A reachable conformer needs a useful destination
RDKit already generates molecular conformers and supports geometric constraints. BioTwin’s target-focused analysis asks how a tether spans chosen recognition and reaction sites, with conformer sampling and separate enumeration of linker options. A candidate that reaches a distance still needs the orientation and steric clearance required by its intended chemistry.
Correcting the geometry reopened a design branch
In computational Lp(a) work, replacing a domain-center estimate with the relevant pocket-to-attachment geometry reopened a bivalent approach. Enumerated spacers could satisfy the revised span. That was a reason to investigate the architecture further; it did not demonstrate conformer occupancy, synthesized binding or functional activity.
Combine reach with access and reaction geometry
Fit/access analysis can test obstructions, while multivalent analysis can examine the arrangement of binding heads. The declared tether sampler omits some angular reaction chemistry, so that check remains separate. Failure in random-walk sampling also cannot rule out a preorganized linker. Compare the candidate architectures under matched assumptions and test the most informative ones physically.