MAK683-CH2CH2COOH

Target: This ligand targets embryonic ectoderm development protein EED within the PRC2 complex in biochemical or cellular target-engagement studies.

Mechanism of Action: Used as the target-protein recognition element, this ligand provides the binding interface for embryonic ectoderm development protein EED within the PRC2 complex. In PROTAC design, a derivatizable position on the ligand can be connected through an optimized linker to an E3 ligase ligand, such as a CRBN, VHL, or IAP recruiter, while preserving productive target engagement. The resulting bifunctional molecule brings embryonic ectoderm development protein EED within the PRC2 complex into proximity with the recruited E3 ligase, enabling ternary-complex formation. If the complex has favorable geometry and residence time, target lysine ubiquitination is promoted, leading to proteasome-dependent degradation in experimental systems.

• PROTAC Ligand for Cereblon Recruitment: MAK683-CH2CH2COOH can be used as a cereblon-recruiting warhead in PROTAC designs. Its conjugation to an appropriate target-binding moiety enables ternary complex formation, promoting ubiquitination and proteasome-dependent degradation of the selected protein. This supports systematic evaluation of degradation potency and selectivity across target classes.

• Linker Optimization for Degradation: The carboxyethyl substituent on MAK683-CH2CH2COOH provides a functional handle for linker engineering in PROTAC constructs. Researchers can vary linker length, rigidity, and attachment geometry to tune productive ternary complex assembly. This enables optimization of DC50/EC50 relationships and improved degradation kinetics while minimizing off-target ubiquitination.

• Mapping Degradation Mechanisms: MAK683-CH2CH2COOH-based PROTACs are suitable for mechanistic studies of targeted protein degradation. By comparing degradation outcomes with proteasome inhibition or ubiquitination pathway perturbation, investigators can validate dependency on the ubiquitin–proteasome system. These experiments help define the molecular determinants governing ternary complex stability and degradation efficiency.

• Designing Selective Protein Degraders: As a PROTAC component, MAK683-CH2CH2COOH can be paired with diverse ligands to generate degraders with tailored substrate profiles. Systematic screening of target-binding domains and PROTAC architectures can identify conditions that favor selective degradation over mere occupancy. This supports discovery of degradation-driven phenotypes for pathway interrogation and target validation.

MAK683-CH2CH2COOH is an EED-targeting ligand designed for EED-directed PROTAC construction. The CH2CH2COOH group provides a carboxylic acid handle for practical linker attachment.

Structure: MAK683-CH2CH2COOH is a MAK683-derived EED ligand bearing a CH2CH2COOH substituent that terminates in a carboxylic acid. The two-carbon alkyl acid extension serves as a polar linker-ready exit vector while retaining the MAK683 recognition scaffold.

Reactivity: The terminal carboxylic acid can be activated for amide coupling to amino-terminated alkyl, PEG, piperazine, or E3-ligase ligand intermediates. In EED-directed PROTAC design, this acid handle is the preferred conjugation point, while linker length and polarity should be optimized to preserve EED engagement and promote productive ternary-complex formation with CRBN, VHL, IAP, or other E3 ligands.