6ZBW

Structure of the D125N mutant of the catalytic domain of the Bacillus circulans alpha-1,6 Mannanase in complex with an alpha-1,6-alpha-manno-cyclophellitol trisaccharide inhibitor

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	4D4A

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP		291	PEG 3350, ammonium nitrate

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 43.861	α = 90
b = 66.422	β = 100.13
c = 98.892	γ = 90

Symmetry
Space Group	P 1 21 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	PIXEL	DECTRIS EIGER2 XE 16M		2020-02-20	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	DIAMOND BEAMLINE I04	0.9795	Diamond	I04

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	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	1.4	54.87	99.4	0.029	0.998	6.7	4.2		109221

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Rpim I (All)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.4	1.42	98.6		0.629	0.633	0.9	4.2

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	4D4A	1.4	48.72	103667	5531	99.27	0.1564	0.1536	0.2062	RANDOM	19.224

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]
-0.15		0.9	-0.26		0.08

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.66
r_dihedral_angle_4_deg	23.776
r_dihedral_angle_3_deg	12.814
r_dihedral_angle_1_deg	6.337
r_rigid_bond_restr	3.862
r_angle_refined_deg	1.772
r_angle_other_deg	1.648
r_chiral_restr	0.1
r_bond_refined_d	0.013
r_gen_planes_refined	0.012

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.66
r_dihedral_angle_4_deg	23.776
r_dihedral_angle_3_deg	12.814
r_dihedral_angle_1_deg	6.337
r_rigid_bond_restr	3.862
r_angle_refined_deg	1.772
r_angle_other_deg	1.648
r_chiral_restr	0.1
r_bond_refined_d	0.013
r_gen_planes_refined	0.012
r_bond_other_d	0.001
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	5269
Nucleic Acid Atoms
Solvent Atoms	439
Heterogen Atoms	100

Software

Software
Software Name	Purpose
REFMAC	refinement
PDB_EXTRACT	data extraction
XDS	data reduction
XSCALE	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 R01GM157729.