kd_structure_crossmatch: 19

Aptamer-amenability + design gold: targets where affinity (Kd) AND binding location (3D co-structure) are both known. For these you can map the epitope and place modifications/linkers. thrombin is the standout (24 aptamers x 24 structures). Source: corpus Kd x PDB crossmatch.

Data license: CC BY 4.0 · Data source: apt-scout automated curation pipeline (E. Dohi, NCNP) — values harvested from public databases; raw source stored per target

This data as json

rowid	target	n_kd_records	n_structures	pdb_ids
19	Coagulation Factor IXa (FIXa)	2	1	8EPK