4DAM

Crystal structure of small single-stranded DNA-binding protein from Streptomyces coelicolor

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	5	291	0.2 M diammonium hydrogen citrate, 20% PEG3350, 10% glycerol, pH 5.0, VAPOR DIFFUSION, HANGING DROP, temperature 291K

Crystal Properties
Matthews coefficient	Solvent content
2.1	41.32

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 150.004	α = 90
b = 150.004	β = 90
c = 54.7	γ = 120

Symmetry
Space Group	P 32

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	MARMOSAIC 225 mm CCD	mirrors	2010-04-16	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE BM14	0.95371	ESRF	BM14

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	1.7	50	100	0.056	0.056	42.8	11.7		150872	1	1	22.4

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	1.7	1.73	99.8		0.561	0.561	3.5	7.5	7441

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (I)	Cut-off Sigma (F)	Number Reflections (All)	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 3EIV	1.7	50	1	1	150872	143296	7555	99.87	0.15515	0.1532	0.19199	RANDOM	25.498

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]
-0.18	-0.09		-0.18		0.27

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	30.095
r_sphericity_free	22.448
r_dihedral_angle_4_deg	15.746
r_dihedral_angle_3_deg	14.678
r_sphericity_bonded	10.748
r_dihedral_angle_1_deg	6.522
r_rigid_bond_restr	4.697
r_angle_other_deg	1.947
r_angle_refined_deg	1.523
r_chiral_restr	0.091
r_bond_refined_d	0.012
r_bond_other_d	0.011
r_gen_planes_refined	0.008
r_gen_planes_other	0.008
r_nbd_refined
r_nbd_other
r_nbtor_refined
r_nbtor_other
r_xyhbond_nbd_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_refined
r_symmetry_vdw_other
r_symmetry_hbond_refined
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_it
r_mcbond_other
r_mcangle_it
r_scbond_it
r_scangle_it

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	9730
Nucleic Acid Atoms
Solvent Atoms	808
Heterogen Atoms

Software

Software
Software Name	Purpose
MxCuBE	data collection
EPMR	phasing
REFMAC	refinement
HKL-2000	data reduction
HKL-2000	data scaling