6UT0

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		293	32% PEG 4K 0.1M NaOAc (unbuffered) 8% 2-Propanol

Crystal Properties
Matthews coefficient	Solvent content
2.12	41.92

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 74.918	α = 90
b = 61.8	β = 111.37
c = 76.05	γ = 90

Symmetry
Space Group	P 1 21 1

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	2017-11-29	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	1.94	30	96.3	0.076	15.8	6.45		47734

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Rrim I (All)	Rpim I (All)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.94	1.99	92.8		0.21	0.235	0.102	5.7	5.4

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	1.94	28.321	46376	2375	96.318	0.177	0.1746	0.222	20.445

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]
-0.921		0.595	-0.122		0.441

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	33.299
r_dihedral_angle_4_deg	21.5
r_dihedral_angle_3_deg	14.629
r_dihedral_angle_other_3_deg	11.309
r_dihedral_angle_1_deg	6.558
r_lrange_it	5.186
r_lrange_other	5.12
r_scangle_other	3.595
r_scangle_it	3.541
r_mcangle_it	2.453
r_mcangle_other	2.453
r_scbond_other	2.279
r_scbond_it	2.26
r_angle_refined_deg	1.787
r_mcbond_it	1.641
r_mcbond_other	1.639
r_angle_other_deg	1.36
r_nbd_other	0.227
r_nbd_refined	0.215
r_symmetry_nbd_refined	0.202
r_symmetry_xyhbond_nbd_refined	0.188
r_symmetry_nbd_other	0.18
r_nbtor_refined	0.174
r_xyhbond_nbd_refined	0.164
r_symmetry_nbtor_other	0.077
r_chiral_restr	0.072
r_metal_ion_refined	0.018
r_bond_refined_d	0.01
r_gen_planes_refined	0.008
r_xyhbond_nbd_other	0.003
r_bond_other_d	0.001
r_gen_planes_other	0.001
r_symmetry_xyhbond_nbd_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	5413
Nucleic Acid Atoms
Solvent Atoms	446
Heterogen Atoms	288

Software

Software
Software Name	Purpose
REFMAC	refinement
iMOSFLM	data reduction
SCALA	data scaling
PHENIX	phasing