3KZ8

Diversity in DNA recognition by p53 revealed by crystal structures with Hoogsteen base pairs (p53-DNA complex 3)

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	2AC0	chain A of 2AC0

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.1	293	0.20M AMMONIUM IODIDE, 20% PEG 3350, pH 6.1, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.2	43.9

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 138.422	α = 90
b = 49.812	β = 93.48
c = 68.056	γ = 90

Symmetry
Space Group	C 1 2 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 QUANTUM 315r	SILICON TOROIDAL MIRROR COATED WITH RHODIUM	2008-11-07	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID23-1	0.97620	ESRF	ID23-1

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Sym 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	1.88	34.54	99.9	0.099	25.3	6.9		37958		-3	22.6

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.88	1.91	100		0.486	4.67	7.2

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	chain A of 2AC0	1.91	34.54	34235	1828	99.62	0.223	0.22059	0.26642	RANDOM	26.81

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]
-0.71		-0.45	0.5		0.16

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	32.386
r_dihedral_angle_3_deg	14.782
r_dihedral_angle_4_deg	13.662
r_dihedral_angle_1_deg	7.467
r_scangle_it	6.507
r_scbond_it	4.925
r_mcangle_it	3.89
r_angle_refined_deg	2.819
r_mcbond_it	2.447
r_chiral_restr	0.192
r_bond_refined_d	0.031
r_gen_planes_refined	0.016
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
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_mcbond_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2972
Nucleic Acid Atoms	410
Solvent Atoms	311
Heterogen Atoms	4

Software

Software
Software Name	Purpose
DNA	data collection
MOLREP	phasing
REFMAC	refinement
HKL-2000	data reduction
HKL-2000	data scaling