1W99

Mosquito-larvicidal toxin Cry4Ba from Bacillus thuringiensis ssp. Israelensis

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7	293	VAPOUR DIFFUSION AT 20C IN HANGING DROPS CONTAINING 1:1 MIXTURE OF PROTEIN AT 8 MG/ML IN 50 MM SODIUM CARBONATE PH 10.5, 0.1 M SODIUM BROMIDE, 1 MM DTT AND PROTEASE INHIBITORS, AND THE RESERVOIR BUFFER CONSISTING OF 100MM TRIS ACETATE PH7-8 AND 0.4-0.6 M SODIUM BROMIDE.

Crystal Properties
Matthews coefficient	Solvent content
4.8	74

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 185.8	α = 90
b = 185.8	β = 90
c = 187.9	γ = 120

Symmetry
Space Group	H 3 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 CCD		2001-06-15	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SRS BEAMLINE PX14.2		SRS	PX14.2

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	1.75	73.97	99.6	0.066	24.1	9.7		1207111			24.4

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	1.75	1.81	100		0.353	15.1	8.5

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	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	MIRAS	THROUGHOUT	PDB ENTRY 1DLC, PDB ENTRY 1CIY	1.75	73.97	124587	6217	100	0.205	0.205	0.218	RANDOM	27.2

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]
-1.932	-1.764		-1.932		3.865

RMS Deviations
Key	Refinement Restraint Deviation
c_dihedral_angle_d	23.9
c_scangle_it	2.77
c_scbond_it	2
c_mcangle_it	1.83
c_mcbond_it	1.22
c_angle_deg	1.2
c_improper_angle_d	0.71
c_bond_d	0.005
c_bond_d_na
c_bond_d_prot
c_angle_d
c_angle_d_na
c_angle_d_prot
c_angle_deg_na
c_angle_deg_prot
c_dihedral_angle_d_na
c_dihedral_angle_d_prot
c_improper_angle_d_na
c_improper_angle_d_prot

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4460
Nucleic Acid Atoms
Solvent Atoms	601
Heterogen Atoms	33

Software

Software
Software Name	Purpose
CNS	refinement
MOSFLM	data reduction
SCALA	data scaling
MLPHARE	phasing