2Q10

RESTRICTION ENDONUCLEASE BcnI (WILD TYPE)-COGNATE DNA SUBSTRATE COMPLEX

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	4.6	294	0.02 M CALCIUM CHLORIDE DIHYDRATE, 0.1 M SODIUM ACETATE TRIHYDRATE, 30% (V/V) 2-METHYL-2,4-PENTANEDIOL , pH 4.60, VAPOR DIFFUSION, SITTING DROP, temperature 294K

Crystal Properties
Matthews coefficient	Solvent content
2.05	40.07

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 81.354	α = 90
b = 87.551	β = 90
c = 79.162	γ = 90

Symmetry
Space Group	P 21 21 2

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	MARRESEARCH	BENT MIRROR	2006-10-04	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	MPG/DESY, HAMBURG BEAMLINE BW6		MPG/DESY, HAMBURG	BW6

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	1.75	30	99.9	0.079	5.8	3.2	57635	57635			14.8

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.75	1.84	100		0.26	2.9	3.2	8336

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	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	pdb entry 2ODI	1.75	29.72	57579	57579	2882	99.8	0.176	0.176	0.174	0.213	RANDOM	8.32

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]
0.2			0.68		-0.88

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	33.949
r_dihedral_angle_4_deg	18.347
r_dihedral_angle_3_deg	12.796
r_dihedral_angle_1_deg	6.688
r_scangle_it	2.237
r_scbond_it	1.8
r_angle_refined_deg	1.35
r_mcangle_it	1.032
r_angle_other_deg	0.911
r_mcbond_it	0.799
r_symmetry_vdw_other	0.267
r_symmetry_vdw_refined	0.224
r_nbd_other	0.209
r_nbd_refined	0.199
r_nbtor_refined	0.185
r_symmetry_hbond_refined	0.18
r_mcbond_other	0.166
r_xyhbond_nbd_refined	0.161
r_metal_ion_refined	0.151
r_nbtor_other	0.079
r_chiral_restr	0.077
r_bond_refined_d	0.011
r_bond_other_d	0.007
r_gen_planes_refined	0.007
r_gen_planes_other	0.002
r_xyhbond_nbd_other
r_metal_ion_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3844
Nucleic Acid Atoms	890
Solvent Atoms	645
Heterogen Atoms	5

Software

Software
Software Name	Purpose
REFMAC	refinement
MAR345	data collection
MOSFLM	data reduction
SCALA	data scaling