JQ1 Enantiomers Set

A cell-permeable I-BET (Cat. No. 401010) class of thienodiazepine derivative whose (S)-(+), but not (R)-(-), enantiomer is shown to target both bromodomains (BD1 & BD2) of BET (bromodomain and extra terminal) family members BRD2 (K_D = 128.4 nM for human BD1; ΔT_m^obs = 6.47 and 7.97 °C, respectively, for human BD1 and BD2), BRD3 (K_D = 59.5 and 82.0 nM, respectively, for human BD1 and BD2), BRD4 (K_D = 49.0 and 90.1 nM, respectively, for human BD1 and BD2), and BRD6/BRDT (K_D = 190.1, 44.1, 77.5, and 59.2 nM, respectively, for human BD1, human BD2, murine BD1, and murine BD2) in a Kac- (ε-N-acetylated lysine) competitive manner, exhibiting little affinity toward 23 other BD-containing proteins, including the single BD-containing BRD1 and BRD9, and little or no activity against a panel of more than 50 receptors, ion channels, and transporters. Effectively inhibits the oncogenic BRD4-NUT (Nuclear protein in testis) fusion protein-dependent NMC (NUT midline carcinoma) and c-Myc oncoprotein-dependent MM (multiple myeloma) proliferation both in cultures (IC₅₀<1 M) in vitro and in mice (50 mg/kg/day i.p.) in vivo. Also reported to cross the blood-testis boundary in male mice and effectively reduce testis mass, sperm count and motility (50 mg/kg; b.i.d. i.p.) in a reversible manner by targeting BRDT-mediated spermatogenesis without interfering hormone levels.

Cell permeable: yes

Primary Target
BRD4

Reversible: yes

Packaged under inert gas

Set contains 5 mg each of (S)-(+)-JQ1 enantiomer (540696-5MG) and (R)-(-) JQ1 enantiomer (500585-5MG)

Following reconstitution, aliquot and freeze 9-20°C). Stock solutions are stable for up to 3 months at -20°C.

Matzuk, M. M., et al. 2012. Cell.150, 673.
Delmore, J. E., et al. 2011 Cell.146, 904.

Filippakopoulos, P., et al. 2010. Nature.468, 1067.

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Toxicity: Standard Handling (A)