Foldcomp compresses protein structures with torsion angles effectively. It compresses the backbone atoms to 8 bytes and the side chain to additionally 4-5 byes per residue, thus an averaged-sized protein of 350 residues requires ~6kb.
Foldcomp library compressed the #AlphaFold/Uniprot from 23TB to 950GB at an avg. loss of <0.5Å; decompresses ~200 structures per second per core