Experiment: 7LT5

CamA Adenine Methyltransferase Complexed to Cognate Substrate DNA and Cofactor SAH

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	7LNJ

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	7.3	292	0.1 M Tris-HCl pH 7.3, 23% PEG 3350, 0.27 M Potassium citrate

Crystal Properties
Matthews coefficient	Solvent content
3.24	62.08

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 81.418	α = 90
b = 160.856	β = 90
c = 230.161	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	PIXEL	DECTRIS EIGER X 16M		2021-02-07	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 22-ID	1.00000	APS	22-ID

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	Rpim I (All)	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	2.54	45.1	88.8	0.179	0.058	10.7	9.1		88557			40.52

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Rpim I (All)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.54	2.64	83.1		1.498	0.478	0.564	1.4

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	Mean Isotropic B
X-RAY DIFFRACTION	FOURIER SYNTHESIS	FREE R-VALUE	7LNJ	2.54	45.1	1.34	88478	2000	88.47	0.1779	0.1771	0.178	0.2115	0.2123	49.84

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]

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	16.3812
f_angle_d	0.4912
f_chiral_restr	0.0406
f_plane_restr	0.0028
f_bond_d	0.0022

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	13895
Nucleic Acid Atoms	1686
Solvent Atoms	335
Heterogen Atoms	114

Software

Software
Software Name	Purpose
PHENIX	refinement
SERGUI	data collection
HKL-2000	data reduction
HKL-2000	data scaling
PHENIX	phasing