Fig. 7: Metal1D method.
From: Metal3D: a general deep learning framework for accurate metal ion location prediction in proteins

a Coordination environment extraction from LINK records of PDB files and probability map generation b Site prediction, showing examples for a Zn2+ binding site, correctly predicted, and unlikely Zn2+ binding site, discarded in the putative site scoring step because of low probability of the metal site, and an amino acid for which Zn2+ binding is impossible, discarded in the residue scoring step because of low score of the amino acid.