Azido-PEG3-Maleimide
- Product NameAzido-PEG3-Maleimide
- CAS1858264-36-4
- MFC15H23N5O6
- MW369.37302
- EINECS
- MOL File1858264-36-4.mol
Usage And Synthesis
Azido-PEG3-Maleimide is provided as a kit of two vials. Azido-PEG3-Maleimide is not stable for storage; it needs to be made in situ by mixing Azido-PEG3-amine and Maleimide-NHS ester followed by shaking/ stirring for 30 minutes at room temperature. The maleimide group of the Azido-PEG3-Maleimide can react with a thiol group to form a covalent bond, enabling the connection of biomolecule with a thiol. Azide group enables Click Chemsitry reactions.
Azido-PEG3-maleimide is a PROTAC linker belonging to the PEG class, which can be used to synthesize PROTAC molecules. Azido-PEG3-maleimide is also a cleavable ADC linker containing 3-unit PEG, which can be used to synthesize antibody drug conjugates (ADCs).
PROTACs contain two different ligands connected by a linker; one is a ligand for an E3 ubiquitin ligase and the other is for the target protein. PROTACs exploit the intracellular ubiquitin-proteasome system to selectively degrade target proteins.
ADCs are comprised of an antibody to which is attached an ADC cytotoxin through an ADC linker.