3ULP

Plasmodium falciparum SSB complex with ssDNA

X-RAY DIFFRACTION

---

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	8.5	277	0.1 M Bis-Tris Propane, pH 8.5, 20 % PEG 3350, 0.2 M sodium bromide, VAPOR DIFFUSION, SITTING DROP, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
2.64	53.49

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 118.017	α = 90
b = 82.794	β = 99.57
c = 87.556	γ = 90

Symmetry
Space Group	C 1 2 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	IMAGE PLATE	RIGAKU RAXIS IV++		2011-03-21	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	Cu FINE FOCUS	1.5418

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	2.1	50	99.4	0.068		3		48456		-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	2.1	2.14	97.3		0.529	2.8	3	2375

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 1EQQ	2.1	30	45791	2438	99.2	0.22084	0.21795	0.27557	RANDOM	40.239

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]
1.1		0.03	0.73		-1.82

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	39.691
r_dihedral_angle_3_deg	20.654
r_dihedral_angle_4_deg	18.668
r_dihedral_angle_1_deg	9.257
r_scangle_it	6.554
r_scbond_it	4.727
r_mcangle_it	3.731
r_mcbond_it	2.233
r_angle_refined_deg	1.468
r_chiral_restr	0.111
r_gen_planes_refined	0.019
r_bond_refined_d	0.01

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3638
Nucleic Acid Atoms	1000
Solvent Atoms	228
Heterogen Atoms

Software

Software
Software Name	Purpose
CrystalClear	data collection
PHASES	phasing
ARP/wARP	model building
Coot	model building
REFMAC	refinement
HKL-2000	data reduction
HKL-2000	data scaling