Experiment: 9GG7

Crystal structure of 14-3-3 sigma dC - C38N in complex with Tau pS324 peptide and covalent stabilizer 187

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	Other		a self-generated binary 14-3-3sdC-C38N/Tau complex

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP		277	Cocrystalization of 12 mg/ml protein, 2eq peptide and 1.8mM compound in 20 mM Sodium HEPES pH 7.5, 2 mM MgCl2, and 1.5 mM TCEP. Crystallization buffer: 0.19 M Calcium chloride dihydrate, 0.095 M Sodium HEPES pH 7.1, 5% glycerol, and28% PEG 400, mixed 1:1 with cocrystal mix

Crystal Properties
Matthews coefficient	Solvent content
2.57	52.19

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 69.24	α = 90
b = 62.472	β = 107.67
c = 69.291	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 PILATUS3 2M		2024-06-04	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE MASSIF-1	0.96546	ESRF	MASSIF-1

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	1.24	65.97	97.5	0.981	7.7	4.4		344584

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	1.24	1.26			0.414

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	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)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	1.24	45.38	1.34	141935	7060	89.17	0.2209	0.2198	0.2267	0.2418	0.2495	RANDOM

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	13.356
f_angle_d	1.751
f_chiral_restr	0.096
f_plane_restr	0.02
f_bond_d	0.013

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3851
Nucleic Acid Atoms
Solvent Atoms	398
Heterogen Atoms

Software

Software
Software Name	Purpose
DIALS	data collection
Aimless	data scaling
PHASER	phasing
REFMAC	refinement
Coot	model building
BUSTER	refinement