4GOM

Crystal Structure of E. coli DNA Adenine Methyltransferase in Complex with Aza-SAM

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7	293	100 mM MES, 1600 mM ammonium Sulfate, 14-18% glycerol, pH 7.0, Vapor diffusion, hanging drop, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
3.7	66.75

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 161.038	α = 90
b = 161.038	β = 90
c = 95.293	γ = 120

Symmetry
Space Group	P 31 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	CCD	ADSC QUANTUM 315r		2010-08-05	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	DIAMOND BEAMLINE I04-1	0.924530	Diamond	I04-1

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	2.496	38.685	99.9	0.075	17.9	6.2	49725	49725

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	2.5	2.56	99.9		0.74	0.74	1	6.3

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	MOLECULAR REPLACEMENT	THROUGHOUT	2.45	29.55	49725	2653	99.85	0.21051	0.20858	0.24781	RANDOM	42.795

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]
-0.07	-0.04		-0.07		0.11

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.818
r_dihedral_angle_4_deg	18.796
r_dihedral_angle_3_deg	15.279
r_dihedral_angle_1_deg	7.376
r_scangle_it	4.913
r_scbond_it	3.197
r_mcangle_it	2.186
r_angle_refined_deg	1.853
r_mcbond_it	1.18
r_chiral_restr	0.129
r_bond_refined_d	0.023
r_gen_planes_refined	0.011
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
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	5856
Nucleic Acid Atoms
Solvent Atoms	131
Heterogen Atoms	78

Software

Software
Software Name	Purpose
SCALA	data scaling
REFMAC	refinement
PDB_EXTRACT	data extraction