2F8K

Sequence specific recognition of RNA hairpins by the SAM domain of Vts1

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	5.5	298	2.5 M Ammonium sulfate, 50 mM MES pH 5.5, 10 mM Magnesium Acetate, VAPOR DIFFUSION, HANGING DROP, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
2.62	53.05

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 27.55	α = 90
b = 44.53	β = 90
c = 129.23	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	IMAGE PLATE	RIGAKU RAXIS IV		2005-07-20	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU MICROMAX-002	1.54

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Sym 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	64.55	99.9	0.057	11.37	6.4		11366	2	2

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2	2.1	99.9		0.139	6.43	5.7	1523

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB Entry: 2D3D	2	64.55	11388	11366	789	99.84	0.231	0.23	0.228	0.277	RANDOM	26.027

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]
-0.22			0.37		-0.15

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	40.636
r_dihedral_angle_4_deg	16.707
r_dihedral_angle_3_deg	15.855
r_dihedral_angle_1_deg	4.659
r_scangle_it	1.595
r_angle_refined_deg	1.319
r_scbond_it	1.055
r_mcangle_it	0.701
r_mcbond_it	0.407
r_nbtor_refined	0.298
r_nbd_refined	0.197
r_xyhbond_nbd_refined	0.189
r_symmetry_hbond_refined	0.148
r_symmetry_vdw_refined	0.137
r_chiral_restr	0.069
r_bond_refined_d	0.01
r_gen_planes_refined	0.004

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	672
Nucleic Acid Atoms	317
Solvent Atoms	117
Heterogen Atoms

Software

Software
Software Name	Purpose
REFMAC	refinement
PDB_EXTRACT	data extraction
CrystalClear	data reduction
XDS	data scaling
PHASER	phasing