3SSE

DNA binding domain of restriction endonuclease bound to DNA

X-RAY DIFFRACTION

---

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	sitting drop	5.5	292	0.1 M Bis-Tris (pH 5.5), 0.2 M NH4Cl, 30% PEG4000, sitting drop, temperature 292K

Crystal Properties
Matthews coefficient	Solvent content
1.75	35.5

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 36.046	α = 90
b = 69.087	β = 90
c = 143.896	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		2010-12-23	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	OTHER	1.5418

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	2.7	62.257	100	0.132	0.132	14.7	5.6		10488

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	2.7	2.85	100		0.44	0.44	1.7	5.7	1482

Refinement

Statistics
Diffraction ID	Structure Solution Method	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	Mean Isotropic B
X-RAY DIFFRACTION		2.7	39.41	10448	1036	99.9	0.223	0.216	0.292	22.95

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]
-1.36			2.4		-1.04

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	32.221
r_dihedral_angle_3_deg	16.658
r_dihedral_angle_4_deg	12.421
r_dihedral_angle_1_deg	5.271
r_scangle_it	3.498
r_scbond_it	2.304
r_mcangle_it	1.779
r_mcbond_it	0.922
r_angle_refined_deg	0.876
r_chiral_restr	0.058
r_bond_refined_d	0.005
r_gen_planes_refined	0.003
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
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_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2471
Nucleic Acid Atoms	486
Solvent Atoms	34
Heterogen Atoms

Software

Software
Software Name	Purpose
REFMAC	refinement
SCALA	data scaling
PDB_EXTRACT	data extraction
StructureStudio	data collection
MOSFLM	data reduction
MOLREP	phasing