Fig. 9: Sketch of model.
From: Metal3D: a general deep learning framework for accurate metal ion location prediction in proteins

Residue centered zinc densities are predicted based on input environment. Number of layers not to scale. Blue tensor sizes indicate number of channels and size of grid (always 32 × 32 × 32) Convolutional filters (red) are trained and extract information (3 × 3 × 3 convolutions) or aggregate information (16 × 16 × 16 convolution).