2C2L

Crystal structure of the CHIP U-box E3 ubiquitin ligase

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION	7.5	293	MCHIP WAS MIXED WITH HUMAN HSP90 C-TERMINAL PEPTIDE AT A 1:3 MOLAR RATIO, RESPECTIVELY, INCUBATED FOR 30 MIN AT 4C AND CONCENTRATED TO 10 MG/ML. INITIAL MULTIPLE CRYSTALS WERE GROWN BY VAPOUR DIFFUSION AT 20C AGAINST 30% W/V PEG4000, 100 MM TRIS [PH 7.5] AND 200 MM LITHIUM SULPHATE. SUBSEQUENT STREAK-SEEDING INTO SOLUTIONS OF 16% W/V PEG4000, 100 MM TRIS [PH 7.5] AND 400 MM LITHIUM SULPHATE PRODUCED SINGLE PLATES.

Crystal Properties
Matthews coefficient	Solvent content
4.4	71.5

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 76.042	α = 90
b = 204.406	β = 90.75
c = 144.709	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	MARRESEARCH		2005-03-17	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID23-1		ESRF	ID23-1

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	3.3	40	98.1	0.07	10	2.1		68272			84.6

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	3.3	3.47	98.1		0.33	2.7	2.1

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	IN-HOUSE MODEL	3.3	40	31916	1606	21.5	0.2475	0.2475	0.2859	RANDOM	80.1

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]
23.988		0.474	18.4		-42.388

RMS Deviations
Key	Refinement Restraint Deviation
c_angle_deg	1.22611
c_bond_d	0.010001
c_bond_d_na
c_bond_d_prot
c_angle_d
c_angle_d_na
c_angle_d_prot
c_angle_deg_na
c_angle_deg_prot
c_dihedral_angle_d
c_dihedral_angle_d_na
c_dihedral_angle_d_prot
c_improper_angle_d
c_improper_angle_d_na
c_improper_angle_d_prot
c_mcbond_it
c_mcangle_it
c_scbond_it
c_scangle_it

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	9472
Nucleic Acid Atoms
Solvent Atoms	10
Heterogen Atoms	39

Software

Software
Software Name	Purpose
CNS	refinement
MOSFLM	data reduction
SCALA	data scaling
PHASER	phasing