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Total Synthesis of Self-Assembling Semi-Synthetic Proteins Utilizing a Dendritic Solubility Tag

Hati, K. C.; Sandanaraj, B.

2026-07-27 bioengineering
10.64898/2026.07.24.740575 bioRxiv
Show abstract

The chemical synthesis of well-defined, self-assembling semi-synthetic proteins (SSPs) has attracted growing interest in recent years. Approaches such as micelle-assisted protein-labeling technology (MAPLabTech) and supramolecule-assisted protein-labeling technology (SAPLabTech) have been used to generate a wide range of SSPs. The central challenge in synthesizing SSPs is solubilizing a hydrophobic chemical probe in aqueous medium prior to bioconjugation. Both MAPLabTech and SAPLabTech rely on non-covalent interactions to solubilize hydrophobic probes and present certain limitations. The present study introduces a complementary chemical strategy in which a hydrophobic chemical probe is covalently tagged with a cleavable, water-soluble dendritic domain. This covalent tagging renders the probe fully water-soluble, enabling quantitative bioconjugation to yield monomeric semi-synthetic proteins. Subsequent, selective removal of the solubility tag converts the hydrophilic semi-synthetic proteins into facially amphiphilic, semi-synthetic proteins.

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"Similar papers" are the closest papers from that journal in the model's embedding space. They show what the match is built on, but the ranking comes mostly from a classifier over the whole training set, not from these examples alone.