4LRL

Structure of an Enterococcus Faecalis HD-domain protein complexed with dGTP and dTTP

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	5	295	0.1 M MIB buffer (pH 5) and 25 % w/v PEG 1500, VAPOR DIFFUSION, SITTING DROP, temperature 295K

Crystal Properties
Matthews coefficient	Solvent content
2.3	46.6

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 91.541	α = 90
b = 144.625	β = 90
c = 155.56	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	CCD	MARMOSAIC 225 mm CCD	Beryllium Lenses, Diamond [111] Laue monochromator	2008-08-06	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 21-ID-F	0.97872	APS	21-ID-F

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	2.35	30	99.4	0.074	25.9	4.2	86389	86389		-3

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	2.35	2.43	94.9		0.43	2.1	2.6	8133

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	3IRH	2.35	29.86	81766	4304	99.45	0.18693	0.18437	0.23461	RANDOM	52.559

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]
-1.17			-0.82		2

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.975
r_dihedral_angle_4_deg	16.982
r_dihedral_angle_3_deg	15.041
r_dihedral_angle_1_deg	5.285
r_scangle_it	2.015
r_scbond_it	1.216
r_angle_refined_deg	1.153
r_mcangle_it	0.762
r_mcbond_it	0.4
r_chiral_restr	0.083
r_bond_refined_d	0.009
r_gen_planes_refined	0.004

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	14717
Nucleic Acid Atoms
Solvent Atoms	734
Heterogen Atoms	224

Software

Software
Software Name	Purpose
MAR345	data collection
PHASER	phasing
REFMAC	refinement
HKL-2000	data reduction
HKL-2000	data scaling