8C10

Biochemical and structural characterisation of an alkaline family GH5 cellulase from a shipworm symbiont

X-RAY DIFFRACTION

---

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	8.5	293	0.2 M MgCl2, 0.1 M Tris-HCl, pH 8.5 25 % w/v PEG 3350

Crystal Properties
Matthews coefficient	Solvent content
1.9	35.41

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 45.041	α = 90
b = 68.426	β = 90
c = 87.188	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	PIXEL	DECTRIS PILATUS 6M		2016-11-01	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	BESSY BEAMLINE 14.1	0.91842	BESSY	14.1

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	45.04	98	0.077	11.5	6.6		143241			6.32

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	1.02	77.7		0.609	1.5	2.9

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	MOLECULAR REPLACEMENT	THROUGHOUT	1	53.83	140934	2221	97.85	0.11275	0.11242	0.13342	RANDOM	10.485

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]
-0.12			0.08		0.04

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	37.53
r_sphericity_free	21.888
r_dihedral_angle_3_deg	12.133
r_dihedral_angle_4_deg	11.248
r_sphericity_bonded	7.478
r_dihedral_angle_1_deg	7.052
r_rigid_bond_restr	6.912
r_long_range_B_refined	2.888
r_long_range_B_other	2.616
r_scangle_other	2.424
r_scbond_it	2.371
r_scbond_other	2.331
r_angle_refined_deg	2.256
r_mcangle_other	1.36
r_mcangle_it	1.353
r_mcbond_it	1.237
r_mcbond_other	1.2
r_angle_other_deg	1.142
r_chiral_restr	0.143
r_bond_refined_d	0.028
r_gen_planes_refined	0.013
r_bond_other_d	0.004
r_gen_planes_other	0.002
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

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2325
Nucleic Acid Atoms
Solvent Atoms	351
Heterogen Atoms	19

Software

Software
Software Name	Purpose
REFMAC	refinement
XDS	data reduction
XSCALE	data scaling
MOLREP	phasing