Experiment: 2CKR

X-RAY CRYSTAL STRUCTURE OF THE CATALYTIC DOMAIN OF THERMOBIFIDA FUSCA ENDOGLUCANASE CEL5A (E5) E355Q IN COMPLEX WITH CELLOTETRAOSE

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	5.2		PROTEIN WAS CRYSTALLISED USING THE HANGING DROP VAPOUR DIFFUSION METHOD BY MIXING 2 MICROLITER OF WELL SOLUTION CONTAINING 10% PEG 8000, 0.1 M HEPES PH 7.0, 0.1 M NA ACETATE, 5MM ZN ACETATE WITH 2 MICROLITER 1MG/ML PROTEIN SOLUTION AND 0.5 MICROLITER OF 20% BENZAMIDINE

Crystal Properties
Matthews coefficient	Solvent content
1.8	31.1

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 49.365	α = 90
b = 70.85	β = 93.86
c = 76.278	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		2002-09-29	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID14-2		ESRF	ID14-2

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	1.77	32.1	98.8	0.08	11.7	2.3		50412			13.4

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	1.77	1.82	99.7		0.41	2.9	2.2

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-Factor (Observed)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	OTHER	THROUGHOUT	1.77	32.11	47827	2582	99.8	0.1602	0.15841	0.1709	0.19303	0.2021	RANDOM	12.118

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]
0.61		0.1	-0.56		-0.04

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4803
Nucleic Acid Atoms
Solvent Atoms	534
Heterogen Atoms	93

Software

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