Experiment: 4QUL

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	8.5	291	Proteins were dialyzed in a buffer of 10 mM Tris-HCl, pH 8.5, 1 mM DTT and concentrated to 10 mg/mL. Inhibitor, Ac-DEVD-CMK reconstituted in DMSO, was then added at a 5:1 inhibitor:peptide ratio (w/w). The protein was diluted to a concentration of 8 mg/mL by adding 10 mM Tris-HCl, pH 8.5, concentrated DTT, and concentrated NaN3 so that the final buffer consisted of 10 mM Tris-HCl, pH 8.5, 10 mM DTT, and 3 mM NaN3. Crystals were obtained at 291K by the hanging drop vapor diffusion method using 4 uL drops that contained equal volumes of protein and reservoir solutions over a 0.5 mL reservoir. The reservoir solutions for optimal crystal growth consisted of 100 mM sodium citrate, pH 5.0, 3 mM NaN3, 10 mM DTT, and 10% 16% PEG 6000 (w/v). Crystals appeared within 3.5 to 6 weeks for all mutants, VAPOR DIFFUSION, HANGING DROP

Crystal Properties
Matthews coefficient	Solvent content
2.23	44.79

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 108.508	α = 90
b = 96.752	β = 126.63
c = 68.417	γ = 90

Symmetry
Space Group	C 1 2 1

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	MARMOSAIC 300 mm CCD		2013-06-19	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 22-ID	1.0	APS	22-ID

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	1.898	33.773	98.19			43961	43961	2	2

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	1.9	1.93	97.9

Refinement

Statistics
Diffraction ID	Structure Solution Method	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (All)	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	1.898	33.773	1.34	43961	43961	2005	98.19	0.2168	0.2149	0.2577	Random

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]

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	14.27
f_angle_d	1.15
f_chiral_restr	0.05
f_bond_d	0.008
f_plane_restr	0.005

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3844
Nucleic Acid Atoms
Solvent Atoms	207
Heterogen Atoms	9

Software

Software
Software Name	Purpose
MAR345	data collection
SERGUI	data collection
PHENIX	model building
PHENIX	refinement
HKL-2000	data reduction
HKL-2000	data scaling
PHENIX	phasing

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.