5JBJ

Crystal structure of chicken LGP2 with 5'p 12-mer dsRNA at 3.6 A resolution

X-RAY DIFFRACTION

---

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	6.5	277	chLGP2, directly after size exclusion chromatography, was mixed with dsRNA in a 1:1 ratio and incubated for 30 minutes on ice. The complex was concentrated with an Amicon Ultra concentrator to around 10 mg/ml and then 2 mM ADP:AlF4 and 2 mM MgCl2 were added. chLGP2:12bp dsRNA:ADP:AlF4 complex was mixed with reservoir buffer (0.1 M Bis-Tris propane pH 6.5, 0.05-0.1 M magnesium formate) in a 2:1 ratio

Crystal Properties
Matthews coefficient	Solvent content
2.71	54.57

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 90.09	α = 90
b = 90.09	β = 90
c = 196.73	γ = 120

Symmetry
Space Group	P 64

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 PILATUS3 6M		2014-02-24	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID23-1	0.9786	ESRF	ID23-1

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	3.58	78.02	78.02	0.067	20.74	11.51		10663

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	3.58	3.73	99		1.18		10.32

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	5JB2	3.58	78.02	10121	542	99.83	0.25647	0.25312	0.31881	RANDOM	202.316

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]
0.43	0.22		0.43		-1.4

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	33.078
r_dihedral_angle_3_deg	11.876
r_long_range_B_refined	11.442
r_long_range_B_other	11.441
r_dihedral_angle_4_deg	11.038
r_mcangle_it	7.897
r_mcangle_other	7.896
r_scangle_other	6.344
r_dihedral_angle_1_deg	5.159
r_mcbond_it	4.585
r_mcbond_other	4.585
r_scbond_it	3.612
r_scbond_other	3.608
r_angle_refined_deg	0.954
r_angle_other_deg	0.857
r_chiral_restr	0.055
r_bond_refined_d	0.006
r_gen_planes_refined	0.003
r_bond_other_d	0.001
r_gen_planes_other	0.001
r_nbd_refined
r_nbd_other
r_nbtor_refined
r_nbtor_other
r_xyhbond_nbd_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_refined
r_symmetry_vdw_other
r_symmetry_hbond_refined
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_scangle_it
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	5007
Nucleic Acid Atoms	512
Solvent Atoms
Heterogen Atoms	1

Software

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