4DH2

Crystal structure of Coh-OlpC(Cthe_0452)-Doc435(Cthe_0435) complex: A novel type I Cohesin-Dockerin complex from Clostridium thermocellum ATTC 27405

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	2CCL	PDB ENTRY 2CCL

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		4.6	293	2 M ammonium sulfate, pH 4.6, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.81	56.27

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 90.76	α = 90
b = 90.76	β = 90
c = 135.07	γ = 120

Symmetry
Space Group	P 32 2 1

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 QUANTUM 4r		2008-11-24	M	SINGLE WAVELENGTH

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 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	1.745	78.6	99.9	0.09	18.7	14.9		66027

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	1.74	1.84	99.6		0.887	0.887	2.4	8.8

Refinement

Statistics
Diffraction ID	Structure Solution Method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	PDB ENTRY 2CCL	1.75	39.3	1.34	65956	3344	99.9	0.183	0.181	0.215	35.3

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]
1.5604			1.5604		-3.1207

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	12.617
f_angle_d	1.296
f_chiral_restr	0.083
f_bond_d	0.014
f_plane_restr	0.006

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3623
Nucleic Acid Atoms
Solvent Atoms	461
Heterogen Atoms	49

Software

Software
Software Name	Purpose
MOSFLM	data reduction
SCALA	data scaling
DM	phasing
PHENIX	refinement
PDB_EXTRACT	data extraction
BALBES	phasing

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.