1VL4

CRYSTAL STRUCTURE OF A PUTATIVE MODULATOR OF A DNA GYRASE (TM0727) FROM THERMOTOGA MARITIMA MSB8 AT 1.95 A RESOLUTION

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION,SITTING DROP,NANODROP	7	277	TRIS pH 7, 0.5M (NH4)2SO4, 10% Glycerol, 30% PEG-600 , pH 7.0, VAPOR DIFFUSION,SITTING DROP,NANODROP, temperature 277K
2	VAPOR DIFFUSION,SITTING DROP,NANODROP	7	277	0.5M (NH4)2SO4, 10% Glycerol, 30% PEG-600, TRIS pH 7, pH 7.0, VAPOR DIFFUSION,SITTING DROP,NANODROP, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
2.59	52.46
2.57	51.71

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 80.367	α = 90
b = 106.637	β = 90
c = 120.382	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	ADSC QUANTUM 315		2004-04-15	M	SINGLE WAVELENGTH
2	1	x-ray	100	CCD	ADSC QUANTUM 315	flat mirror	2004-05-24	M	MAD
1,2	1

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL9-2		SSRL	BL9-2
2	SYNCHROTRON	SSRL BEAMLINE BL11-1	0.979264,0.979562,0.898404	SSRL	BL11-1

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	1.95	48.75	94.4	0.092	11.5	3.8		71567			32.71

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	1.95	2	56.3		0.458	1.7	2.7	3069

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	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	MAD	THROUGHOUT	1.95	48.75	67979	3584	94.05	0.17628	0.17389	0.22099	RANDOM	16.661

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]
-0.34			0.41		-0.07

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.814
r_dihedral_angle_4_deg	17.466
r_dihedral_angle_3_deg	14.752
r_scangle_it	8.817
r_dihedral_angle_1_deg	6.705
r_scbond_it	6.278
r_mcangle_it	3.624
r_mcbond_it	2.706
r_angle_refined_deg	1.669
r_angle_other_deg	0.833
r_mcbond_other	0.775
r_nbd_refined	0.235
r_symmetry_vdw_other	0.232
r_symmetry_vdw_refined	0.181
r_nbd_other	0.18
r_nbtor_refined	0.177
r_xyhbond_nbd_refined	0.17
r_symmetry_hbond_refined	0.151
r_chiral_restr	0.098
r_nbtor_other	0.089
r_bond_refined_d	0.018
r_gen_planes_refined	0.007
r_gen_planes_other	0.002
r_bond_other_d	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	6596
Nucleic Acid Atoms
Solvent Atoms	493
Heterogen Atoms

Software

Software
Software Name	Purpose
MOSFLM	data reduction
SCALA	data scaling
autoSHARP	phasing
SOLOMON	phasing
REFMAC	refinement
CCP4	data scaling