Experiment: 1SDD

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	7	285	PEG3350, MAGNESIUM CHLORIDE, CALCIUM CHLORIDE, pH 7.0, VAPOR DIFFUSION, SITTING DROP, temperature 285K

Crystal Properties
Matthews coefficient	Solvent content
3.17	60.9

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 63.37	α = 90
b = 86.56	β = 90
c = 229.2	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	100	CCD	ADSC QUANTUM 4		2002-03-20	M	SINGLE WAVELENGTH
2	1	x-ray	100	CCD	BRANDEIS - B1.3		2001-04-12	M	MAD
3	1	x-ray	100	CCD	BRANDEIS - B4		2000-03-10	M	SINGLE WAVELENGTH
4	1	x-ray	100	CCD	BRANDEIS - B4		2000-03-09	M	SINGLE WAVELENGTH
1,2,3,4	1

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	CHESS BEAMLINE A1	0.935	CHESS	A1
2	SYNCHROTRON	NSLS BEAMLINE X12C	0.9803, 1.0097, 1.0106	NSLS	X12C
3	SYNCHROTRON	NSLS BEAMLINE X25	1.100	NSLS	X25
4	SYNCHROTRON	NSLS BEAMLINE X25	1.100	NSLS	X25

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
1,2,3,4	2.8	30	88.8	0.049	0.054	7.2	4.2	32016	28745	1	1

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)
1,2,3,4	2.8	2.9	80.8		0.206	0.307	2.3	2	3154

Refinement

Statistics
Diffraction ID	Structure Solution 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 (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MIR + MAD	2.8	30	31911	28745	1098	90.1	0.258	0.262	0.252	0.2485	0.296	0.3046	RANDOM

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
x_dihedral_angle_d	25.56
x_angle_deg	1.94
x_improper_angle_d	1.19
x_bond_d	0.019

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	7010
Nucleic Acid Atoms
Solvent Atoms	189
Heterogen Atoms	72

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
MLPHARE	phasing
CNS	refinement

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.