Fmoc-Ala-Ala-PAB is a cleavable ADC linker. Fmoc-Ala-Ala-PAB can be used in the synthesis of antibody-drug conjugates (ADCs).
ADCs are comprised of an antibody to which is attached an ADC cytotoxin through an ADC linker[1].
References:
[1]. Wayne C Widdison, et al. Development of Anilino-Maytansinoid ADCs that Efficiently Release Cytotoxic Metabolites in Cancer Cells and Induce High Levels of Bystander Killing. Bioconjug Chem. 2015 Nov 18;26(11):2261-78.