mPEG4-Val-Ala-PAB is an ADC linker featuring a hydrophilic PEG spacer, a Val-Ala dipeptide, and a p-aminobenzyl (PAB) group. The benzylic alcohol on the PAB can be used to attach with reactive groups such as PNP for conjugation with drug payloads. The Val-Ala dipeptide is cleaved by proteases to release a given drug payload via an elimination mechanism within the PAB group.
Usually ships within 24 hours.