3ZS5

Structural basis for kinase selectivity of three clinical p38alpha inhibitors

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.5		HANGING DROP, ROOM TEMP, 20 MM HEPES PH7.1, 50 MM NACL, 10 MM DTT, 5% GLYCEROL, 0.1 G/L METHIONINE, 28% PEG 4K,0.1 M MES PH=6.5, 50 MM N-OCTYL-BETAGLUCOSIDE. CRYOPROTECTANT 28% PEG 4K, 0.1M MES PH5.9, 50 MM N-OCTYL-BETAGLUCOSIDE, 20% ETHYLENE GLYCOL.

Crystal Properties
Matthews coefficient	Solvent content
2.33	47

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 67.492	α = 90
b = 70.036	β = 90
c = 75.01	γ = 90

Symmetry
Space Group	P 21 21 21

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 4		2005-09-28	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID14-2		ESRF	ID14-2

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	1.6	40.7	93.8	0.08	8	6.9		44440

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	1.6	1.69	75.3		0.88	2.2	5.9

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	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	1.6	51.16	42175	2232	93.34	0.18586	0.18433	0.21527	RANDOM	20.088

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]
0.18			-0.14		-0.04

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	33.472
r_dihedral_angle_4_deg	15.275
r_dihedral_angle_3_deg	12.879
r_dihedral_angle_1_deg	6.366
r_scangle_it	2.776
r_mcangle_it	2.367
r_scbond_it	1.768
r_mcbond_it	1.458
r_angle_refined_deg	1.271
r_angle_other_deg	0.844
r_mcbond_other	0.363
r_chiral_restr	0.078
r_bond_refined_d	0.011
r_gen_planes_refined	0.006
r_bond_other_d	0.002
r_gen_planes_other	0.001
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_mcangle_other
r_scbond_other
r_scangle_other
r_long_range_B_refined
r_long_range_B_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2740
Nucleic Acid Atoms
Solvent Atoms	291
Heterogen Atoms	75

Software

Software
Software Name	Purpose
REFMAC	refinement
MOSFLM	data reduction
SCALA	data scaling
REFMAC	phasing