6SQV

Structure of the U1A variant A1-98 Y31H/Q36R/R70W

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP		293	2.2 M ammonium sulfate, 0.2 M tri-potassium citrate

Crystal Properties
Matthews coefficient	Solvent content
5.02	75.48

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 76.23	α = 90
b = 76.43	β = 90
c = 137.35	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	PIXEL	DECTRIS PILATUS 6M		2017-12-17	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	PETRA III, DESY BEAMLINE P11	1.03320	PETRA III, DESY	P11

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	Rrim I (All)	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	2.45	51.075	100	0.05	0.052	1	25.8	12.8		30234

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Rrim I (All)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.45	2.49	100		1.79	1.865	0.655	1.4	12.8

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 (All)	R-Work	R-Free	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	FREE R-VALUE	2.45	51.075	30179	1497	99.864	0.242	0.2405	0.2734	77.412

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]
-0.635			1.56		-0.925

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.648
r_dihedral_angle_3_deg	18.497
r_dihedral_angle_4_deg	17.665
r_lrange_it	14.081
r_lrange_other	14.077
r_scangle_it	11.354
r_scangle_other	11.254
r_mcangle_it	9.603
r_mcangle_other	9.6
r_scbond_it	8.212
r_scbond_other	8.169
r_dihedral_angle_1_deg	7.881
r_mcbond_other	7.042
r_mcbond_it	7.04
r_angle_refined_deg	1.634
r_angle_other_deg	1.244
r_symmetry_nbd_refined	0.514
r_nbd_other	0.284
r_nbd_refined	0.208
r_symmetry_nbd_other	0.197
r_xyhbond_nbd_refined	0.176
r_nbtor_refined	0.171
r_symmetry_nbtor_other	0.095
r_chiral_restr	0.075
r_symmetry_xyhbond_nbd_refined	0.012
r_bond_refined_d	0.01
r_gen_planes_refined	0.009
r_bond_other_d	0.001
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2806
Nucleic Acid Atoms
Solvent Atoms	5
Heterogen Atoms	15

Software

Software
Software Name	Purpose
REFMAC	refinement
xia2	data reduction
Aimless	data scaling
PHASER	phasing