7JUP | pdb_00007jup

Structure of human TRPA1 in complex with antagonist compound 21

ELECTRON MICROSCOPY

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	6X2J

Sample
TRPA1 bound by antagonist compound 21

Specimen Preparation
Sample Aggregation State	PARTICLE
Vitrification Instrument	FEI VITROBOT MARK IV
Cryogen Name	ETHANE
Sample Vitrification Details	Triple blot. Put blot in vitroblot Apply 3.5ul to grid, wait 30sec, blot manually Apply 3.5ul to grid, wait 30sec, blot manually, apply final 3.5ul, final blot by vitrobot (3.5s)

3D Reconstruction
Reconstruction Method	SINGLE PARTICLE
Number of Particles	101265
Reported Resolution (Å)	3.05
Resolution Method	FSC 0.143 CUT-OFF
Other Details	No data beyond 4.4 A were used during refinement.
Refinement Type
Symmetry Type	POINT
Point Symmetry	C4

Map-Model Fitting and Refinement
Id	1 (6X2J)
Refinement Space	REAL
Refinement Protocol	FLEXIBLE FIT
Refinement Target
Overall B Value
Fitting Procedure
Details

Data Acquisition
Detector Type	GATAN K2 QUANTUM (4k x 4k)
Electron Dose (electrons/Å**2)	41.8

Imaging Experiment	1
Date of Experiment
Temperature (Kelvin)
Microscope Model	FEI TITAN KRIOS
Minimum Defocus (nm)
Maximum Defocus (nm)
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS	2.7
Imaging Mode	BRIGHT FIELD
Specimen Holder Model	FEI TITAN KRIOS AUTOGRID HOLDER
Nominal Magnification	165000
Calibrated Magnification
Source	FIELD EMISSION GUN
Acceleration Voltage (kV)	300
Imaging Details

EM Software
Task	Software Package	Version
PARTICLE SELECTION	cisTEM	1.0
IMAGE ACQUISITION	SerialEM
CTF CORRECTION	cisTEM
MODEL FITTING	Coot
MODEL FITTING	ISOLDE
INITIAL EULER ASSIGNMENT	cisTEM
FINAL EULER ASSIGNMENT	cisTEM
CLASSIFICATION	cisTEM
RECONSTRUCTION	cisTEM
RECONSTRUCTION	PHENIX
MODEL REFINEMENT	PHENIX
MODEL REFINEMENT	Coot

Image Processing
CTF Correction Type	CTF Correction Details	Number of Particles Selected	Particle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION		395169