Experiment: 3SAA

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1F7A	PDB ENTRY 1F7A

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	HANGING DROP, VAPOR DIFFUSION	6.2	295	24-29% ammonium sulfate, 63 mM sodium citrate, 126 mM phosphate buffer, pH 6.2, HANGING DROP, VAPOR DIFFUSION, temperature 295K

Crystal Properties
Matthews coefficient	Solvent content
2.12	42.06

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 51.007	α = 90
b = 58.114	β = 90
c = 61.971	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	IMAGE PLATE	RIGAKU RAXIS IV		2009-12-14		SINGLE WAVELENGTH

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

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	1.95	50	92.1	0.048	18.8	6.9		12874

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	1.95	2.02	62.3		0.187		6.2	854

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	PDB ENTRY 1F7A	1.95	42.39	12798	638	91.84	0.1758	0.1732	0.2281	RANDOM	28.9368

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]
-0.8			0.11		0.69

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	43.734
r_dihedral_angle_3_deg	14.878
r_dihedral_angle_4_deg	12.121
r_dihedral_angle_1_deg	6.132
r_scangle_it	2.471
r_scbond_it	1.648
r_angle_refined_deg	1.474
r_mcangle_it	0.934
r_angle_other_deg	0.864
r_mcbond_it	0.577

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	43.734
r_dihedral_angle_3_deg	14.878
r_dihedral_angle_4_deg	12.121
r_dihedral_angle_1_deg	6.132
r_scangle_it	2.471
r_scbond_it	1.648
r_angle_refined_deg	1.474
r_mcangle_it	0.934
r_angle_other_deg	0.864
r_mcbond_it	0.577
r_mcbond_other	0.173
r_chiral_restr	0.087
r_bond_refined_d	0.009
r_gen_planes_refined	0.006
r_bond_other_d	0.002
r_gen_planes_other	0.002

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1498
Nucleic Acid Atoms
Solvent Atoms	101
Heterogen Atoms	50

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
REFMAC	refinement
PDB_EXTRACT	data extraction
HKL-2000	data reduction
AMoRE	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.