6H46

Human KRAS in complex with darpin K13

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP		293	0.5-1.0M lithium sulfate 0.5-1.0M ammonium sulfate 100mM tri-sodium citrate pH5.5

Crystal Properties
Matthews coefficient	Solvent content
2.84	56.62

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 79.295	α = 90
b = 79.295	β = 90
c = 130.025	γ = 90

Symmetry
Space Group	P 43 21 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-F		2014-05-21	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	DIAMOND BEAMLINE I04-1	0.976	Diamond	I04-1

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	Rpim I (All)	CC (Half)	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	2.22	51.5	99.9	0.096	0.039	0.999	20.9	13.1		21240

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Rpim I (All)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.22	2.28	99.2		0.653	0.277	0.885	0.885	12.1

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	2.22	23.59	20043	1046	99.47	0.18545	0.18313	0.23039	RANDOM	34.531

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]
-0.01			-0.01		0.02

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.204
r_dihedral_angle_4_deg	14.24
r_dihedral_angle_3_deg	13.027
r_dihedral_angle_1_deg	5.348
r_long_range_B_refined	4.281
r_long_range_B_other	4.179
r_angle_refined_deg	1.294
r_mcangle_it	0.997
r_mcangle_other	0.997
r_angle_other_deg	0.939
r_scangle_other	0.914
r_mcbond_it	0.557
r_mcbond_other	0.549
r_scbond_it	0.524
r_scbond_other	0.524
r_chiral_restr	0.07
r_bond_refined_d	0.009
r_gen_planes_refined	0.004
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_scangle_it
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2507
Nucleic Acid Atoms
Solvent Atoms	224
Heterogen Atoms	38

Software

Software
Software Name	Purpose
REFMAC	refinement
xia2	data reduction
Aimless	data scaling
PHASER	phasing