4E1H

Fragment of human prion protein

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	3.5	298	100mM Citrate pH 3.5, 10mM iron (II) chloride, and 25% PEG 3350, vapor diffusion, hanging drop, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
1.88	34.56

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 32.317	α = 90
b = 42.898	β = 90
c = 46.353	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	100	CCD	ADSC QUANTUM 315		2010-11-27		SAD
2	1	x-ray	100	CCD	ADSC QUANTUM 315		2010-11-27		SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 24-ID-C	1.73964	APS	24-ID-C
2	SYNCHROTRON	APS BEAMLINE 24-ID-C	0.97918	APS	24-ID-C

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	1.4	30	99.8	0.059	8.7	4.6		13272

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	1.4	1.45	100		0.756		4.6	1307

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	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		THROUGHOUT	1.4	22.55	12531	649	99.4	0.167	0.164	0.218	RANDOM	24.01

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]
1.25			0.74		-1.99

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	41.451
r_dihedral_angle_3_deg	14.147
r_dihedral_angle_1_deg	8.611
r_scangle_it	8.389
r_scbond_it	5.952
r_mcangle_it	4.399
r_mcbond_it	2.793
r_rigid_bond_restr	2.738
r_angle_other_deg	1.887
r_angle_refined_deg	1.751
r_mcbond_other	0.875
r_chiral_restr	0.135
r_bond_refined_d	0.016
r_gen_planes_refined	0.011
r_bond_other_d	0.005
r_gen_planes_other	0.002
r_dihedral_angle_4_deg
r_nbd_refined
r_nbd_other
r_nbtor_refined
r_nbtor_other
r_xyhbond_nbd_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_refined
r_symmetry_vdw_other
r_symmetry_hbond_refined
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	576
Nucleic Acid Atoms
Solvent Atoms	56
Heterogen Atoms	55

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
SHELX	phasing
REFMAC	refinement
PDB_EXTRACT	data extraction
Adxv	data processing
SHELXD	phasing