3FD2

Crystal structure of mMsoI/DNA complex with calcium

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		7.3	291	22% PEG 400, 100 mM Tris pH 7.3, 10 mM calcium chloride, 20 mM sodium chloride, VAPOR DIFFUSION, HANGING DROP, temperature 291K

Crystal Properties
Matthews coefficient	Solvent content
1.93	36.4

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 41.932	α = 107.21
b = 41.933	β = 95.43
c = 70.96	γ = 109.44

Symmetry
Space Group	P 1

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray		IMAGE PLATE	RIGAKU RAXIS IV		2008-03-25	M	SINGLE WAVELENGTH

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

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	2.69	50	97	0.052	21	3.9		11073

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	2.69	2.8	95.8		0.258	4.51	3.9

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	1M5X	2.69	50	10862	546	96.6	0.215	0.211	0.281	RANDOM	59.2

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]
2.72	4.6	-6.76	1.75	-3.57	0.12

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	34.787
r_dihedral_angle_1_deg	5.122
r_angle_refined_deg	1.11
r_nbtor_refined	0.304
r_nbd_refined	0.198
r_xyhbond_nbd_refined	0.142
r_chiral_restr	0.064
r_bond_refined_d	0.008
r_gen_planes_refined	0.003
r_bond_other_d
r_angle_other_deg
r_dihedral_angle_3_deg
r_dihedral_angle_4_deg
r_gen_planes_other
r_nbd_other
r_nbtor_other
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
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2720
Nucleic Acid Atoms	978
Solvent Atoms	35
Heterogen Atoms	2

Software

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