7PQV

MEK1 IN COMPLEX WITH COMPOUND 7

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	BATCH MODE		310	The purified protein was used in crystallisation trials employing both, a standard screen with approximately 1200 different conditions, as well as crystallisation conditions identified using literature data. Condi- tions initially obtained have been optimised using standard strategies, systematically varying parameters critically influencing crystallisation, such as temperature, protein concentration, drop ratio, and others. These conditions were also refined by systematically varying pH or precipitant concentrations.

Crystal Properties
Matthews coefficient	Solvent content
1.24	54

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 77.158	α = 90
b = 77.158	β = 90
c = 222.649	γ = 120

Symmetry
Space Group	P 61 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	PIXEL	DECTRIS PILATUS 6M		2011-05-02	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SLS BEAMLINE X06SA	0.97980	SLS	X06SA

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Sym I (Observed)	Rrim I (All)	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	2.13	66.82	97.2	0.075	0.081	14.66	5.7		22886

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R-Sym I (Observed)	Rrim I (All)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.13	2.3	95.6		0.44	0.479	3.07	5.9

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	NONE	2.13	66.82	20635	1614	97.25	0.2389	0.2353	0.2869	RANDOM	34.619

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]
2.7	1.35		2.7		-4.06

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	31.558
r_dihedral_angle_4_deg	13.228
r_dihedral_angle_3_deg	11.468
r_dihedral_angle_1_deg	5.167
r_angle_refined_deg	1.077
r_angle_other_deg	0.897
r_symmetry_vdw_refined	0.153
r_nbtor_refined	0.149
r_nbd_refined	0.146
r_nbd_other	0.123
r_symmetry_vdw_other	0.093
r_xyhbond_nbd_refined	0.082
r_nbtor_other	0.072
r_chiral_restr	0.061
r_metal_ion_refined	0.059
r_symmetry_hbond_refined	0.045
r_symmetry_metal_ion_refined	0.022
r_bond_refined_d	0.009
r_bond_other_d	0.002
r_gen_planes_refined	0.002
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2441
Nucleic Acid Atoms
Solvent Atoms	190
Heterogen Atoms	32

Software

Software
Software Name	Purpose
XDS	data reduction
XSCALE	data scaling
REFMAC	refinement
PDB_EXTRACT	data extraction