7B4C

Structural basis of reactivation of oncogenic p53 mutants by a small molecule: methylene quinuclidinone (MQ). Human p53DBD-R273C mutant bound to MQ: R273C-MQ (II)

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	EVAPORATION	6.1	292	0.2M Sodium Fluoride, 20% w/v PEG 3350

Crystal Properties
Matthews coefficient	Solvent content
2.32	46.87

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 68.881	α = 90
b = 71.083	β = 90.033
c = 84.923	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 6M		2017-03-02	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID23-1	0.97200	ESRF	ID23-1

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	Rrim I (All)	Rpim 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	1.709	50	98.4	0.082	0.09	0.036	6.1	6		87231

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Rrim I (All)	Rpim I (All)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.71	1.74	97		0.626	0.69	0.287	0.823		5.6

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 (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	4IBQ	1.71	42.75	82878	4332	98.25	0.1505	0.1488	0.1819	RANDOM	30.458

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]
-14.78		-9.96	25.33		-10.55

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	31.785
r_dihedral_angle_4_deg	15.996
r_dihedral_angle_3_deg	14.267
r_dihedral_angle_1_deg	7.208
r_angle_refined_deg	1.934
r_angle_other_deg	1.582
r_chiral_restr	0.101
r_bond_refined_d	0.015
r_gen_planes_refined	0.011
r_bond_other_d	0.003

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	31.785
r_dihedral_angle_4_deg	15.996
r_dihedral_angle_3_deg	14.267
r_dihedral_angle_1_deg	7.208
r_angle_refined_deg	1.934
r_angle_other_deg	1.582
r_chiral_restr	0.101
r_bond_refined_d	0.015
r_gen_planes_refined	0.011
r_bond_other_d	0.003
r_gen_planes_other	0.003

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	5917
Nucleic Acid Atoms
Solvent Atoms	548
Heterogen Atoms	104

Software

Software
Software Name	Purpose
HKL-2000	data reduction
HKL-2000	data scaling
PHASER	phasing
REFMAC	refinement
PDB_EXTRACT	data extraction

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.