6SGF

Molecular insight into a new low affinity xylan binding module CBM86, from the xylanolytic gut symbiont Roseburia intestinalis.

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.5	278	Crystal grew for 2 days at 5 C with a 1:1 ratio of the protein (18 mg/mL in 10 mM MES pH 6.5,150 mM NaCl and 1mM xylohexaose) and reservoir solution (0.2 M Cadmium chloride hemi(pentahydrate), 0.1 M Sodium acetate pH 4.8 and PEG 400 35 % v/v).

Crystal Properties
Matthews coefficient	Solvent content
2.08	40.9

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 141.87	α = 90
b = 141.87	β = 90
c = 60.6	γ = 120

Symmetry
Space Group	P 65

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	80	PIXEL	DECTRIS PILATUS3 S 6M		2017-06-02	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	PETRA III, EMBL c/o DESY BEAMLINE P13 (MX1)	1.000	PETRA III, EMBL c/o DESY	P13 (MX1)

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Sym I (Observed)	Rrim I (All)	Rpim 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	1.756	46.438	97	0.062	0.08	0.032	0.998	14.8	5.8		127404			21.84

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Rrim I (All)	Rpim I (All)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.76	1.85	80.7		0.528	0.528	0.711	0.423	1.4	2.3

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	Mean Isotropic B
X-RAY DIFFRACTION	MAD	THROUGHOUT	1.756	46.438	1.16	127404	4734	93.57	0.1806	0.1789	0.2243	28.6569

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	5954
Nucleic Acid Atoms
Solvent Atoms	679
Heterogen Atoms	443

Software

Software
Software Name	Purpose
PHENIX	refinement
SCALA	data scaling
PDB_EXTRACT	data extraction
XDS	data reduction
PHENIX	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 R01GM157729.