Cryo-EM structure of the human TRPC5 ion channel in complex with G alpha i3 subunits, class2
ELECTRON MICROSCOPY
Refinement
RMS Deviations
Key
Refinement Restraint Deviation
f_dihedral_angle_d
6.105
f_angle_d
0.791
f_chiral_restr
0.041
f_plane_restr
0.006
f_bond_d
0.004
Sample
Transient receptor potential
Specimen Preparation
Sample Aggregation State
PARTICLE
Vitrification Instrument
Cryogen Name
ETHANE
Sample Vitrification Details
3D Reconstruction
Reconstruction Method
SINGLE PARTICLE
Number of Particles
5344
Reported Resolution (Å)
3.91
Resolution Method
OTHER
Other Details
We combined two different maps from the same dataset (D_1300031718_em-additional-volume_P1.map.V4 and D_1300031718_em-additional-volume_P2.map.V4) to ...
We combined two different maps from the same dataset (D_1300031718_em-additional-volume_P1.map.V4 and D_1300031718_em-additional-volume_P2.map.V4) to generate a composite map (D_1300031718_em-volume_P1.map.V6).
The density of the G protein area could not be visualized clearly in the consensus map of this EM dataset. Therefore, we performed focused classification and local refinement to improve the density of the G protein area using symmetry expanded particles with C4 symmetry imposition, which required more number of particles. Finally, the number of particles used to reconstruct additional volume data 1 (D_1300031718_em-additional-volume_P1.map.V4) is 5,344 and the number of particles used to reconstruct additional volume data 2 (D_1300031718_em-additional-volume_P2.map.V4) is 205,343.
Furthermore, the resolution stated above is based on map resolution estimates calculated by a validation tool in Phenix, FSC (model) = 0.143.
