3MG8

Structure of yeast 20S open-gate proteasome with Compound 16

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7	293	100 mM MES, 40 mM MgOAc, 15% 2-methyl-2,4-pentanediol (MPD), 10 mM EDTA, pH 7.0, vapor diffusion, hanging drop, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
3.79	67.54

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 136.333	α = 90
b = 299.185	β = 113.13
c = 145.667	γ = 90

Symmetry
Space Group	P 1 21 1

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray		CCD	MAR CCD 165 mm			M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 31-ID		APS	31-ID

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	2.59	50	95.6	0.073	11.1	3.3		315407

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	2.59	2.69	85.9		0.327		2.8	28297

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	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	pdb entry 1g0u	2.59	49.88	315315	6368	95.22	0.224	0.224	0.252	RANDOM	43.403

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]
0.18		-0.02	-0.27		0.08

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.626
r_dihedral_angle_3_deg	17.257
r_dihedral_angle_4_deg	15.882
r_dihedral_angle_1_deg	5.752
r_scangle_it	1.99
r_angle_refined_deg	1.12
r_scbond_it	1.113
r_mcangle_it	0.89
r_mcbond_it	0.462
r_chiral_restr	0.076
r_bond_refined_d	0.008
r_gen_planes_refined	0.004

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	49298
Nucleic Acid Atoms
Solvent Atoms	5
Heterogen Atoms	126

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
REFMAC	refinement
PDB_EXTRACT	data extraction