hetero-bifunctional

dCBP-1 is a chemical degrader of p300/CBP. dCBP-1 hijacks the E3 ubiquitin ligase CRBN for selective degradation of p300/CBP. Degradation of p300/CBP by dCBP-1 leads to effective multiple myeloma cell killing.

Vepdegestrant (ARV-471) is a selective and highly potent estrogen receptor (ER, ESR1) PROTAC degrader with strong degrading activity against the ER protein. By directly degrading the ER protein rather than merely antagonizing its activity, vepdegestrant effectively inhibits the ER signaling pathway and demonstrates significant antitumor activity in ER-positive (ER⁺) breast cancer, with a DC50 value of approximately 2 nM. It is particularly effective against tumors harboring ESR1 mutations.

Sulfo-SMCC sodium, a widely utilized non-cleavable, hetero-bifunctional crosslinker for antibody-drug conjugates (ADCs), features both N-hydroxysuccinimide (NHS) ester and maleimide groups. These functionalities enable it to specifically react with primary amines and sulfhydryl groups, respectively.

BOC-NH-PEG-NH2 (MW 40000) (Boc-NH-PEG-Amine (MW 40000)) is a linear hetero-bifunctional PEG compound, featuring a Boc-protected amine at one end and an amino group at the other. It serves as a critical crosslinker with a PEG chain.