3MD3

Crystal Structure of the First Two RRM Domains of Yeast Poly(U) Binding Protein (Pub1)

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	5	283	2.0M ammonium sulfate, 0.1M sodium citrate, pH 5.0, VAPOR DIFFUSION, HANGING DROP, temperature 283K

Crystal Properties
Matthews coefficient	Solvent content
3.02	59.3

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 57.615	α = 90
b = 57.615	β = 90
c = 237.082	γ = 120

Symmetry
Space Group	P 61 2 2

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray		IMAGE PLATE	MAR scanner 345 mm plate		2009-05-22	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU RUH3R

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	2.7	50	99.3	0.117	7.5	6		7092

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)
	2.7	2.8	99.7		0.324		6.2	680

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	MOLECULAR REPLACEMENT	THROUGHOUT	2.7	49.9	7062	334	99.82	0.218	0.216	0.268	RANDOM	19.472

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	0.03		0.06		-0.09

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	37.457
r_dihedral_angle_3_deg	17.576
r_dihedral_angle_4_deg	9.95
r_dihedral_angle_1_deg	5.699
r_angle_refined_deg	0.939
r_scangle_it	0.694
r_mcangle_it	0.517
r_scbond_it	0.392
r_mcbond_it	0.279
r_chiral_restr	0.07
r_bond_refined_d	0.007
r_gen_planes_refined	0.002

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1304
Nucleic Acid Atoms
Solvent Atoms	80
Heterogen Atoms	88

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
MOLREP	phasing
REFMAC	refinement
PDB_EXTRACT	data extraction
MAR345dtb	data collection
HKL-2000	data reduction