8T8N

Venezuelan Equine Encephalitis Virus (VEEV) Nonstructural Protein 2 (nsP2) Cysteine Protease Inhibited with CA074

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	2HWK

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7	290	Modified JCSG+ Condition 8 (0.2 M Ammonium formate, 20% w/v PEG3350, 20% glycerol). Protein buffer contained 50 mM HEPES pH 7.0, 0.5 mM CA074, and 30 mM CaCl2

Crystal Properties
Matthews coefficient	Solvent content
2.18	43.53

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 60.762	α = 90
b = 63.582	β = 90
c = 86.283	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	150	CCD	Bruker Platinum 135		2015-12-15	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	BRUKER AXS MICROSTAR-H	1.54

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	2.32	63.58	94.6	0.1311	0.0508	18.03	13.35		14251

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)
1	2.32	2.42	92.8		0.4357	0.1717	6.08	12.79

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 (All)	R-Work	R-Free	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	2.32	51.186	14184	678	94.478	0.191	0.1903	0.2003	19.752

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]
-1.602			0.72		0.882

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	33.257
r_dihedral_angle_4_deg	19.898
r_dihedral_angle_3_deg	16.127
r_dihedral_angle_1_deg	6.564
r_dihedral_angle_other_3_deg	4.958
r_lrange_it	4.284
r_lrange_other	4.257
r_mcangle_it	2.245
r_mcangle_other	2.245
r_scangle_it	2.13
r_scangle_other	2.129
r_angle_other_deg	1.358
r_mcbond_it	1.273
r_mcbond_other	1.272
r_scbond_it	1.255
r_scbond_other	1.255
r_angle_refined_deg	1.229
r_nbd_refined	0.193
r_symmetry_nbd_other	0.193
r_xyhbond_nbd_refined	0.171
r_nbd_other	0.17
r_nbtor_refined	0.164
r_symmetry_xyhbond_nbd_refined	0.142
r_symmetry_nbd_refined	0.133
r_symmetry_nbtor_other	0.081
r_chiral_restr	0.06
r_symmetry_xyhbond_nbd_other	0.057
r_bond_refined_d	0.006
r_gen_planes_refined	0.005
r_bond_other_d	0.003
r_gen_planes_other	0.002

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2552
Nucleic Acid Atoms
Solvent Atoms	135
Heterogen Atoms	27

Software

Software
Software Name	Purpose
REFMAC	refinement
SAINT	data reduction
SADABS	data scaling
PHASER	phasing