Experiment: 2YEO

A39L mutation of scorpion toxin lqh-alpha-it

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	2ASC	PDB ENTRY 2ASC

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1				0.01 M HEXADECYLTRIMETHYLAMMONIUM BROMIDE, 0.5 M SODIUM CHLORIDE, 0.01 M MAGNESIUM CHLORIDE HEXAHYDRATE PROTEIN MOLECULE WAS OF 10MG/ML DISSOLVED IN DISTILLED WATER

Crystal Properties
Matthews coefficient	Solvent content
2.65	53.6

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 129.707	α = 90
b = 129.707	β = 90
c = 129.707	γ = 90

Symmetry
Space Group	F 4 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	MIRRORS	2009-07-01	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID29		ESRF	ID29

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	1.08	50	99.9	0.06	48.6	17.2		694937		-3	10.58

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	1.08	1.1	100		0.77	2.7	17.2

Refinement

Statistics
Diffraction ID	Structure Solution Method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	PDB ENTRY 2ASC	1.08	29.003	1.34	75550	3734	99.96	0.1205	0.1204	0.1216	0.1234	0.1272	12.07

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]

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	15.148
f_angle_d	1.694
f_chiral_restr	0.097
f_bond_d	0.012
f_plane_restr	0.009

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	517
Nucleic Acid Atoms
Solvent Atoms	109
Heterogen Atoms	41

Software

Software
Software Name	Purpose
PHENIX	refinement
HKL-2000	data reduction
DENZO	data reduction
HKL-2000	data scaling
SCALEPACK	data scaling
PHENIX	phasing