1RQP

Crystal structure and mechanism of a bacterial fluorinating enzyme

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	4.2	293	22% PEG 1000, 0.1 M phosphate-citrate, 0.2 M Li2SO4, pH 4.2, VAPOR DIFFUSION, SITTING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.33	47.25

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 75.908	α = 90
b = 130.302	β = 90
c = 183.435	γ = 90

Symmetry
Space Group	C 2 2 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 4	Toroidal Zerodur mirror	2002-12-13	M	MAD

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID14-2	0.933, 0.9786, 0.9783, 0.8984	ESRF	ID14-2

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	R Sym 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	1.8	65	94	0.11	0.12	2.8	10	84305	80164	1.33	1.5	14

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.8	1.847	70		0.48	0.5	1.5	6	1100

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Cut-off Sigma (I)	Cut-off Sigma (F)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MAD	THROUGHOUT	1.8	91.29	1.3	1.5	84305	76173	3991	95.09	0.17	0.16962	0.16712	0.21669	RANDOM	16.68

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]
0.89			-0.07		-0.82

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_1_deg	7.717
r_sphericity_free	4.131
r_scangle_it	3.719
r_scbond_it	2.456
r_sphericity_bonded	1.895
r_mcangle_it	1.712
r_angle_refined_deg	1.637
r_rigid_bond_restr	1.431
r_mcbond_it	1.111
r_angle_other_deg	0.985
r_symmetry_vdw_refined	0.33
r_symmetry_vdw_other	0.31
r_nbd_other	0.253
r_symmetry_hbond_refined	0.242
r_nbd_refined	0.214
r_xyhbond_nbd_refined	0.198
r_chiral_restr	0.098
r_nbtor_other	0.085
r_bond_refined_d	0.017
r_gen_planes_refined	0.008
r_gen_planes_other	0.006
r_bond_other_d	0.002

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	6660
Nucleic Acid Atoms
Solvent Atoms	719
Heterogen Atoms	81

Software

Software
Software Name	Purpose
REFMAC	refinement
MOSFLM	data reduction
CCP4	data scaling
SOLVE	phasing
RESOLVE	phasing