Experiment: 1IOT

STABILIZATION OF HEN EGG WHITE LYSOZYME BY A CAVITY-FILLING MUTATION

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	4.7	296	NaCl, Na-acetete, pH 4.7, VAPOR DIFFUSION, HANGING DROP, temperature 296K

Crystal Properties
Matthews coefficient	Solvent content
2.08	40.81

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 79.16	α = 90
b = 79.16	β = 90
c = 37.98	γ = 90

Symmetry
Space Group	P 43 21 2

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	296	IMAGE PLATE	RIGAKU RAXIS IIC			M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU RU300

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	1.76		88.7	0.058				10397

Refinement

Statistics
Diffraction ID	Structure Solution Method	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)	Mean Isotropic B
X-RAY DIFFRACTION		1.75		1	10397			0.171		0.1646

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
x_dihedral_angle_d	23.107
x_angle_deg	1.466
x_improper_angle_d	1.288
x_bond_d	0.009

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1001
Nucleic Acid Atoms
Solvent Atoms	72
Heterogen Atoms

Software

Software
Software Name	Purpose
X-PLOR	model building
X-PLOR	refinement
X-PLOR	phasing