3G89

T. thermophilus 16S rRNA G527 methyltransferase in complex with AdoMet and AMP in space group P61

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		8	277	10% (w/v) PEG8000, 100 mM imidazole (pH 8.0), microbatch technique under oil, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
2.7	54.49

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 77.212	α = 90
b = 77.212	β = 90
c = 167.807	γ = 120

Symmetry
Space Group	P 61

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100	IMAGE PLATE	MAR scanner 345 mm plate		2008-12-03		SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSLS BEAMLINE X4C		NSLS	X4C

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge 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	30	93.8	0.123		6.7		84726

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	1.5	1.55	99.4		0.381	2.16	3.4

Refinement

Statistics
Diffraction ID	Structure Solution 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	Mean Isotropic B
X-RAY DIFFRACTION	SAD	1.5	28.7	1.34	84494	4230	93.7	0.184	0.183	0.21	26.77

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]
-0.555			-0.555		1.11

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	17.825
f_angle_d	2.124
f_chiral_restr	0.129
f_bond_d	0.02
f_plane_restr	0.012

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3722
Nucleic Acid Atoms
Solvent Atoms	1026
Heterogen Atoms	100

Software

Software
Software Name	Purpose
PHENIX	refinement
PDB_EXTRACT	data extraction
HKL-2000	data reduction
HKL-2000	data scaling
REFMAC	refinement

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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 R01GM133198.