4PEU

Structure of the polysaccharide lyase-like protein Cthe_2159 from C. thermocellum, native form with Calcium bound

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION		295	19% PEG 8000, 0.1M MES pH 6.0, and 0.1M Calcium acetate

Crystal Properties
Matthews coefficient	Solvent content
2.47	50.14

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 70.6997	α = 90
b = 123.429	β = 90
c = 34.5297	γ = 90

Symmetry
Space Group	P 21 21 2

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	RIGAKU RAXIS IV++		2011-09-09	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU MICROMAX-007 HF	1.5418

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	1.8	26.8	97.2	0.026	17.16	2	55471	28069			13.0353170306

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (All)	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	SAD	FREE R-VALUE	1.8001	26.8	1.33785346198	52463	28069	5250	96.9026794135	0.148521419908	0.145936557685	0.171032934604	Random	18.3067167183

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
f_dihedral_angle_d	12.4302642727
f_angle_d	1.07786961137
f_chiral_restr	0.041042995236
f_bond_d	0.0057020637642
f_plane_restr	0.00376660566506

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1864
Nucleic Acid Atoms
Solvent Atoms	403
Heterogen Atoms	3

Software

Software
Software Name	Purpose
PHENIX	refinement
HKL-3000	data collection
MOSFLM	data reduction
SCALA	data scaling
Coot	model building
PHASER	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.