Experiment: 5WTR

Crystal structure of a prokaryotic TRIC channel in 0.5 M KCl

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	8	289	Well solution: 22-26% PEG 3000, 0.1 M Tris-HCl pH8.0, 0.2 M NaAc, 0.2 M KCl Before being frozen, the crystals were washed and soaked in 26% PEG3000, 50 mM Tris-HCl pH 8.0, 1.1% OG, 0.1% DM, 3% ethylene glycol, 0.5 M KCl

Crystal Properties
Matthews coefficient	Solvent content
3.89	68.37

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 152.073	α = 90
b = 87.73	β = 108.9
c = 173.062	γ = 90

Symmetry
Space Group	C 1 2 1

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 315		2012-04-08	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRF BEAMLINE BL17U	1.00137	SSRF	BL17U

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	2.2	50	97.4	0.149	7.1	4.7		106700			28.4

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	2.2	2.32	94.8		0.604	2.7	4.6

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-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	SAD	FREE R-VALUE	2.2	50	106561	2614	97.4	0.2108	0.2109	0.2285	0.2289	Random selection	38.1

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]

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	9054
Nucleic Acid Atoms
Solvent Atoms	381
Heterogen Atoms	207

Software

Software
Software Name	Purpose
CNS	refinement
iMOSFLM	data reduction
SCALA	data scaling
AutoSol	phasing