Experiment: 1S18

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	5	295	PEG MME 2000, sodium acetate, ammonium sulfate, strontium chloride, pH 5.0, VAPOR DIFFUSION, HANGING DROP, temperature 295.0K

Crystal Properties
Matthews coefficient	Solvent content
2.29	45.81

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 43.163	α = 99.44
b = 52.501	β = 106.58
c = 77.925	γ = 99.89

Symmetry
Space Group	P 1

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100	CCD	ADSC QUANTUM 4		2002-10-12	M	MAD

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSLS BEAMLINE X25	0.98, 0.9794, 0.9790, 0.9687	NSLS	X25

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	1.7	72.6	95.1	0.057	14.3	3.5		65632			16.3

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)
	1.7	1.76	79.2		0.238	3.5	2.3	5489

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	MAD	THROUGHOUT	1.7	72.55	65632	62309	3323	95.11	0.1591	0.1591	0.15736	0.19087	RANDOM	19.001

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]
0.12	0.33	-0.05	0.09	-0.24	-0.2

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_1_deg	6.464
r_scangle_it	4.872
r_scbond_it	2.946
r_mcangle_it	1.902
r_angle_refined_deg	1.532
r_mcbond_it	1.045
r_nbd_refined	0.206
r_symmetry_hbond_refined	0.184
r_symmetry_vdw_refined	0.172
r_xyhbond_nbd_refined	0.153

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_1_deg	6.464
r_scangle_it	4.872
r_scbond_it	2.946
r_mcangle_it	1.902
r_angle_refined_deg	1.532
r_mcbond_it	1.045
r_nbd_refined	0.206
r_symmetry_hbond_refined	0.184
r_symmetry_vdw_refined	0.172
r_xyhbond_nbd_refined	0.153
r_chiral_restr	0.118
r_bond_refined_d	0.016
r_gen_planes_refined	0.008

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4998
Nucleic Acid Atoms
Solvent Atoms	525
Heterogen Atoms	74

Software

Software
Software Name	Purpose
REFMAC	refinement
DENZO	data reduction
SCALEPACK	data scaling
SOLVE	phasing

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 R01GM157729.