1UW3

The crystal structure of the globular domain of sheep prion protein

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1I4M	PDB ENTRY 1I4M

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		8.6		pH 8.60

Crystal Properties
Matthews coefficient	Solvent content
2.2	43.6

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 85.068	α = 90
b = 29.045	β = 90
c = 45.896	γ = 90

Symmetry
Space Group	P 21 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	165	CCD	ADSC CCD		2003-06-15	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SRS BEAMLINE PX14.1		SRS	PX14.1

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	2.05	19.3	93.2	0.08	6	2.5		7095

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	2.05	2.13	78		0.35	2	1.5

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 (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 1I4M	2.05	84.51	6769	326	92.4	0.227	0.222	0.33	RANDOM	41.69

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]
-1.08			-0.63		1.71

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.627
r_dihedral_angle_3_deg	19.592
r_dihedral_angle_4_deg	16.17
r_dihedral_angle_1_deg	7.414
r_scangle_it	4.585
r_scbond_it	3.489
r_mcangle_it	1.946
r_angle_refined_deg	1.677
r_mcbond_it	1.278
r_symmetry_vdw_refined	0.366
r_xyhbond_nbd_refined	0.284
r_nbd_refined	0.23
r_symmetry_hbond_refined	0.174
r_chiral_restr	0.117
r_bond_refined_d	0.016
r_gen_planes_refined	0.008
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
r_nbd_other
r_nbtor_refined
r_nbtor_other
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other
r_mcangle_other
r_scbond_other
r_scangle_other
r_long_range_B_refined
r_long_range_B_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	883
Nucleic Acid Atoms
Solvent Atoms	71
Heterogen Atoms	21

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
AMoRE	phasing
MOLREP	phasing
REFMAC	refinement