3ATN

Glycine ethyl ester shielding on the aromatic surfaces of lysozyme: Implication for suppression of protein aggregation

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	Batch	4.5	293	0.05M sodium acetate, 0.8M sodium chloride, pH 4.5, Batch, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
1.9	35.42

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 76.744	α = 90
b = 76.744	β = 90
c = 37.078	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	100	IMAGE PLATE	RIGAKU RAXIS V	mirrors	2010-12-08	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SPRING-8 BEAMLINE BL32B2	1.000	SPring-8	BL32B2

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	1.17	40	100				35863

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.17	1.21	99.9

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	MOLECULAR REPLACEMENT	THROUGHOUT	1.17	33.39	35863	1883	99.56	0.15234	0.15122	0.17377	RANDOM	13.794

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]
-0.06			-0.06		0.11

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.372
r_dihedral_angle_4_deg	18.145
r_dihedral_angle_3_deg	13.323
r_sphericity_free	9.939
r_sphericity_bonded	5.98
r_dihedral_angle_1_deg	5.839
r_scangle_it	4.77
r_scbond_it	3.507
r_mcangle_it	2.766
r_rigid_bond_restr	1.989
r_mcbond_it	1.873
r_angle_refined_deg	1.59
r_symmetry_vdw_refined	0.351
r_nbtor_refined	0.309
r_nbd_refined	0.233
r_symmetry_hbond_refined	0.174
r_xyhbond_nbd_refined	0.173
r_chiral_restr	0.119
r_metal_ion_refined	0.097
r_bond_refined_d	0.015
r_gen_planes_refined	0.009
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
r_nbd_other
r_nbtor_other
r_xyhbond_nbd_other
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

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1001
Nucleic Acid Atoms
Solvent Atoms	161
Heterogen Atoms	11

Software

Software
Software Name	Purpose
HKL-2000	data collection
MOLREP	phasing
PHENIX	refinement
HKL-2000	data reduction
HKL-2000	data scaling
REFMAC	refinement