4LTP

Bacterial sodium channel in high calcium, I222 space group, crystal 2

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	5	277	200 mM calcium chloride, 30% PEG400, 100 mM sodium acetate, pH 5.0, 0.5 M TMAO, VAPOR DIFFUSION, HANGING DROP, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
6.88	82.1

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 147.265	α = 90
b = 161.499	β = 90
c = 161.69	γ = 90

Symmetry
Space Group	I 2 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	100	CCD	ADSC QUANTUM 315r		2011-11-21	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ALS BEAMLINE 8.3.1	1.11587	ALS	8.3.1

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	3.8	50	99.4	0.181	6	8.2	19278	19162			143

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	3.8	4.01	97		3.306	0.5	6.4	2683

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 4LTO	3.8	15	18975	18013	962	98.2	0.22708	0.22708	0.22469	0.27289	RANDOM	170.143

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]
10.06			-0.35		-9.71

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	38.416
r_long_range_B_refined	32.532
r_dihedral_angle_3_deg	24.195
r_mcangle_it	23.288
r_dihedral_angle_4_deg	19.362
r_scbond_it	17.877
r_mcbond_it	15.008
r_dihedral_angle_1_deg	7.529
r_angle_refined_deg	1.624
r_chiral_restr	0.092
r_bond_refined_d	0.011
r_gen_planes_refined	0.006

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4079
Nucleic Acid Atoms
Solvent Atoms	4
Heterogen Atoms	7

Software

Software
Software Name	Purpose
ADSC	data collection
PHASER	phasing
REFMAC	refinement
MOSFLM	data reduction
SCALA	data scaling