3T7V

Crystal structure of methylornithine synthase (PylB)

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	7.5	293	100 mM Tris-hydrochloride, 200 mM MgCl2, 25% PEG3350, pH 7.5, VAPOR DIFFUSION, SITTING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.24	45.17

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 77.02	α = 90
b = 77.02	β = 90
c = 104.95	γ = 120

Symmetry
Space Group	P 32 2 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	PIXEL	PSI PILATUS 6M		2011-07-10	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SLS BEAMLINE X06DA	1.0	SLS	X06DA

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	1.5	20	99.8	0.071	0.079	12.6	5.4	58172	58074	2.5	2.5

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	1.5	1.6	99.9		0.539	0.525	3.2	5.3

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	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	1.5	10	57839	55170	2904	99.83	0.13049	0.12865	0.16504	RANDOM	25.247

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]
0.01	0.01		0.01		-0.02

RMS Deviations
Key	Refinement Restraint Deviation
r_sphericity_free	36.259
r_dihedral_angle_2_deg	35.165
r_dihedral_angle_4_deg	15.308
r_sphericity_bonded	14.847
r_dihedral_angle_3_deg	12.872
r_rigid_bond_restr	8.312
r_dihedral_angle_1_deg	5.96
r_scangle_it	4.963
r_scbond_it	3.188
r_angle_refined_deg	2.576
r_mcangle_it	2.529
r_mcbond_it	1.418
r_chiral_restr	0.289
r_bond_refined_d	0.029
r_gen_planes_refined	0.013
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
r_nbd_refined
r_nbd_other
r_nbtor_refined
r_nbtor_other
r_xyhbond_nbd_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_refined
r_symmetry_vdw_other
r_symmetry_hbond_refined
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2699
Nucleic Acid Atoms
Solvent Atoms	315
Heterogen Atoms	45

Software

Software
Software Name	Purpose
XDS	data scaling
REFMAC	refinement
XDS	data reduction
XSCALE	data scaling
REFMAC	phasing