7LOV

Crystal structure of Clostridium difficile Toxin B (TcdB) glucosyltransferase in complex with UDP and noeuromycin

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	5UQM

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	5.6	295	85 mM Sodium Citrate pH 5.6, 170 mM Ammonium Acetate, 25.5 % (w/v) PEG 4000, 15 %(v/v) Glycerol

Crystal Properties
Matthews coefficient	Solvent content
2.7	55.66

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 152.589	α = 90
b = 82.676	β = 92.43
c = 113.227	γ = 90

Symmetry
Space Group	C 1 2 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 EIGER X 9M		2020-01-23	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSLS-II BEAMLINE 17-ID-1	0.9790	NSLS-II	17-ID-1

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	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	2.5	28.97	99.9	0.27	0.99	6.2	7		48863

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.5	2.58	99.9		1.79	0.5	1.3	7.1

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	5UQM	2.5	28.97	46524	2334	99.9	0.21	0.2081	0.2478	RANDOM	39.964

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]
2.5		-0.21	-1.21		-1.27

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.275
r_dihedral_angle_4_deg	16.53
r_dihedral_angle_3_deg	15.513
r_dihedral_angle_1_deg	5.779
r_angle_refined_deg	1.219
r_angle_other_deg	1.125
r_chiral_restr	0.044
r_bond_refined_d	0.003
r_gen_planes_refined	0.003
r_bond_other_d	0.001

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.275
r_dihedral_angle_4_deg	16.53
r_dihedral_angle_3_deg	15.513
r_dihedral_angle_1_deg	5.779
r_angle_refined_deg	1.219
r_angle_other_deg	1.125
r_chiral_restr	0.044
r_bond_refined_d	0.003
r_gen_planes_refined	0.003
r_bond_other_d	0.001
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	8808
Nucleic Acid Atoms
Solvent Atoms	223
Heterogen Atoms	104

Software

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