Experiment: 2XWR

Crystal structure of the DNA-binding domain of human p53 with extended N terminus

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP		290	SITTING DROP VAPOR DIFFUSION AT 17 DEGREE C. PROTEIN SOLUTION: 5.4 MG/ML IN 25 MM SODIUM PHOSPHATE, PH 7.2, 220 MM NACL, AND 5 MM DTT. RESERVOIR SOLUTION: 100 MM BIS-TRIS, PH 5.5, 23% PEG 3350, 200 MM AMMONIUM SULFATE.

Crystal Properties
Matthews coefficient	Solvent content
2.2	45

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 51.5	α = 90
b = 68.45	β = 99.46
c = 58.89	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	CCD	ADSC CCD		2010-05-15	M	SINGLE WAVELENGTH

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

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	1.68	44.3	99.5	0.06	13.5	3.4		46147		2	15.98

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.68	1.77	99.4		0.23	4.5	3.3

Refinement

Statistics
Diffraction ID	Structure Solution Method	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	1.68	24.818	45797	2273	99.5	0.1749	0.1731	0.1721	0.2092	0.1728	20.8

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]
2.0332		9.0697	-4.3682		4.9684

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	11.737
f_angle_d	1.081
f_chiral_restr	0.079
f_bond_d	0.006
f_plane_restr	0.005

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3133
Nucleic Acid Atoms
Solvent Atoms	512
Heterogen Atoms	2

Software

Software
Software Name	Purpose
PHENIX	refinement
PHASER	phasing