Experiment: 3S9K

Crystal structure of the Itk SH2 domain.

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	5.3	298	0.1 M Sodium citrate, 10 % iso-propanol, 20 % w/v PEG 4000, 2 mM DTT with 12.5 mM Glycyl-glycyl-glycine as an additive, pH 5.3, VAPOR DIFFUSION, HANGING DROP, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
2.36	47.95

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 53.64	α = 90
b = 57.36	β = 90
c = 83.19	γ = 90

Symmetry
Space Group	I 2 2 2

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	NOIR-1		2005-05-24	M	SINGLE WAVELENGTH
2	1	x-ray	100	CCD	NOIR-1		2008-05-16	M	MAD

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ALS BEAMLINE 4.2.2	1.2398	ALS	4.2.2
2	SYNCHROTRON	ALS BEAMLINE 4.2.2	0.979, 0.9793, 0.9640	ALS	4.2.2

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	2.35	47.246	97.8	0.094	10.3	5.34		5487

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	2.35	2.43	93.1		0.347	4.1	4.42	512

Refinement

Statistics
Diffraction ID	Structure Solution Method	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	Mean Isotropic B
X-RAY DIFFRACTION		2.354	47.223	1.39	4777	457	85.41	0.2375	0.2326	0.2237	0.2827	0.2735	50.4871

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]
8.9612			4.8007		9.4175

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	19.259
f_angle_d	1.263
f_chiral_restr	0.082
f_bond_d	0.009
f_plane_restr	0.007

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	930
Nucleic Acid Atoms
Solvent Atoms	17
Heterogen Atoms	13

Software

Software
Software Name	Purpose
d*TREK	data scaling
d*TREK	data reduction
PHASER	phasing
PHENIX	refinement
PDB_EXTRACT	data extraction
CrystalClear	data collection
SOLVE	phasing