4A3H

2',4' DINITROPHENYL-2-DEOXY-2-FLURO-B-D-CELLOBIOSIDE COMPLEX OF THE ENDOGLUCANASE CEL5A FROM BACILLUS AGARADHAERENS AT 1.6 A RESOLUTION

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		5.5		PROTEIN (20MGML-1) WAS CRYSTALLISED FROM 1.0M AMMONIUM SULPHATE AS BOTH BUFFER AND PRECIPITANT AT PH 4.5 IN THE PRESENCE OF 15% (W/V) GLYCEROL, pH 5.5 THIS STRUCTURE WAS OBTAINED BY SOAKING THE CRYSTALS IN 10MM 2",4" DINITROPHENYL-2-DEOXY-2-FLUORO-B-D-CELLOBIOSIDE FOR 12 H PRIOR TO DATA COLLECTION.

Crystal Properties
Matthews coefficient	Solvent content
2.16	42.94

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 54.71	α = 90
b = 69.57	β = 90
c = 77.04	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	IMAGE PLATE	MARRESEARCH	LONG FOCUSSING MIRRORS (MSC)	1997-05-15	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU RU200

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (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	1.65	20	99.9	0.046	0.046	22.6	4.2		35964			14.6

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	1.65	1.71	99.9		0.176	0.176	13.4	4.2

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	ISOMORPHOUS WITH NATIVE STRUCTURE	THROUGHOUT	1.65	15	35910	1832	99.9	0.142	0.172	RANDOM	15.8

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]

RMS Deviations
Key	Refinement Restraint Deviation
p_transverse_tor	29.2
p_staggered_tor	13.2
p_scangle_it	4.5
p_planar_tor	4.5
p_scbond_it	3.1
p_mcangle_it	2.1
p_mcbond_it	1.6
p_multtor_nbd	0.245
p_singtor_nbd	0.174
p_xyhbond_nbd	0.169
p_chiral_restr	0.13
p_planar_d	0.031
p_angle_d	0.026
p_plane_restr	0.012
p_bond_d	0.01
p_angle_deg
p_hb_or_metal_coord
p_xhyhbond_nbd
p_orthonormal_tor
p_special_tor

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2377
Nucleic Acid Atoms
Solvent Atoms	417
Heterogen Atoms	35

Software

Software
Software Name	Purpose
CCP4	model building
REFMAC	refinement
DENZO	data reduction
SCALEPACK	data scaling
CCP4	phasing