7X43

Crystal structure of chlorotoxin mutant - M1R

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP		293	1 M monosodium phosphate and 0.75 M sodium citrate

Crystal Properties
Matthews coefficient	Solvent content
1.58	22.12

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 22.39	α = 90
b = 26.5	β = 90
c = 47.257	γ = 90

Symmetry
Space Group	P 21 21 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	ADSC QUANTUM 315r		2016-05-15	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSRRC BEAMLINE BL13B1	1.00000	NSRRC	BL13B1

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	1.04	30	99.92	0.036	45.5	6.5		14128

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	1.04	1.08			0.164

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 (All)	R-Work	R-Free	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	7X41	1.04	23.628	14086	711	99.922	0.14	0.1393	0.1457	7.418

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]
0.013			0.029		-0.042

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	28.688
r_dihedral_angle_4_deg	10.495
r_dihedral_angle_3_deg	9.686
r_dihedral_angle_1_deg	8.248
r_angle_other_deg	1.528
r_lrange_it	1.502
r_angle_refined_deg	1.468
r_lrange_other	1.288
r_rigid_bond_restr	0.853
r_scangle_it	0.8
r_scangle_other	0.798
r_scbond_it	0.668
r_scbond_other	0.666
r_mcangle_other	0.629
r_mcangle_it	0.622
r_mcbond_it	0.418
r_mcbond_other	0.391
r_symmetry_nbd_refined	0.25
r_nbd_refined	0.217
r_symmetry_nbd_other	0.183
r_nbd_other	0.169
r_nbtor_refined	0.165
r_xyhbond_nbd_refined	0.132
r_chiral_restr	0.085
r_symmetry_nbtor_other	0.081
r_symmetry_xyhbond_nbd_refined	0.053
r_bond_refined_d	0.008
r_gen_planes_refined	0.006
r_bond_other_d	0.001
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	276
Nucleic Acid Atoms
Solvent Atoms	41
Heterogen Atoms

Software

Software
Software Name	Purpose
REFMAC	refinement
HKL-2000	data reduction
HKL-2000	data scaling
HKL-3000	phasing