PROTACERDegrader-2 serves as a synthesis intermediate for the production of PAC, a compound that incorporates the ADCs linker and PROTACs, which are subsequently conjugated to an antibody. PAC, exhibits a greater capability to degrade estrogen receptor-alpha (ERα) compared to PROTAC (without the presence of an antibody)[1].
PROTACERα Degrader-2 comprises a cIAP1 ligand binding group, a linker and an estrogen receptor α (ERα) binding group. PROTACERα Degrader-2 is an ERα degrader. Maximal ERα degradation at 30 μM concentration in human mammary tumor MCF7 cells. Degradation inducers based on cIAP1 are called specific and non-genetic IAP-dependent protein erasers (SNIPERs)[1].
PROTAC BRD4 Degrader-10, also known as compound 8b, is a dual ligand-based PROTAC that combines ligands for von Hippel-Lindau and BRD4. To degrade the BRD4 protein in PC3 prostate cancer cells, PROTAC BRD4 Degrader-10 can be conjugated with STEAP1 and CLL1 antibodies, with respective DC 50 values of 1.3 nM and 18 nM.
PROTAC BRD4 Degrader-15 is a chemical compound consisting of a PROteolysis TArgeting Chimera (PROTAC) linked to ligands specific to von Hippel-Lindau and BRD4. It exhibits an IC50 of 7.2 nM for BRD4 BD1 and 8.1 nM for BRD4 BD2. Additionally, PROTAC BRD4 Degrader-15 demonstrates potent degradation activity against the BRD4 protein in PC3 prostate cancer cells.
PROTAC BRD4 Degrader-5 is a PROTAC-based BRD4 degrader. PROTAC BRD4 Degrader-5 can potent degrade BRD4 in HER2 positive and negative breast cancer cell lines[1].
PROTAC Mcl1 degrader-1 induces the ubiquitination and proteasomal degradation of Mcl-1 by introducing the E3 ligase cereblon (CRBN)-binding ligand pomalidomide to Mcl-1 inhibitor S1-6 with μM-range affinity. PROTAC Mcl1 degrader-1, a proteolysis targeting chimera (PROTAC), is a potently and selectively Mcl-1 inhibitor with an IC50 of 0.78 μM.
PROTAC Sirt2 Degrader-1 is a SirReal-based PROTAC, acts as a Sirt2 degrader, composed of a highly potent and isotype-selective Sirt2 inhibitor, a linker, and a bona fide cereblon ligand for E3 ubiquitin ligase. PROTAC Sirt2 Degrader-1 shows an IC50 of 0.25 μM for Sirt2, with no effect on Sirt1 Sirt3 (IC50s > 100 μM)[1].
PROTAC Bcl2 degrader-1 is a PROTAC, which potently and selectively induces the degradation of Mcl-1 (IC50: 11.81 μM) and Bcl-2 (IC50: 4.94 μM; DC50: 3.0 μM).
PROTAC MDM2 Degrader-3 is a compound that leverages PROTAC technology to degrade MDM2. It consists of a highly effective MDM2 inhibitor, a linker, and the MDM2 ligand for E3 ubiquitin ligase[1].
PROTAC CDK9 degrader-2 (compounds 11c) is a potent and selective CDK9 degrader based on PROTAC, with an IC50 of 17 μM in MCF-7 cell lines. Natural product Wogonin binds ubiquitin E3 ligase cereblon (CRBN) via a linker to form PROTAC[1].
PROTACERDegrader-3, an intermediate for the synthesis of PAC, specifically compound LP2. PAC serves as the linker for ADCs and PROTACs that are conjugated to an antibody. Notably, when PAC is conjugated to an antibody, it exhibits enhanced degradation of estrogen receptor-alpha (ERα) compared to PROTAC alone [1].