1L3T

Crystal Structure of Bacillus DNA Polymerase I Fragment product complex with 10 base pairs of duplex DNA following addition of a single dTTP residue

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	2BDP	PDB ENTRY 2BDP

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	5.8	290	Ammonium Sulfate, magnesium chloride, MPD, MES, pH 5.8, VAPOR DIFFUSION, HANGING DROP, temperature 290K

Crystal Properties
Matthews coefficient	Solvent content
2.91	57.77

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 87.53	α = 90
b = 93.356	β = 90
c = 106.229	γ = 90

Symmetry
Space Group	P 21 21 21

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	mirrors	2000-03-11	M	SINGLE WAVELENGTH
2	1	x-ray	100	CCD	ADSC QUANTUM 4		2000-03-11	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU RU200
2	SYNCHROTRON	NSLS BEAMLINE X12B	1.000034	NSLS	X12B

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	1.7	35.06	76	0.054	14	5.2	92625	73438		-3	14.2

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)
	1.7	1.76	73.9		0.261	1.4	2.1	7040

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	PDB ENTRY 2BDP	1.7	35.06	2	83796	72962	3636	75.9	0.2073	0.206	0.231	RANDOM	27.3

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]
6.19			-3.97		-2.22

RMS Deviations
Key	Refinement Restraint Deviation
c_dihedral_angle_d	22.4
c_scangle_it	1.59
c_angle_deg	1.2
c_mcangle_it	1.1
c_scbond_it	0.99
c_improper_angle_d	0.88
c_mcbond_it	0.65
c_bond_d	0.005
c_bond_d_na
c_bond_d_prot
c_angle_d
c_angle_d_na
c_angle_d_prot
c_angle_deg_na
c_angle_deg_prot
c_dihedral_angle_d_na
c_dihedral_angle_d_prot
c_improper_angle_d_na
c_improper_angle_d_prot

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4650
Nucleic Acid Atoms	445
Solvent Atoms	521
Heterogen Atoms	44

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
CNS	refinement
CNS	phasing