2IMW

Mechanism of Template-Independent Nucleotide Incorporation Catalyzed by a Template-Dependent DNA Polymerase

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7	298	10% PEG3350, 0.1 M Calcium acetate, 0.1 M hepes pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
2.69	54.32

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 98.057	α = 90
b = 101.857	β = 90
c = 52.38	γ = 90

Symmetry
Space Group	P 21 21 2

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	173	IMAGE PLATE	RIGAKU RAXIS IV	mirrors	2002-07-31	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU RU200	1.5418

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge 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	2.05	30	97.5	0.063	16.7			32881

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	2.05	2.09	93.7		0.34			1570

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	PDB Entry: 1JX4	2.05	26.73	32833	954	100	0.232	0.23	0.284	RANDOM	45.315

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]
2.66			-1.89		-0.76

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	32.88
r_dihedral_angle_3_deg	14.592
r_dihedral_angle_4_deg	12.457
r_dihedral_angle_1_deg	4.618
r_scangle_it	3.114
r_scbond_it	2.5
r_mcangle_it	1.372
r_angle_refined_deg	1.303
r_mcbond_it	1.231
r_nbtor_refined	0.306

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	32.88
r_dihedral_angle_3_deg	14.592
r_dihedral_angle_4_deg	12.457
r_dihedral_angle_1_deg	4.618
r_scangle_it	3.114
r_scbond_it	2.5
r_mcangle_it	1.372
r_angle_refined_deg	1.303
r_mcbond_it	1.231
r_nbtor_refined	0.306
r_nbd_refined	0.223
r_symmetry_hbond_refined	0.207
r_xyhbond_nbd_refined	0.176
r_symmetry_vdw_refined	0.167
r_metal_ion_refined	0.148
r_chiral_restr	0.076
r_bond_refined_d	0.011
r_gen_planes_refined	0.004

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2788
Nucleic Acid Atoms	568
Solvent Atoms	240
Heterogen Atoms	55

Software

Software
Software Name	Purpose
REFMAC	refinement
SCALEPACK	data scaling
CNS	refinement
DENZO	data reduction
PDB_EXTRACT	data extraction
HKL-2000	data collection
CNS	phasing

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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 R01GM133198.