4AVN

Thermobifida fusca cellobiohydrolase Cel6B catalytic mutant D226A- S232A cocrystallized with cellobiose

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
other		UNPUBLISHED WILD TYPE CEL6B

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		4		20% PEG 6000, 0.1 M CALCIUM CHLORIDE, 0.1 M SODIUM ACETATE PH 4, ABOUT 10 MM CELLOBIOSE.

Crystal Properties
Matthews coefficient	Solvent content
2.01	38.84

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 42.52	α = 90
b = 92.08	β = 111.85
c = 49.78	γ = 90

Symmetry
Space Group	P 1 21 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 CCD	TOROIDAL MIRROR	2010-02-20	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID14-4		ESRF	ID14-4

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	1.78	30	99.4	0.1	15.3	7.1		23941		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	2	2.11	99.9		0.34	5.7	7.2

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 (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	UNPUBLISHED WILD TYPE CEL6B	2	46.2	22697	1224	99.41	0.1565	0.15419	0.16	0.19802	0.2	RANDOM	14.171

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]
0.12		1.03	-0.65		1.3

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.989
r_dihedral_angle_3_deg	12.03
r_dihedral_angle_4_deg	11.175
r_dihedral_angle_1_deg	5.409
r_scangle_it	2.042
r_scbond_it	1.245
r_angle_refined_deg	1.08
r_mcangle_it	0.849
r_mcbond_it	0.457
r_chiral_restr	0.076
r_bond_refined_d	0.009
r_gen_planes_refined	0.005
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
r_nbd_refined
r_nbd_other
r_nbtor_refined
r_nbtor_other
r_xyhbond_nbd_refined
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_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	3204
Nucleic Acid Atoms
Solvent Atoms	275
Heterogen Atoms	58

Software

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