2R49

Mutational and Structural Studies of E85I Reveal the Flexible Loops of Fibrobacter succinogenes 1,3-1,4-beta-D-GlucanaseGlucanase

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	LIQUID DIFFUSION	6.5	298	30% PEG6000, 0.1M CsCl, 0.1M MES (pH5.6), pH6.5, LIQUID DIFFUSION, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
2.53	51.43

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 69.59	α = 90
b = 69.59	β = 90
c = 97.41	γ = 120

Symmetry
Space Group	P 31 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	120	IMAGE PLATE	RIGAKU RAXIS IV		2005-05-17	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU MICROMAX-007	1.54

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	2.2	38	99.6	0.098	14.2	4.9		14319		1	18.9

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)
	2.2	2.28	98.9		0.242	8.14		1398

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (All)	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 1ZM1	2.2	37.88	14319	14182	1435	98.8	0.198	0.198	0.269	RANDOM	29.4

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]
-3.9	-4.9		-3.9		7.8

RMS Deviations
Key	Refinement Restraint Deviation
c_dihedral_angle_d	27
c_scangle_it	2.92
c_mcangle_it	2.23
c_scbond_it	2.1
c_angle_deg	1.8
c_mcbond_it	1.44
c_improper_angle_d	0.99
c_bond_d	0.013
c_bond_d_na
c_bond_d_prot
c_angle_d
c_angle_d_na
c_angle_d_prot
c_angle_deg_na
c_angle_deg_prot
c_dihedral_angle_d_na
c_dihedral_angle_d_prot
c_improper_angle_d_na
c_improper_angle_d_prot

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1900
Nucleic Acid Atoms
Solvent Atoms	199
Heterogen Atoms	2

Software

Software
Software Name	Purpose
CNS	refinement
CrystalClear	data collection
DENZO	data reduction
SCALEPACK	data scaling
CNS	phasing