Scientific capability / Subcellular Drug Partitioning

Whole-cell exposure can hide the concentration at the target.

A small molecule can enter a cell and still distribute unevenly between its compartments. BioTwin’s partitioning models examine how charge, pKa, membrane potential and pH trapping could affect mitochondrial or lysosomal exposure.

Current work Computational partitioning models

Check a compartment hypothesis All scientific capabilities

Ask where the molecule accumulates

A whole-cell measurement gives a useful total. A compartment model asks how that total could be distributed under the specified conditions. The aim is to identify whether the intended target may see a different exposure from the bulk cellular estimate.

Treat accumulation as a hypothesis to measure

Current support is computational partitioning analysis. Results depend on the molecule, compartment assumptions and calibration. Modeled accumulation does not establish physical target access or engagement, and the method is not a general delivery model for mRNA, vectors or other large modalities.

Separate the next two questions

First, can the program establish relevant tissue and cellular exposure? Then, does the compartment distribution support the proposed target mechanism? Keeping those questions separate can reveal which measurement is missing before a distribution model becomes a design claim.

Does the cell-level measurement answer the target question?

Identify the small molecule, target compartment and suspected distribution mechanism to scope a partitioning assessment.

Check a compartment hypothesis