3K10

Crystal structure of telomere capping protein Stn1 from Saccharomyces cerevisiae

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	8.4	290	15% w/v PEG 1000, 10 mM EDTA, 0.1 M Tris-HCl pH 8.4, 10mM PtCl4, VAPOR DIFFUSION, HANGING DROP, temperature 290K
2	VAPOR DIFFUSION, HANGING DROP	8.4	290	15% w/v PEG 1000, 10 mM EDTA, 0.1 M Tris-HCl pH 8.4, 6mM KAuCl4, VAPOR DIFFUSION, HANGING DROP, temperature 290K

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 52.709	α = 90
b = 52.709	β = 90
c = 186.552	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	93.15	IMAGE PLATE	RIGAKU RAXIS IV		2008-08-04	M	SINGLE WAVELENGTH
2	1	x-ray	93.15	IMAGE PLATE	RIGAKU RAXIS IV		2008-08-04	M	SINGLE WAVELENGTH
3	1	x-ray	93.15	CCD	ADSC QUANTUM 315r		2009-06-19	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU	1.502
2	ROTATING ANODE	RIGAKU	1.502
3	SYNCHROTRON	NSLS BEAMLINE X29A	1.0809	NSLS	X29A

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
1,2,3	2.3	50	85.5	0.063	14.3	8.6		13389

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)
	2.3	2.38	35.5		0.421		4.6	429

Refinement

Statistics
Diffraction ID	Structure Solution Method	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Work	R-Free	Mean Isotropic B
X-RAY DIFFRACTION	SIRAS	2.5	20	1480	10710	1406	77.3	0.246	0.301	55.273

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]
10.923			10.923		-21.846

RMS Deviations
Key	Refinement Restraint Deviation
c_angle_deg	1.32016
c_bond_d	0.007865

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1348
Nucleic Acid Atoms
Solvent Atoms	146
Heterogen Atoms

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
SOLVE	phasing
RESOLVE	phasing
CNS	refinement
PDB_EXTRACT	data extraction
HKL-2000	data collection

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.