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	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	OTHER	THROUGHOUT	1.77	32.11	47827	2582	99.8	0.1602	0.15841	0.19303	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

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.