Table 2.

Input data of the models

Input no.	Source, descriptor (size)	Description of input
1	Complex, intermolecular distance maps 2 (48 × 6 × 2a)	Distances (Å) between N backbone atoms of 24–48 binding site residues and 6 peptide ligand residues. Distances between O backbone atoms of 24–48 binding site residues and 6 peptide ligand residues. These two distance maps are concatenated together in the depth dimension
2	Binding site, amino acid types (1D array, 48a)	Amino acid types of residues of a binding site.
3	Binding site, secondary structure types (1D array, 48a)	Secondary structure types of residues of a binding site.
4	Peptide, intramolecular distance maps 1 (6 × 6 × 2)	Distances between N backbone atoms of peptide ligand residues. Distances between O backbone atoms of peptide ligand residues. These two distance maps are concatenated together in the depth dimension
5	Complex, label of PPI: homo- or hetero-oligomeric (1)	Zero or one labeling homo- or hetero-oligomeric type of PPIFs.

^aZero padding is used if the number of binding site residues is less than 48.