4M8O

TERNARY COMPLEX OF DNA POLYMERASE EPSILON WITH AN INCOMING dATP

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7	291	20% PEG-3350, 50 mM Hepes-NaOH pH 7.0, 10 mM MgCl2, 400 mM LiAc, and 10 mM 2-aminoethanesulfonic acid (taurine) , VAPOR DIFFUSION, HANGING DROP, temperature 291K

Crystal Properties
Matthews coefficient	Solvent content
2.39	48.52

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 148.495	α = 90
b = 68.919	β = 109.5
c = 149.852	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	MARMOSAIC 225 mm CCD		2012-10-03	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID23-2	0.873	ESRF	ID23-2

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	2.2	47.05	99.9				69054

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	2.2	2.32	99.8		0.548	2.5	3.6

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	PDB ENTRY 3IAY	2.2	47.05	69054	69054	3667	99.9	0.183	0.18	0.237	RANDOM	38.06

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]
-0.02		-0.24	1.03		-0.73

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.084
r_dihedral_angle_3_deg	17.558
r_dihedral_angle_4_deg	16.981
r_long_range_B_refined	8.581
r_long_range_B_other	8.58
r_dihedral_angle_1_deg	6.904
r_scangle_other	6.071
r_mcangle_it	5.009
r_mcangle_other	5.009
r_scbond_it	3.908
r_scbond_other	3.908
r_mcbond_it	3.282
r_mcbond_other	3.28
r_angle_refined_deg	1.866
r_angle_other_deg	0.912
r_chiral_restr	0.105
r_bond_refined_d	0.016
r_gen_planes_refined	0.009
r_bond_other_d	0.001
r_gen_planes_other	0.001
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_scangle_it
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	9173
Nucleic Acid Atoms	535
Solvent Atoms	459
Heterogen Atoms	48

Software

Software
Software Name	Purpose
DNA	data collection
PHASER	phasing
REFMAC	refinement
XDS	data reduction
SCALA	data scaling