Experiment: 8W8U

High-resolution X-ray structure of cellulase Cel6A from Phanerochaete chrysosporium at cryogenic temperature

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	5XCY

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	COUNTER-DIFFUSION		293	polyethylene glycol 3350, 2-methyl-2,4-pentandiol, calcium acetate, acetate buffer,

Crystal Properties
Matthews coefficient	Solvent content
2.12	41.87

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 54.926	α = 90
b = 67.018	β = 90
c = 88.25	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	CCD	ADSC QUANTUM 270		2016-03-01	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	PHOTON FACTORY BEAMLINE AR-NW12A	0.8	Photon Factory	AR-NW12A

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	Rrim I (All)	CC (Half)	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	0.8	100	97.4	0.088	0.096	0.998	8.19	4.3		647100

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Rrim I (All)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	0.8	0.82			0.786	0.928	0.577

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 (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	FREE R-VALUE	0.8	38.3	335112		98.18	0.1158	0.1184	0.128	0.1289

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]

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2710
Nucleic Acid Atoms
Solvent Atoms	554
Heterogen Atoms	36

Software

Software
Software Name	Purpose
XSCALE	data scaling
SHELXL	refinement
XDS	data reduction