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. 2020 Nov 11;11:5716. doi: 10.1038/s41467-020-19513-2

Fig. 3. Processing the TRPC4 membrane channel using a deliberately hampered picking model.

Fig. 3

a To simulate low quality picking, only 10% of the initial crYOLO picks were used while the remaining 90% were re-positioned randomly (left). After the feedback loop crYOLO reliably picks the TRPC4 particles (right). b Total amount of 2D class averages produced in the first iteration of the feedback loop (top) and 21 representative averages produced in the final iteration of the feedback loop (bottom). c Progression of the number of particles labeled “good” when applying the intermediate picking models of the feedback loop to a fixed subset of 500 micrographs. The curve flattens out in the final iterations, indicating the convergence of the feedback loop optimization. d Fourier shell correlation (FSC) curves of the individual 3D reconstructions computed from particles labeled “good” (also see c). e Representative α-helix (amino acids 600–615) illustrating the improvement of the density when using the final (bottom) compared to the initial (top) picking model. f 3D reconstruction of TRPC4 computed from 500 micrographs using the optimized picking model.