1OVV

CRYSTAL STRUCTURE OF FOUR-HELIX BUNDLE MODEL di-Co(II)-DF1-L13A (form II)

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7.5	298	Peg 400, TRIS-HCl, pH 7.50, VAPOR DIFFUSION, HANGING DROP, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
2.03	39.74

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 36.92	α = 90
b = 80.05	β = 90
c = 96.62	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	MARRESEARCH	MIRROR	2002-09-30	M	1.200

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ELETTRA BEAMLINE 5.2R	1.2000	ELETTRA	5.2R

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	2.9	33.3	96.8	0.109	0.109	11.2	5.7		6492			68

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	2.9	3.06	89		0.573	0.573	3.1	5.4

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	UNCONVENTIANAL METHOD USING THE GROUP-SUBGROUP RELATION	THROUGHOUT	2.9	15	6492	309	96.3	0.26943	0.26695	0.31979	RANDOM	61.7

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]
-3.24			-10.3		13.54

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	25.086
r_scangle_it	10.53
r_dihedral_angle_1_deg	7.507
r_scbond_it	6.679
r_mcangle_it	4.087
r_angle_refined_deg	2.502
r_mcbond_it	2.169
r_symmetry_hbond_refined	0.395
r_nbd_refined	0.354
r_symmetry_vdw_refined	0.337
r_xyhbond_nbd_refined	0.25
r_chiral_restr	0.156
r_bond_refined_d	0.028
r_gen_planes_refined	0.006
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
r_nbd_other
r_nbtor_other
r_xyhbond_nbd_other
r_symmetry_vdw_other
r_symmetry_hbond_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2478
Nucleic Acid Atoms
Solvent Atoms	7
Heterogen Atoms	7

Software

Software
Software Name	Purpose
MOSFLM	data reduction
SCALA	data scaling
REFMAC	refinement
CCP4	data scaling