1OR2

APOLIPOPROTEIN E3 (APOE3) TRUNCATION MUTANT 165

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1BZ4

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	5.6	293	50MM NA-CACODYLATE, PH 5.6, 10-20% PEG 400 AT ROOM TEMPERATURE. NO 2-ME ADDED. NOTE: WITH 2-ME OR LOWER PEG CONCENTRATIONS, OTHER CRYSTAL FORMS APPEARS (SEE PDB ENTRIES 1BZ4, 1OR3), VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.19	43.8

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 47.68	α = 90
b = 55.59	β = 90
c = 63.59	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	125	AREA DETECTOR	ADSC	COLLIMATOR	1997-04-15	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU RU200

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	2.49	25	93.8	0.069	0.069	29.7	6.6	5913	5913			45.7

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	2.49	2.68	82.4		0.245	0.245	4.4	4

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
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	1BZ4	2.5	10	2	5457	544	89.5	0.267	0.297	RANDOM	47.4

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]
-0.23			-0.49		0.72

RMS Deviations
Key	Refinement Restraint Deviation
x_dihedral_angle_d	23.9
x_mcangle_it	4.86
x_mcbond_it	3.31
x_scangle_it	3.22
x_scbond_it	2.18
x_angle_deg	1.8
x_improper_angle_d	1.03
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_na
x_dihedral_angle_d_prot
x_improper_angle_d_na
x_improper_angle_d_prot

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1079
Nucleic Acid Atoms
Solvent Atoms	53
Heterogen Atoms

Software

Software
Software Name	Purpose
UCSD-system	data collection
UCSD-system	data reduction
EPMR	phasing
X-PLOR	model building
CCP4	model building
X-PLOR	refinement
UCSD-system	data scaling
X-PLOR	phasing
CCP4	phasing