Experiment: 3MXN

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7.1	298	10 mM Hepes pH 7.1, 0.05 M NaSCN, 20% ethylene glycol, 2 mM DTT, 13% polyethylene glycol 3350, with benzamidine (1%) added to the drop, VAPOR DIFFUSION, HANGING DROP, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
2.06	40.23

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 42.096	α = 90
b = 42.223	β = 90
c = 152.24	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		CCD	MARMOSAIC 300 mm CCD		2009-07-18	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 21-ID-D	0.97933, 0.97856	APS	21-ID-D

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	1.55	29.8	96.97	0.115	25.7	10.8		39281

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	1.55	1.58	83		0.378	2.4	5.3

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	SAD	THROUGHOUT	1.55	29.8	40496	37250	1966	96.97	0.1972	0.1972	0.19548	0.23106	RANDOM	18.566

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]
-0.66			0.09		0.57

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	32.838
r_dihedral_angle_4_deg	17.879
r_dihedral_angle_3_deg	13.464
r_dihedral_angle_1_deg	5.467
r_scangle_it	3.181
r_scbond_it	1.877
r_angle_refined_deg	1.191
r_mcangle_it	1.168
r_mcbond_it	0.611
r_chiral_restr	0.078

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	32.838
r_dihedral_angle_4_deg	17.879
r_dihedral_angle_3_deg	13.464
r_dihedral_angle_1_deg	5.467
r_scangle_it	3.181
r_scbond_it	1.877
r_angle_refined_deg	1.191
r_mcangle_it	1.168
r_mcbond_it	0.611
r_chiral_restr	0.078
r_bond_refined_d	0.008
r_gen_planes_refined	0.005

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2182
Nucleic Acid Atoms
Solvent Atoms	251
Heterogen Atoms	9

Software

Software
Software Name	Purpose
MAR345	data collection
ARP/wARP	model building
REFMAC	refinement
HKL-2000	data reduction
HKL-2000	data scaling

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.