8CWE

20ns Temperature-Jump (Dark2) XFEL structure of Lysozyme Bound to N,N'-diacetylchitobiose

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1IEE

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	BATCH MODE	3	291	Lysozyme-inhibitor complex [20 mg/ml lysozyme plus 10 mg/ml N,N'-diacetylchitobiose dissolved in 0.1 M sodium acetate at pH 3.0] mixed with precipitant [28% (w/v) NaCl, 8% (w/v) PEG6000 and 0.1 M sodium acetate at pH 3.0] in a 1:1 ratio

Crystal Properties
Matthews coefficient	Solvent content
1.93	36.2

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 77.061	α = 90
b = 77.061	β = 90
c = 37.223	γ = 90

Symmetry
Space Group	P 43 21 2

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	291	CCD	MPCCD		2018-07-24	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	FREE ELECTRON LASER	SACLA BEAMLINE BL3	1.2468	SACLA	BL3

Serial Crystallography

Sample delivery method
Diffraction ID	Description	Sample Delivery Method
1		injection

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	1.48	30.74	99.98	0.994	11.287	162.5		3127348			15.32

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.48	1.51			0.823

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	1iee	1.48	30.74	1.36	19245	984	100	0.1308	0.1291	0.1624	19.57

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	12.5397
f_angle_d	1.2645
f_chiral_restr	0.084
f_bond_d	0.019
f_plane_restr	0.0114

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1001
Nucleic Acid Atoms
Solvent Atoms	95
Heterogen Atoms	36

Software

Software
Software Name	Purpose
PHENIX	refinement
PDB_EXTRACT	data extraction
cctbx.xfel	data reduction
cxi.merge	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.