4X3G

Crystal structure of SIAH1 SINA domain in complex with a USP19 peptide

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	9	298	SIAH1 AT 17.6 MG/ML WAS MIXED WITH A TWO-FOLD EXCESS OF USP19 PEPTIDE ON ICE FOR 30 MIN. BEFORE SETTING UP FOR CRYSTALLIZATION. CRYSTALS WERE GROWN AT 298K USING THE SITTING DROP METHOD BY MIXING 0.5 UL PROTEIN:PEPTIDE MIX WITH 0.5 UL WELL SOLUTION CONSISTING OF 20% PEG6000, 0.1 M BICINE PH 9.0. THE CRYSTALS WERE CRYOPROTECTED BY FIRST IMMERSION IN WELL SOLUTION MIXED WITH 15% (FINAL) ETHYLENE GLYCOL, THEN IMMERSION IN N-PARATONE.

Crystal Properties
Matthews coefficient	Solvent content
2.28	46.06

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 41.343	α = 90
b = 88.092	β = 103.24
c = 59.59	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		2014-07-17	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 19-ID	0.97918	APS	19-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	2.33	50	90.9	0.089	6.2	2.3		15818			67.92

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	2.33	2.37	58.9		0.44		1.5	513

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	4I7B	2.34	48.45	15802	780	89.68	0.2233	0.2218	0.2512	RANDOM	82.59

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]
4.7768		-1.8572	-19.3544		14.5776

RMS Deviations
Key	Refinement Restraint Deviation
t_other_torsion	18.94
t_omega_torsion	1.97
t_angle_deg	0.95
t_bond_d	0.008
t_dihedral_angle_d
t_trig_c_planes
t_gen_planes
t_it
t_nbd
t_improper_torsion
t_pseud_angle
t_chiral_improper_torsion
t_sum_occupancies
t_utility_distance
t_utility_angle
t_utility_torsion
t_ideal_dist_contact

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3079
Nucleic Acid Atoms
Solvent Atoms	58
Heterogen Atoms	4

Software

Software
Software Name	Purpose
HKL-3000	data reduction
BUSTER-TNT	refinement
PDB_EXTRACT	data extraction
HKL-3000	data scaling
MOLREP	phasing