6USZ

Identification of the Clinical Development Candidate MRTX849, a Covalent KRASG12C Inhibitor for the Treatment of Cancer

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	4L8G	4L8G.pdb

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	4.6	293	23% PEG8K 0.1M NaCitrate pH 4.6 0.2M Amm Acetate

Crystal Properties
Matthews coefficient	Solvent content
2.34	47.53

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 39.769	α = 90
b = 50.9	β = 90
c = 89.649	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	PIXEL	DECTRIS PILATUS 2M	Osmic confocal mirrors	2017-05-24	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU FR-E	1.5418

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	2.03	30	93.8	0.117	11.16	6.46		12000

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Rpim I (All)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.03	2.08	92.4		0.249	0.115	6.1	6.6

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 (All)	R-Work	R-Free	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	4L8G.pdb	2.03	29.749	11476	567	93.248	0.136	0.1315	0.2257	16.29

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]
0.322			-0.666		0.344

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	34.848
r_dihedral_angle_4_deg	21.138
r_dihedral_angle_3_deg	15.42
r_dihedral_angle_1_deg	6.514
r_lrange_it	5.479
r_scangle_it	5.165
r_scbond_it	4.37
r_rigid_bond_restr	3.007
r_mcangle_it	2.825
r_mcbond_it	2.254
r_angle_refined_deg	1.967
r_nbtor_refined	0.318
r_nbd_refined	0.23
r_symmetry_nbd_refined	0.227
r_xyhbond_nbd_refined	0.17
r_symmetry_xyhbond_nbd_refined	0.163
r_chiral_restr	0.136
r_bond_refined_d	0.011
r_gen_planes_refined	0.008

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1354
Nucleic Acid Atoms
Solvent Atoms	120
Heterogen Atoms	70

Software

Software
Software Name	Purpose
REFMAC	refinement
iMOSFLM	data reduction
SCALEPACK	data scaling
PHASER	phasing