6UI1

Crystal structure of BoNT/A-LCHn domain in complex with VHH ciA-D12, ciA-B5, and ciA-H7

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	3V0A

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.4	291	11 % PEG 20,000 and 0.1 M sodium cacodylate

Crystal Properties
Matthews coefficient	Solvent content
2.91	57.74

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 141.04	α = 90
b = 89.36	β = 118.93
c = 143.69	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	CCD	ADSC QUANTUM 315r		2014-05-01	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL7-1	1.12709	SSRL	BL7-1

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	Rrim I (All)	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	2.2	37.74	95	0.049	0.069	0.049	0.997	10.2	2.6		75271			29.5981913921

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Rpim I (All)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.2	2.25			0.208	0.207	0.965

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	FREE R-VALUE	3V0A	2.20000858936	37.1635590417	1.33647799258	75238	3774	94.7832550171	0.182987256077	0.180585060409	0.228599973817	34.9171563415

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]

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	13.8050176631
f_angle_d	1.08750663266
f_chiral_restr	0.0459275854207
f_bond_d	0.00848919676619
f_plane_restr	0.00471204337883

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	9564
Nucleic Acid Atoms
Solvent Atoms	524
Heterogen Atoms

Software

Software
Software Name	Purpose
PHENIX	refinement
PHENIX	refinement
Blu-Ice	data collection
SCALA	data scaling
PHASER	phasing
XDS	data reduction

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.