4M2Y

Structure of human DNA polymerase beta complexed with 8-BrG as the template base in a 1-nucleotide gapped DNA

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	3ISB	PDB ENTRY 3ISB

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	7.5	295	14-23% PEG 3340, 350mM sodium acetate in 50 mM imidazole, pH 7.5, VAPOR DIFFUSION, SITTING DROP, temperature 295K

Crystal Properties
Matthews coefficient	Solvent content
2.45	49.88

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 54.554	α = 90
b = 79.271	β = 105.48
c = 54.915	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	100	IMAGE PLATE	RIGAKU RAXIS IV++		2013-03-06	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU MICROMAX-007 HF	1.5418

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	2.27	20	97.1			20228	20228

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 3ISB	2.27	19.83	19695	1011	94.27	0.2151	0.212	0.2694	RANDOM	28.3099

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]
0.81		0.44	-0.49		-0.38

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	37.116
r_dihedral_angle_3_deg	16.947
r_dihedral_angle_4_deg	16.637
r_dihedral_angle_1_deg	5.83
r_mcangle_it	2.731
r_mcbond_it	1.756
r_mcbond_other	1.745
r_angle_refined_deg	1.651
r_angle_other_deg	1.148
r_chiral_restr	0.092

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	37.116
r_dihedral_angle_3_deg	16.947
r_dihedral_angle_4_deg	16.637
r_dihedral_angle_1_deg	5.83
r_mcangle_it	2.731
r_mcbond_it	1.756
r_mcbond_other	1.745
r_angle_refined_deg	1.651
r_angle_other_deg	1.148
r_chiral_restr	0.092
r_bond_refined_d	0.012
r_gen_planes_refined	0.008
r_bond_other_d	0.001
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2543
Nucleic Acid Atoms	633
Solvent Atoms	72
Heterogen Atoms	2

Software

Software
Software Name	Purpose
REFMAC	refinement
PDB_EXTRACT	data extraction
StructureStudio	data collection
HKL-2000	data reduction
HKL-2000	data scaling
MOLREP	phasing

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.