5UOJ

THE STRUCTURE OF THE MAP KINASE P38 AT 2.1 ANGSTROMS RESOLUTION

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1ERK

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP		289.15	18% polyethylene glycol (PEG) 8000, 0.2 M Mg(OAc)2, 0.1 M Hepes, pH 7.0

Crystal Properties
Matthews coefficient	Solvent content
2.92	58

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 45.756	α = 90
b = 84.928	β = 90
c = 123.911	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	IMAGE PLATE	MAR scanner 345 mm plate		1996-01-11	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSLS BEAMLINE X12C	1.0	NSLS	X12C

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	37.3	86	0.042	20	8.1		25393

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	2.16	65.6		0.242	5.3

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	1ERK	2.1	70.05	24191	1296	85.92	0.15674	0.15373	0.2142	RANDOM	33.292

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]
0.24			-0.29		0.05

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	34.782
r_dihedral_angle_4_deg	18.84
r_dihedral_angle_3_deg	13.81
r_long_range_B_refined	8.544
r_long_range_B_other	8.472
r_dihedral_angle_1_deg	6.882
r_scangle_other	6.01
r_mcangle_it	4.685
r_mcangle_other	4.685
r_scbond_it	3.808
r_scbond_other	3.807
r_mcbond_it	3.189
r_mcbond_other	3.18
r_angle_refined_deg	1.879
r_angle_other_deg	1.045
r_chiral_restr	0.115
r_bond_refined_d	0.018
r_gen_planes_refined	0.01
r_bond_other_d	0.002
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	2763
Nucleic Acid Atoms
Solvent Atoms	375
Heterogen Atoms

Software

Software
Software Name	Purpose
REFMAC	refinement
SCALEPACK	data scaling
HKL-2000	data scaling