2VU9

CRYSTAL STRUCTURE OF BOTULINUM NEUROTOXIN SEROTYPE A BINDING DOMAIN IN COMPLEX WITH GT1B

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		5.5		21% PEG3350, 0.2 M MGCL2, 0.1 M BISTRIS PH5.5

Crystal Properties
Matthews coefficient	Solvent content
2.23	45

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 72.7	α = 90
b = 116.11	β = 90
c = 105.52	γ = 90

Symmetry
Space Group	C 2 2 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	CCD	MARRESEARCH		2007-12-18	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL11-1		SSRL	BL11-1

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	1.6	20	99.6	0.04	27	7.4		58845

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	1.6	1.7	99.2		0.4	5.3	7.3

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	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 2NYY	1.6	19.67	55875	2968	99.6	0.162	0.161	0.186	RANDOM	13.7

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]
0.02			0.39		-0.41

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.519
r_dihedral_angle_4_deg	16.003
r_dihedral_angle_3_deg	12.869
r_dihedral_angle_1_deg	7.301
r_scangle_it	3.21
r_scbond_it	2.303
r_angle_refined_deg	1.455
r_mcangle_it	1.298
r_mcbond_it	1.08
r_angle_other_deg	0.852
r_symmetry_vdw_other	0.205
r_nbd_refined	0.199
r_nbd_other	0.198
r_symmetry_vdw_refined	0.196
r_nbtor_refined	0.182
r_symmetry_hbond_refined	0.153
r_xyhbond_nbd_refined	0.129
r_nbtor_other	0.097
r_chiral_restr	0.089
r_bond_refined_d	0.012
r_gen_planes_refined	0.006
r_bond_other_d	0.003
r_gen_planes_other	0.001
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other
r_mcangle_other
r_scbond_other
r_scangle_other
r_long_range_B_refined
r_long_range_B_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3501
Nucleic Acid Atoms
Solvent Atoms	397
Heterogen Atoms	89

Software

Software
Software Name	Purpose
REFMAC	refinement
XDS	data reduction
XSCALE	data scaling
MOLREP	phasing