7L9U

Crystal Structure of S-adenosylmethionine-dependent methyltransferase UmaA from Mycobacterium tuberculosis in complex with a 12-mer PEG

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	8.5	287	Microlytics MCSG1 screen, condition C9: 32% (w/V) PEG 4000, 800mM lithium chloride, 100mM Tris Base/ HCl pH 8.50: MytuD.00149.b.B1.PW38903, tray 318922c9, cryo: 15% EG, puck ynm8-4. For phasing, a crystal from the same screen and well set up with 5mM AMPPNP/MgCl2 was incubated for 20sec in a solution of 10% saturated NaI in EG + 90% reservoir, followed by a 20sec soak in 20% of saturated NaI in EG + 80% reservoir: tray 318925c9, cryo: 20% EG + NaI: puck zxc1-11. Anomalous data were collected at the home source at CuKalpha radiation.

Crystal Properties
Matthews coefficient	Solvent content
2.23	45

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 103.02	α = 90
b = 103.02	β = 90
c = 49.76	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	CCD	RAYONIX MX-300	Beryllium Lenses	2020-12-10	M	SINGLE WAVELENGTH
2	1	x-ray		CCD	RIGAKU SATURN 944+		2020-12-10	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 21-ID-F	0.97872	APS	21-ID-F
2	ROTATING ANODE	RIGAKU FR-E+ SUPERBRIGHT	1.5418

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	Rrim I (All)	CC (Half)	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	1.55	50	99.8	0.034	0.037	1	27.33	7.337		44265			31.363

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Rrim I (All)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.55	1.59	100		0.606	0.653	0.853	2.98	7.097

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	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	SAD	FREE R-VALUE	1.55	43.46	1.36	44253	2055	99.81	0.158	0.1571	0.1753	0	30.89

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	15.7391
f_angle_d	0.978
f_chiral_restr	0.0554
f_bond_d	0.0089
f_plane_restr	0.0081

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2250
Nucleic Acid Atoms
Solvent Atoms	311
Heterogen Atoms	50

Software

Software
Software Name	Purpose
XDS	data reduction
XSCALE	data scaling
PHENIX	refinement
PDB_EXTRACT	data extraction
PHASER	phasing
PARROT	phasing
ARP/wARP	model building
Coot	model building

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.