Upstream binding-affinity databases, redistributed as downloaded, as the label sources for
the protein-ligand side of
hsjang0/k-fold-multimer-tuning.
Kept in its own repo rather than folded into hyosoon0/kfold-multimer-lmdb because these
are third-party databases under their own licenses and citation requirements, while that
repo holds data we derived. One license statement should not have to cover both.