(+)-JQ-1-PEG4-Azide serves as a triazolo-diazepine compound and reversible pan-BET family inhibitor. It competitively binds BRD4 bromodomains 1 and 2 against acetyl lysine, serving as a chemical probe for BET-mediated transcriptional regulation in oncogenesis. Azide engages in CuAAC and SPAAC reactions. The PEG4 spacer bolsters water solubility.
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