5I2U

Crystal structure of a novel Halo-Tolerant Cellulase from Soil Metagenome

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	8.5	293	0.2M MAGNESIUM CHLORIDE HEXAHYDRATE, 0.1M TRIS, 25% PEG3350

Crystal Properties
Matthews coefficient	Solvent content
2.1	36.5

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 45.766	α = 90
b = 88.128	β = 90
c = 146.47	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	IMAGE PLATE	MAR scanner 345 mm plate		2014-05-21	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU MICROMAX-007 HF	1.542

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	2.2	45.77	98.3	0.078	15.9	6		30246		-3	36.5

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	2.2	2.27	88		0.457	2.7	5.1

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	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	MOLECULAR REPLACEMENT	THROUGHOUT	3PZT	2.2	45.77	28609	1567	98.19	0.21146	0.20895	0.25706	RANDOM	38.151

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]
2.66			1.24		-3.9

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	33.698
r_dihedral_angle_3_deg	13.523
r_dihedral_angle_4_deg	12.344
r_long_range_B_refined	6.676
r_long_range_B_other	6.676
r_dihedral_angle_1_deg	6.136
r_scangle_other	4.199
r_mcangle_it	3.541
r_mcangle_other	3.541
r_scbond_it	2.797
r_scbond_other	2.741
r_mcbond_it	2.414
r_mcbond_other	2.408
r_angle_refined_deg	1.295
r_angle_other_deg	1.054
r_chiral_restr	0.077
r_bond_refined_d	0.009
r_gen_planes_refined	0.005
r_bond_other_d	0.004
r_gen_planes_other	0.003
r_nbd_refined
r_nbd_other
r_nbtor_refined
r_nbtor_other
r_xyhbond_nbd_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_refined
r_symmetry_vdw_other
r_symmetry_hbond_refined
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_scangle_it
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4783
Nucleic Acid Atoms
Solvent Atoms	134
Heterogen Atoms	66

Software

Software
Software Name	Purpose
REFMAC	refinement
XDS	data reduction
Aimless	data scaling
PHASER	phasing