6SAU

Structural and functional characterisation of three novel fungal amylases with enhanced stability and pH tolerance.

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP		292	12% PEG 3350 0.2 M NaNO3, CAPS pH 11.0

Crystal Properties
Matthews coefficient	Solvent content
2.3	46.59

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 56.877	α = 79.33
b = 61.966	β = 82.88
c = 70.395	γ = 67.99

Symmetry
Space Group	P 1

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	MARRESEARCH		2016-02-19	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	DIAMOND BEAMLINE I02	0.9795	Diamond	I02

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	1.35	33.2	85.3	12.8	2.1		163777

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.35	1.37	38.2

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	1.35	33.13	155488	8289	85.24	0.1146	0.1127	0.1503	RANDOM	9.245

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]
0.01	-0.03	0.01	0.03	0.03	-0.06

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	34.55
r_dihedral_angle_4_deg	12.699
r_dihedral_angle_3_deg	11.365
r_dihedral_angle_1_deg	6.209
r_rigid_bond_restr	4.441
r_angle_refined_deg	2.249
r_angle_other_deg	1.709
r_chiral_restr	0.153
r_bond_refined_d	0.021
r_gen_planes_refined	0.014

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	34.55
r_dihedral_angle_4_deg	12.699
r_dihedral_angle_3_deg	11.365
r_dihedral_angle_1_deg	6.209
r_rigid_bond_restr	4.441
r_angle_refined_deg	2.249
r_angle_other_deg	1.709
r_chiral_restr	0.153
r_bond_refined_d	0.021
r_gen_planes_refined	0.014
r_gen_planes_other	0.002
r_bond_other_d	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	6914
Nucleic Acid Atoms
Solvent Atoms	875
Heterogen Atoms	232

Software

Software
Software Name	Purpose
REFMAC	refinement
PDB_EXTRACT	data extraction
XDS	data reduction
Aimless	data scaling
MOLREP	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.