Experiment: 8BBY

VarB H/L (SLPL/SLPH) complex from C. difficile SlpA (R20291 strain)

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	7ACZ

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP		293.15	0.03 M Magnesium chloride hexahydrate; 0.03 M Calcium chloride dihydrate, 0.12 M Ethyleneglycol, 0.05 M Tris (base); 0.05 M BICINE pH 8.5, 20% v/v Glycerol; 10% w/v PEG 4,000

Crystal Properties
Matthews coefficient	Solvent content
2.98	58.73

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 108.926	α = 90
b = 131.291	β = 108.78
c = 138.269	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		2022-05-04	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	DIAMOND BEAMLINE I24	0.708459	Diamond	I24

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	2.9	36.23	97.82	0.08566	0.978	8	2		40129			42.81

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	2.9	3	86.49		0.4035	0.526	2.19

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 (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	FREE R-VALUE	7ACZ	2.9	36.23	40000	3839	97.82	0.2459	0.2438	0.2456	0.2869	0.2511	54.32

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]

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	8352
Nucleic Acid Atoms
Solvent Atoms	32
Heterogen Atoms	2

Software

Software
Software Name	Purpose
PHENIX	refinement
DIALS	data reduction
pointless	data scaling
PHASER	phasing