE R-VALUE	3QYF	2.38	61.61	23654	1176	95.084	0.166	0.1634	0.2226	42.532

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]
0.032		0.004	-0.033		-0.001

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.116
r_dihedral_angle_4_deg	21.626
r_dihedral_angle_3_deg	18.298
r_lrange_it	8.973
r_dihedral_angle_1_deg	6.239
r_scangle_it	5.916
r_mcangle_it	4.043
r_scbond_it	3.76
r_mcbond_it	2.544
r_angle_refined_deg	1.776
r_nbtor_refined	0.32
r_nbd_refined	0.224
r_symmetry_nbd_refined	0.193
r_xyhbond_nbd_refined	0.165
r_symmetry_xyhbond_nbd_refined	0.151
r_ncsr_local_group_1	0.14
r_chiral_restr	0.124
r_bond_refined_d	0.01
r_gen_planes_refined	0.009

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4442
Nucleic Acid Atoms
Solvent Atoms	254
Heterogen Atoms

Software

Software
Software Name	Purpose
REFMAC	refinement
XDS	data reduction
Aimless	data scaling
PHASER	phasing