7OJX

E2 UBE2K covalently linked to donor Ub, acceptor di-Ub, and RING E3 primed for K48-linked Ub chain synthesis

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1YLA	1YLA, 1UBQ, 4V3L
experimental model	PDB	1UBQ	1YLA, 1UBQ, 4V3L
experimental model	PDB	4V3L	1YLA, 1UBQ, 4V3L

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	7.5	292	Crystals were grown in: 0.2 M sodium citrate, 0.1 M Bis Tris propane 7.5 and 20 % (w/v) PEG 3350. The crystallization drops were set as a 1:1 mixture of the protein complex solution and the precipitant solution.

Crystal Properties
Matthews coefficient	Solvent content
3.1	60.35

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 85.835	α = 90
b = 85.835	β = 90
c = 167.354	γ = 120

Symmetry
Space Group	P 31 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	PIXEL	DECTRIS PILATUS 6M-F		2020-02-09	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	DIAMOND BEAMLINE I04-1	0.9119	Diamond	I04-1

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	Rrim I (All)	Rpim I (All)	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	2.4	74.34	100	0.06	0.02	19.1	8.6		28670			62.67

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Rrim I (All)	Rpim I (All)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.4	2.44	99.9		1.102	0.37	0.7	8.8

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	1YLA, 1UBQ, 4V3L	2.4	74.34	1.36	28626	1412	99.96	0.1902	0.1878	0.236	94.6641

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]

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3663
Nucleic Acid Atoms
Solvent Atoms	50
Heterogen Atoms	18

Software

Software
Software Name	Purpose
xia2	data scaling
PHENIX	refinement
PDB_EXTRACT	data extraction
DIALS	data reduction
PHASER	phasing

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), 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 R01GM157729.