Maleimido-3,5-disuccinimidyl isophtalate

E3 Ligase: Maleimido-3,5-disuccinimidyl isophthalate does not directly recruit classical E3 ligases such as CRBN, VHL, IAP, or MDM2. It functions as a bifunctional crosslinker, enabling covalent attachment of proteins via thiol and amine groups, which can be used to study protein interactions that indirectly involve ubiquitination.

Target Protein: This compound targets cysteine residues through its maleimide group and primary amines through its N-hydroxysuccinimide esters, allowing the formation of stable protein conjugates. It is primarily employed for labeling or assembling protein complexes rather than directly inducing degradation of specific endogenous proteins.

Degradation Mechanism: Maleimido-3,5-disuccinimidyl isophthalate does not inherently promote protein degradation. Any turnover of conjugated proteins occurs indirectly through natural cellular pathways, predominantly via the ubiquitin-proteasome system, without engaging lysosomal degradation mechanisms.

• Molecular Glue Discovery: Maleimido-3,5-disuccinimidyl isophthalate serves as a versatile scaffold in identifying novel molecular glues. Its unique chemical structure facilitates the bridging of proteins, promoting targeted protein degradation by enhancing the interaction between E3 ligases and target proteins, thus aiding in the elucidation of new degradation pathways.

• Targeted Degradation Pathways: This compound is instrumental in studying targeted protein degradation mechanisms. By acting as a molecular glue, it assists researchers in the strategic recruitment of E3 ubiquitin ligases to specific substrates, enabling the selective degradation of proteins involved in disease processes.

• Protein-Protein Interaction Modulation: Leveraging its reactive groups, Maleimido-3,5-disuccinimidyl isophthalate is utilized to modulate protein-protein interactions. It enhances the stability and formation of protein complexes, offering insights into the dynamics of molecular glue-induced degradation, crucial for developing therapeutic strategies.

• Scaffold for Chemical Biology: As a chemical biology tool, this product aids in the design of bifunctional molecules that induce proximity between target proteins and degradation machinery. It supports the exploration of molecular glue strategies to selectively degrade proteins that are otherwise challenging to target.