1LZN

NEUTRON STRUCTURE OF HEN EGG-WHITE LYSOZYME

NEUTRON DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		4.7		BATCH TECHNIQUE EQUAL AMOUNT OF 1.0 % SOLUTION OF HEN EGG-WHITE LYSOZYME ( BOEHRINGER) AND 2.8 % NANO3 IN 50 MM ACETATE BUFFER (PH 4.7)

Crystal Properties
Matthews coefficient	Solvent content
1.82	31.82

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 27.28	α = 88.8
b = 32.04	β = 108.8
c = 34.27	γ = 111.6

Symmetry
Space Group	P 1

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	neutron	295	IMAGE PLATE			1997-12-12	L	LAUE

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1			2.7-3.5

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	R Sym 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	1.7	13.6	83	0.146	0.114	35	3.7		8976		2

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
NEUTRON DIFFRACTION	MOLECULAR REPLACEMEN XPLOR	THROUGHOUT	PDB ENTRY 4LZT	1.7	13.6	2	8976	471	83	0.204	0.221	RANDOM	17.82

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_angle_deg	0.033
x_bond_d	0.016
x_bond_d_na
x_bond_d_prot
x_angle_d
x_angle_d_na
x_angle_d_prot
x_angle_deg_na
x_angle_deg_prot
x_dihedral_angle_d
x_dihedral_angle_d_na
x_dihedral_angle_d_prot
x_improper_angle_d
x_improper_angle_d_na
x_improper_angle_d_prot
x_mcbond_it
x_mcangle_it
x_scbond_it
x_scangle_it

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1001
Nucleic Acid Atoms
Solvent Atoms	243
Heterogen Atoms	21

Software

Software
Software Name	Purpose
CCP4	refinement
CCP4	data reduction
X-PLOR	refinement
CCP4	data scaling