4XG6

Crystal structure of an inhibitor-bound Syk

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	8.5	278	10~20%(v/v) PEG3350, 100 mM Tris-HCl

Crystal Properties
Matthews coefficient	Solvent content
2.13	42.39

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 39.933	α = 90
b = 88.267	β = 91.37
c = 41.078	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 270		2010-07-29	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	PAL/PLS BEAMLINE 7A (6B, 6C1)	1.2398	PAL/PLS	7A (6B, 6C1)

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	2.4	50	92.7	33.21	7		10345

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.4	2.44

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	4XG2	2.4	44.13	9770	559	92.57	0.19175	0.1895	0.23015	RANDOM	42.939

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]
-0.31		-1.2	-2.14		2.51

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	38.606
r_dihedral_angle_3_deg	14.906
r_dihedral_angle_4_deg	14.654
r_dihedral_angle_1_deg	6.123
r_long_range_B_refined	5.265
r_long_range_B_other	5.251
r_mcangle_it	3.239
r_mcangle_other	3.238
r_scangle_other	3.049
r_mcbond_it	1.899
r_mcbond_other	1.894
r_scbond_it	1.722
r_scbond_other	1.721
r_angle_refined_deg	1.337
r_angle_other_deg	0.919
r_chiral_restr	0.072
r_bond_refined_d	0.008
r_gen_planes_refined	0.005
r_bond_other_d	0.003
r_gen_planes_other	0.002
r_nbd_refined
r_nbd_other
r_nbtor_refined
r_nbtor_other
r_xyhbond_nbd_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_refined
r_symmetry_vdw_other
r_symmetry_hbond_refined
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_scangle_it
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2200
Nucleic Acid Atoms
Solvent Atoms	64
Heterogen Atoms	27

Software

Software
Software Name	Purpose
REFMAC	refinement
HKL-2000	data reduction
HKL-2000	data scaling
MOLREP	phasing