Experiment: 3EMS

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	4.5	298	1.5M NaCl, 0.5M Arg, pH 4.5, VAPOR DIFFUSION, HANGING DROP, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
2	38.44

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 78.357	α = 90
b = 78.357	β = 90
c = 37.312	γ = 90

Symmetry
Space Group	P 43 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	IMAGE PLATE	RIGAKU RAXIS	RIGAKU RAXIS IV	2008-07-15	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU ULTRAX 18	1.54184

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	1.651	33.69	90.3	0.048	0.048	11.182	6.4		13095

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)
	1.65	1.74	48.7		0.107	0.107	6.5	2	982

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	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	MOLECULAR REPLACEMENT	THROUGHOUT	1HEL	1.651	33.69	13066	657	90.2	0.207	0.206	0.235	RANDOM	12.075

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]
-0.15			-0.15		0.29

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	33.128
r_dihedral_angle_4_deg	13.149
r_dihedral_angle_3_deg	11.837
r_dihedral_angle_1_deg	5.377
r_scangle_it	1.88
r_scbond_it	1.172
r_angle_refined_deg	0.979
r_mcangle_it	0.696
r_mcbond_it	0.363
r_nbtor_refined	0.294

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	33.128
r_dihedral_angle_4_deg	13.149
r_dihedral_angle_3_deg	11.837
r_dihedral_angle_1_deg	5.377
r_scangle_it	1.88
r_scbond_it	1.172
r_angle_refined_deg	0.979
r_mcangle_it	0.696
r_mcbond_it	0.363
r_nbtor_refined	0.294
r_nbd_refined	0.197
r_symmetry_vdw_refined	0.18
r_symmetry_hbond_refined	0.11
r_xyhbond_nbd_refined	0.108
r_metal_ion_refined	0.081
r_chiral_restr	0.079
r_bond_refined_d	0.006
r_gen_planes_refined	0.003

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1029
Nucleic Acid Atoms
Solvent Atoms	113
Heterogen Atoms	50

Software

Software
Software Name	Purpose
MOSFLM	data reduction
SCALA	data scaling
MOLREP	phasing
REFMAC	refinement
PDB_EXTRACT	data extraction
CrystalClear	data collection

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.