6HW5

Yeast 20S proteasome in complex with 18

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	5CZ4

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.8	293	20 mM MgAC2, 13% MPD, 0.1 M MES

Crystal Properties
Matthews coefficient	Solvent content
3.67	66.52

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 138.44	α = 90
b = 299.48	β = 113.25
c = 147.31	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	100	PIXEL	DECTRIS PILATUS3 2M		2016-07-22	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID30B	1.0	ESRF	ID30B

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	2.9	50	98.3	0.064	13.8	3.1		239026

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	2.9	3	99.6		0.551	2.8

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	5CZ4	2.9	15	225482	11868	97.78	0.18201	0.1805	0.21057	RANDOM	87.641

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]
2.37		0.29	-5.3		1.95

RMS Deviations
Key	Refinement Restraint Deviation
r_sphericity_free	35.261
r_dihedral_angle_2_deg	34.315
r_dihedral_angle_3_deg	14.338
r_dihedral_angle_4_deg	14.31
r_sphericity_bonded	8.403
r_dihedral_angle_1_deg	5.239
r_long_range_B_refined	4.896
r_long_range_B_other	4.878
r_mcangle_it	4.435
r_mcangle_other	4.435
r_scangle_other	3.888
r_mcbond_it	3.297
r_mcbond_other	3.297
r_scbond_it	3.11
r_scbond_other	3.109
r_rigid_bond_restr	1.161
r_angle_refined_deg	1.136
r_angle_other_deg	0.895
r_chiral_restr	0.061
r_bond_refined_d	0.007
r_gen_planes_refined	0.003
r_bond_other_d	0.002
r_gen_planes_other	0.001
r_nbd_refined
r_nbd_other
r_nbtor_refined
r_nbtor_other
r_xyhbond_nbd_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_refined
r_symmetry_vdw_other
r_symmetry_hbond_refined
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_scangle_it

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	49304
Nucleic Acid Atoms
Solvent Atoms	233
Heterogen Atoms	178

Software

Software
Software Name	Purpose
XDS	data reduction
XSCALE	data scaling
REFMAC	phasing
REFMAC	refinement