3C25

Crystal Structure of NotI Restriction Endonuclease Bound to Cognate DNA

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		6.5		2.0 M Ammonium Sulfate, 100 mM MES, 20 mM NaCl, 10 mM CaCl2, pH 6.5

Crystal Properties
Matthews coefficient	Solvent content
2.23	44.72

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 73.89	α = 90
b = 81.712	β = 99.51
c = 73.583	γ = 90

Symmetry
Space Group	P 1 21 1

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray						M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ALS BEAMLINE 8.2.1	1.5000	ALS	8.2.1

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	2.5	50	97.7	0.055	14.2	6.9		29547

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	2.5	2.59	82.2		0.277		5	2457

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	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		THROUGHOUT	2.5	50	29363	1483	97.74	0.226	0.223	0.277	RANDOM	66.001

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]
-1.59		-1.63	2.04		-0.98

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.118
r_dihedral_angle_4_deg	17.067
r_dihedral_angle_3_deg	16.414
r_dihedral_angle_1_deg	5.03
r_angle_refined_deg	1.094
r_scangle_it	0.582
r_scbond_it	0.356
r_nbtor_refined	0.295
r_mcangle_it	0.261
r_xyhbond_nbd_refined	0.187
r_nbd_refined	0.172
r_mcbond_it	0.148
r_chiral_restr	0.085
r_symmetry_vdw_refined	0.071
r_symmetry_hbond_refined	0.011
r_metal_ion_refined	0.008
r_bond_refined_d	0.007
r_gen_planes_refined	0.002

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	5438
Nucleic Acid Atoms	896
Solvent Atoms	168
Heterogen Atoms	6

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
REFMAC	refinement
PDB_EXTRACT	data extraction
ADSC	data collection
HKL-2000	data reduction