3L4H

Helical box domain and second WW domain of the human E3 ubiquitin-protein ligase HECW1

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	8	291.1	equal volumes of protein (10 mg/ml) [containing 0.1 MM actetic acid PH 3.0] was mixed with crystallization buffer (1.0 M sodium citrate, 0.1 MM immidazole PH 8.0), along with trypsin at a concentration of 1 mg trypsin/500 mg protein. cryoprotected with 15% glycerol, VAPOR DIFFUSION, SITTING DROP, temperature 291.1K

Crystal Properties
Matthews coefficient	Solvent content
1.75	29.83

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 26.079	α = 90
b = 44.082	β = 92.54
c = 39.61	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	CCD	ADSC QUANTUM 315	MIRROR	2009-12-16	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 19-ID	0.97899	APS	19-ID

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	1.8	30	99.8	0.066	31.0366	4.9	8513	8513		-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)
	1.8	1.83	99.8		0.256	5.462	4.2	412

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-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	SAD	THROUGHOUT	1.8	29.45	8513	7986	413	99.79	0.15228	0.14995	0.19956	RANDOM	24.812

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]
0.02		-0.01	-0.02

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.195
r_dihedral_angle_4_deg	15.024
r_dihedral_angle_3_deg	14.804
r_dihedral_angle_1_deg	6.205
r_scangle_it	3.64
r_scbond_it	2.35
r_angle_refined_deg	1.546
r_mcangle_it	1.263
r_mcbond_it	0.738
r_chiral_restr	0.106

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.195
r_dihedral_angle_4_deg	15.024
r_dihedral_angle_3_deg	14.804
r_dihedral_angle_1_deg	6.205
r_scangle_it	3.64
r_scbond_it	2.35
r_angle_refined_deg	1.546
r_mcangle_it	1.263
r_mcbond_it	0.738
r_chiral_restr	0.106
r_bond_refined_d	0.015
r_gen_planes_refined	0.008

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	902
Nucleic Acid Atoms
Solvent Atoms	72
Heterogen Atoms	4

Software

Software
Software Name	Purpose
HKL-3000	data collection
SOLVE	phasing
REFMAC	refinement
HKL-2000	data reduction
HKL-2000	data scaling

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 R01GM133198.