4EWQ

Human p38 alpha MAPK in complex with a pyridazine based inhibitor

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	3HVC	PDB ENTRY 3HVC

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	5.5	295	0.1M Ammonium Acetate, 0.1< BisTris (pH 5.5), 17% PEG 10,000, VAPOR DIFFUSION, SITTING DROP, temperature 295K

Crystal Properties
Matthews coefficient	Solvent content
2.11	41.81

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 65.257	α = 90
b = 74.276	β = 90
c = 76.815	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	MARMOSAIC 225 mm CCD	DIAMOND	2011-08-13	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 21-ID-F	0.97872	APS	21-ID-F

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	2.1	30	100	0.064	23.8	4.9	22455	22455	1	1

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	2.1	2.14	100		0.57	2.7	4.9

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	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	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 3HVC	2.1	29.76	22455	21240	1146	99.95	0.18214	0.17964	0.22919	RANDOM	35.589

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]
-1.29			-1.92		3.22

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	31.438
r_dihedral_angle_4_deg	14.455
r_dihedral_angle_3_deg	11.501
r_scangle_it	4.796
r_scbond_it	3.194
r_dihedral_angle_1_deg	2.86
r_mcangle_it	2.083
r_angle_refined_deg	1.439
r_mcbond_it	1.213
r_angle_other_deg	0.821
r_mcbond_other	0.343
r_chiral_restr	0.085
r_bond_refined_d	0.012
r_gen_planes_refined	0.006
r_bond_other_d	0.001
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_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2808
Nucleic Acid Atoms
Solvent Atoms	120
Heterogen Atoms	101

Software

Software
Software Name	Purpose
HKL-2000	data collection
Coot	model building
MOLREP	phasing
REFMAC	refinement
HKL-2000	data reduction
HKL-2000	data scaling