2B3G

p53N (fragment 33-60) bound to RPA70N

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		7.9	298	Na3 Citrate, Hepes, pH 7.9, VAPOR DIFFUSION, SITTING DROP, temperature 298K, pH 7.90

Crystal Properties
Matthews coefficient	Solvent content
1.96	37.3

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 49.46	α = 90
b = 50.38	β = 90
c = 52.32	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		IMAGE PLATE	RIGAKU RAXIS IV	RIGAKU/MSC CONFOCAL MULTILYER OPTICS	2004-03-10	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU RU300

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	1.6	20	98.2	0.046	32.5	4.5		17517		2

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	1.6	1.66	83.4

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (All)	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	2B29	1.6	20	16581	16581	893	98.2	0.205	0.204	0.239	RANDOM	30.26

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]
-0.26			-0.91		1.17

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_1_deg	5.872
r_scangle_it	5.508
r_scbond_it	3.17
r_mcangle_it	2.248
r_angle_refined_deg	1.755
r_mcbond_it	1.243
r_angle_other_deg	0.917
r_symmetry_vdw_other	0.32
r_nbd_other	0.257
r_nbd_refined	0.25
r_symmetry_hbond_refined	0.246
r_xyhbond_nbd_refined	0.202
r_symmetry_vdw_refined	0.113
r_chiral_restr	0.107
r_nbtor_other	0.087
r_bond_refined_d	0.018
r_gen_planes_refined	0.007
r_bond_other_d	0.002
r_gen_planes_other	0.002
r_dihedral_angle_2_deg
r_dihedral_angle_3_deg
r_dihedral_angle_4_deg
r_nbtor_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
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	1092
Nucleic Acid Atoms
Solvent Atoms	129
Heterogen Atoms

Software

Software
Software Name	Purpose
REFMAC	refinement
DENZO	data reduction
SCALEPACK	data scaling
MOLREP	phasing