4A05

Structure of the catalytic core domain of the cellobiohydrolase, Cel6A, from Chaetomium thermophilum

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		7		20% PEG 6000, 0.1M HEPES PH 7.0, 0.14 M LICL

Crystal Properties
Matthews coefficient	Solvent content
2.55	51.7

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 49.71	α = 90
b = 76.06	β = 90
c = 107.24	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	CCD	MARRESEARCH	MIRRORS	2010-10-22	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	DIAMOND BEAMLINE I04-1		Diamond	I04-1

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	1.9	50	99.9	0.09	14.6	7.1		32910		2	17.2

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	1.9	2	99.8		0.2	7.4	7.1

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	PDB ENTRY 1OC6	1.9	38.03	31106	1647	99.61	0.16875	0.16721	0.19722	RANDOM	21.107

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]
-0.13			-0.03		0.16

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	37.962
r_dihedral_angle_4_deg	16.959
r_dihedral_angle_3_deg	12.31
r_sphericity_free	7.516
r_sphericity_bonded	6.019
r_dihedral_angle_1_deg	5.766
r_rigid_bond_restr	1.552
r_angle_refined_deg	1.222
r_mcangle_it	1.222
r_nbtor_refined	0.312
r_nbd_refined	0.199
r_symmetry_hbond_refined	0.168
r_symmetry_vdw_refined	0.159
r_xyhbond_nbd_refined	0.129
r_chiral_restr	0.077
r_metal_ion_refined	0.011
r_bond_refined_d	0.009
r_mcbond_it	0.009
r_gen_planes_refined	0.005
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_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_it
r_scbond_other
r_scangle_it
r_scangle_other
r_long_range_B_refined
r_long_range_B_other

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2775
Nucleic Acid Atoms
Solvent Atoms	325
Heterogen Atoms	97

Software

Software
Software Name	Purpose
REFMAC	refinement
MOSFLM	data reduction
SCALA	data scaling
MOLREP	phasing