Experiment: 3FRI

Structure of the 16S rRNA methylase RmtB, I222

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	3B89	PDB ENTRY 3B89

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.5	277	20% PEG 3350, 50mM Bis-Tris pH6.5, VAPOR DIFFUSION, HANGING DROP, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
2.36	47.79

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 56.48	α = 90
b = 94.46	β = 90
c = 98.52	γ = 90

Symmetry
Space Group	I 2 2 2

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	150	CCD	ADSC QUANTUM 315		2007-05-20	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID23-1	0.98	ESRF	ID23-1

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	1.8	48.45	99.1	0.056	0.056	17.33	3.58	24838	24613			19.2

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)
	1.8	1.9	99.4		0.394	0.394	3.21	3.62	3657

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (All)	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)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 3B89	1.8	34.55	24838	23967	1405	96.5	0.2125	0.2125	0.2126	0.2329	0.2325	random	22.9

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]
-2.873			-3.841		6.714

RMS Deviations
Key	Refinement Restraint Deviation
c_scangle_it	3.038
c_mcangle_it	2.236
c_scbond_it	2.144
c_mcbond_it	1.391
c_angle_deg	1.375
c_bond_d	0.0054

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1856
Nucleic Acid Atoms
Solvent Atoms	244
Heterogen Atoms	26

Software

Software
Software Name	Purpose
ADSC	data collection
PHASER	phasing
CNS	refinement
XDS	data reduction
XSCALE	data scaling