Experiment: 2I1A

A Retroviral Protease-Like Domain in the Eukaryotic Protein Ddi1

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION	7.4	293	10 mM potassium phosphate, 1% dioxane, 12.5-22.5% PEG2000, pH 7.4, VAPOR DIFFUSION, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
1.99	38.31

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 46.8	α = 90
b = 74.33	β = 90
c = 153.54	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	120	IMAGE PLATE	RIGAKU RAXIS IV	osmic mirrors	2005-04-29	M	MAD

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU	1.5418, 0.97935, 0.97949, 0.91165

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	2.3	39.96	98.8	0.07	18.8	7.1	24696	24391		-3

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	2.3	2.38	90		0.514	3.9

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MAD	THROUGHOUT	2.3	39.96	24591	24306	1654		0.229	0.2292	0.266	0.2673	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
c_angle_deg	1.342
c_bond_d	0.007

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3563
Nucleic Acid Atoms
Solvent Atoms	155
Heterogen Atoms

Software

Software
Software Name	Purpose
SOLVE	phasing
CNS	refinement
HKL-2000	data reduction
SCALEPACK	data scaling