Experiment: 5FK2

SAM-I riboswitch bearing the H. marismortui Kt-7 variant 3bn is GG

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	5FJC	PDB ENTRY 5FJC

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		7		40 MM NA-CACODYLATE (PH 7.0), 80 MM KCL, 10 MM BACL2, 12 MM SPERMINE-HCL, 14% (V/V) MPD

Crystal Properties
Matthews coefficient	Solvent content
1.82	32.46

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 61.48	α = 90
b = 61.48	β = 90
c = 153.75	γ = 90

Symmetry
Space Group	P 43 21 2

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	173	PIXEL	DECTRIS PILATUS 6M		2013-08-04	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	DIAMOND BEAMLINE I03		Diamond	I03

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	2.6	76.87	99.8	0.07	13.2	8.3		9734		2.6	75.34

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	2.6	2.72	100		0.98	2.1	8.3

Refinement

Statistics
Diffraction ID	Structure Solution Method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	PDB ENTRY 5FJC	2.6	57.085	1.34	9656	904	99.75	0.2187	0.2157	0.2289	0.2726	0.2807	106.28

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]

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	16.131
f_angle_d	0.648
f_chiral_restr	0.035
f_plane_restr	0.005
f_bond_d	0.002

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms
Nucleic Acid Atoms	2034
Solvent Atoms	14
Heterogen Atoms	38

Software

Software
Software Name	Purpose
PHENIX	refinement
iMOSFLM	data reduction
Aimless	data scaling
PHASER	phasing