4OX9

Crystal structure of the aminoglycoside resistance methyltransferase NpmA bound to the 30S ribosomal subunit

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.5	277	14% MPD, 0.2 M KCL , 75 mM NH4Cl, 15 mM MgCl2 , 0.1M MES
2	VAPOR DIFFUSION, HANGING DROP	7	277	14% MPD, 0.2 M KCL , 75 mM NH4Cl, 15 mM MgCl2 , 0.1M MES

Crystal Properties
Matthews coefficient	Solvent content
4.55	72.98
4.55	72.98

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 403.52	α = 90
b = 403.52	β = 90
c = 176.61	γ = 90

Symmetry
Space Group	P 41 21 2

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 PILATUS 6M		2013-06-26	M	SINGLE WAVELENGTH
2	2	100

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 24-ID-C	0.97	APS	24-ID-C

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	Rrim 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	3.8	50	99.8	0.12	0.128	13.22	8.89		142385		-3	80

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Rrim I (All)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	3.8	3.9	99.9		1.438	1.525	1.43

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	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	FOURIER SYNTHESIS	FREE R-VALUE	PDB ENTRY 1J5E	3.8035	49.715	1.34	141742	7034	99.66	0.234	0.2328	0.2568	Inherited from 1j5e

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	17.371
f_angle_d	1.292
f_chiral_restr	0.106
f_plane_restr	0.015
f_bond_d	0.008

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	20984
Nucleic Acid Atoms	32394
Solvent Atoms
Heterogen Atoms	149

Software

Software
Software Name	Purpose
XSCALE	data scaling
PHENIX	refinement
PDB_EXTRACT	data extraction
XDS	data reduction

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 R01GM133198.