4OZS

RNA binding protein

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	3.35	293	Diffraction quality crystals grew from 3 uL drops in 24-well sitting drop Cryschem plates (Hampton Research) in 2:1 ratios of crystallant 100 mM Sodium citrate pH 3.35, 8 % (w/v) PEG 3350 and protein equilibrated against 1 mL of crystallant at 293 K.

Crystal Properties
Matthews coefficient	Solvent content
4.43	72.22

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 54.025	α = 90
b = 75.023	β = 90
c = 85.117	γ = 90

Symmetry
Space Group	P 21 21 21

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 315r		2013-07-05		MAD

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	AUSTRALIAN SYNCHROTRON BEAMLINE MX2	0.980, 0.954	Australian Synchrotron	MX2

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	2.17	56.28	99.78	0.01873	24.44	2	37530	18791

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	2.17	2.25	98.43		0.3134	2.68	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		THROUGHOUT	2.17	56.28	17825	966	99.77	0.21933	0.21691	0.26549	RANDOM	53.438

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]
0.85			-0.99		0.14

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	44.576
r_dihedral_angle_3_deg	18.679
r_dihedral_angle_4_deg	7.426
r_dihedral_angle_1_deg	6.539
r_angle_refined_deg	2.442
r_chiral_restr	0.154
r_bond_refined_d	0.021
r_gen_planes_refined	0.01
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
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_mcbond_it
r_mcbond_other
r_mcangle_it
r_mcangle_other
r_scbond_it
r_scbond_other
r_scangle_it
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	1365
Nucleic Acid Atoms
Solvent Atoms	45
Heterogen Atoms

Software

Software
Software Name	Purpose
REFMAC	refinement
XDS	data scaling
SCALA	data scaling
PHENIX	phasing
PHENIX	refinement
PDB_EXTRACT	data extraction