3GPM

Structure of the trimeric form of the E113G PCNA mutant protein

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	5.8	298	2.0 M ammonium sulfate and 0.1 M sodium citrate, pH 5.8, VAPOR DIFFUSION, HANGING DROP, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
5.25	76.59

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 122.093	α = 90
b = 122.093	β = 90
c = 122.093	γ = 90

Symmetry
Space Group	P 21 3

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	NOIR-1	saggital focusing mirrors	2008-01-08	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ALS BEAMLINE 4.2.2	0.97	ALS	4.2.2

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	3.8	29.62	99.57	0.072	17.9	10.56	6194	6146			92.254

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	3.8	3.903	99.57		0.294	0.294	6.8	9.84	439

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	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	1PLQ	3.8	29.62	0.02	6187	5860	282	99.22	0.27531	0.27331	0.31215	RANDOM	92.254

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]

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	40.99
r_dihedral_angle_4_deg	21.184
r_dihedral_angle_3_deg	21.069
r_dihedral_angle_1_deg	7.225
r_angle_refined_deg	1.376
r_scangle_it	1.32
r_mcangle_it	1.01
r_scbond_it	0.764
r_mcbond_it	0.555
r_nbtor_refined	0.314
r_nbd_refined	0.239
r_symmetry_vdw_refined	0.161
r_xyhbond_nbd_refined	0.154
r_chiral_restr	0.097
r_bond_refined_d	0.011
r_gen_planes_refined	0.003

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1990
Nucleic Acid Atoms
Solvent Atoms
Heterogen Atoms

Software

Software
Software Name	Purpose
REFMAC	refinement
d*TREK	data reduction
d*TREK	data scaling