Experiment: 4TQS

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP		291	220 microM Dpo4, 264 microM primer-template DNA complex, 5 mM MgCl2, 1 mM dTTP, 20 mM Tris-HCl (pH 7.4), 60 mM NaCl, 2% glycerol (v/v), and 5 mM 2-mercaptoethanol were incubated at 37 C for 5 min. Droplets (a 1:1 mixture of Dpo4-DNA complex mixture and the reservoir solution, v/v) were equilibrated against a reservoir solution containing 0.1M Tris-HCl (pH 7.4), 15% polyethylene glycol 3350 (w/v), 0.1 M Ca(CH3COO)2, and 2% glycerol (v/v).

Crystal Properties
Matthews coefficient	Solvent content
2.5	50.81

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 52.12	α = 90
b = 184.242	β = 110.09
c = 52.124	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	110	CCD	MARMOSAIC 225 mm CCD		2014-03-28	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 21-ID-F	1.0	APS	21-ID-F

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	2.06	28.407	98.52				58860			20.37

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	2.06	2.1	98.5		3	3.4

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	Mean Isotropic B
X-RAY DIFFRACTION		FREE R-VALUE	2.06	28.407	1.39	55908	2717	98.52	0.2312	0.2282	0.2899	26.3748

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
f_dihedral_angle_d	19.73
f_angle_d	1.147
f_chiral_restr	0.044
f_bond_d	0.009
f_plane_restr	0.006

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	5221
Nucleic Acid Atoms	1044
Solvent Atoms	488
Heterogen Atoms	96

Software

Software
Software Name	Purpose
PHENIX	refinement
HKL-2000	data scaling
Coot	model building
MOLREP	phasing
PDB_EXTRACT	data extraction

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.