Experiment: 1S1D

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1S18	PDB ENTRY 1S18

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 295K

Crystal Properties
Matthews coefficient	Solvent content
2.24	44.78

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 43.163	α = 98.99
b = 52.45	β = 106.99
c = 77.478	γ = 100.09

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		2003-06-01	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSLS BEAMLINE X4A	0.98	NSLS	X4A

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	1.6	46.6	95	0.059	12	1.9	79084	79084			16.4

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)
	1.6	1.66	93.8		0.348	2.3	1.9	7743

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	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	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 1S18	1.6	46.6	79084	75102	3982	95	0.16581	0.16581	0.16427	0.17	0.19399	0.19	RANDOM	18.372

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]
-0.35	0.24	-0.07	-0.07	-0.37	0.35

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_1_deg	6.663
r_scangle_it	4.275
r_scbond_it	2.66
r_mcangle_it	1.747
r_angle_refined_deg	1.543
r_mcbond_it	0.975
r_nbd_refined	0.212
r_symmetry_hbond_refined	0.192
r_symmetry_vdw_refined	0.167
r_metal_ion_refined	0.157

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_1_deg	6.663
r_scangle_it	4.275
r_scbond_it	2.66
r_mcangle_it	1.747
r_angle_refined_deg	1.543
r_mcbond_it	0.975
r_nbd_refined	0.212
r_symmetry_hbond_refined	0.192
r_symmetry_vdw_refined	0.167
r_metal_ion_refined	0.157
r_xyhbond_nbd_refined	0.152
r_chiral_restr	0.107
r_bond_refined_d	0.015
r_gen_planes_refined	0.007

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4998
Nucleic Acid Atoms
Solvent Atoms	650
Heterogen Atoms	128

Software

Software
Software Name	Purpose
REFMAC	refinement
DENZO	data reduction
SCALEPACK	data scaling
MOLREP	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.