2BM3

Structure of the Type II cohesin from Clostridium thermocellum SdbA

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1				2MM CACL2, 5% ISOPROPANOL AND 2M AMONNIUM SULPHATE. CRYO-PROTECTED WITH 30% GLYCEROL

Crystal Properties
Matthews coefficient	Solvent content
2.17	42.96

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 79.677	α = 90
b = 79.677	β = 90
c = 101.745	γ = 120

Symmetry
Space Group	P 63 2 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	ADSC CCD	TOROIDAL MIRROR	2005-02-12	M	MAD

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID14-2		ESRF	ID14-2

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	1.8	20	100	0.06	73.5	35.2		18256

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	1.8	1.86	100		0.4	15	35.9

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	COMBINED MULTIPLE WAVELENGTH AND MULTIPLE ISOMORPHOUS REPLACEMENT	THROUGHOUT	1.8	69.01	17299	928	99.7	0.192	0.189	0.26	RANDOM	22.79

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]
0.71	0.35		0.71		-1.06

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	42.092
r_dihedral_angle_4_deg	24.534
r_dihedral_angle_3_deg	13.859
r_dihedral_angle_1_deg	6.097
r_scangle_it	3.493
r_scbond_it	2.447
r_mcangle_it	1.64
r_angle_refined_deg	1.529
r_mcbond_it	1.033
r_nbtor_refined	0.315
r_symmetry_vdw_refined	0.211
r_nbd_refined	0.205
r_xyhbond_nbd_refined	0.153
r_symmetry_hbond_refined	0.127
r_chiral_restr	0.119
r_bond_refined_d	0.015
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_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other
r_mcangle_other
r_scbond_other
r_scangle_other
r_long_range_B_refined
r_long_range_B_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1229
Nucleic Acid Atoms
Solvent Atoms	194
Heterogen Atoms	16

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
SHARP	phasing
DM	phasing
REFMAC	refinement