Experiment: 3ZQX

Carbohydrate-binding module CBM3b from the cellulosomal cellobiohydrolase 9A from Clostridium thermocellum

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
other		WILD-TYPE MOLECULE OF SAME PROTEIN

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		7.5		30%(V/V) TERT-BUTANOL 0.1 M TRI-NA CITRATE DEHYDRATE, PH 5.6

Crystal Properties
Matthews coefficient	Solvent content
2.05	40.17

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 50.036	α = 90
b = 50.036	β = 90
c = 122.595	γ = 90

Symmetry
Space Group	P 41 21 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	MIRRORS	2010-02-17	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	1.04	50	97.5	0.05	52.9	10.17		75775			8.2

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.04	1.06	95.4		3.4

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 (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	WILD-TYPE MOLECULE OF SAME PROTEIN	1.04	46.33	1.34	73783	3733	97.5	0.167	0.167	0.1643	0.171	0.1669

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]
1.6438			1.6438		-3.2875

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	14.794
f_angle_d	1.251
f_chiral_restr	0.101
f_plane_restr	0.008
f_bond_d	0.006

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1179
Nucleic Acid Atoms
Solvent Atoms	239
Heterogen Atoms	1

Software

Software
Software Name	Purpose
PHENIX	refinement
DENZO	data reduction
SCALEPACK	data scaling
MOLREP	phasing