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Details

Stereochemistry ABSOLUTE
Molecular Formula C23H25ClN4O2S
Molecular Weight 456.988
Optical Activity UNSPECIFIED
Defined Stereocenters 1 / 1
E/Z Centers 0
Charge 0

SHOW SMILES / InChI
Structure of JQ1

SMILES

CC1=NN=C2[C@H](CC(=O)OC(C)(C)C)N=C(C3=C(SC(C)=C3C)N12)C4=CC=C(Cl)C=C4

InChI

InChIKey=DNVXATUJJDPFDM-KRWDZBQOSA-N
InChI=1S/C23H25ClN4O2S/c1-12-13(2)31-22-19(12)20(15-7-9-16(24)10-8-15)25-17(11-18(29)30-23(4,5)6)21-27-26-14(3)28(21)22/h7-10,17H,11H2,1-6H3/t17-/m0/s1

HIDE SMILES / InChI

Description

(+)-JQ1 is a selective and potent inhibitor of Bromodomain and Extra-Terminal motif (BET) proteins. These are important epigenetic regulators facilitating the transcription of genes in chromatin areas linked to acetylated histones. (+)-JQ1 engages the bromodomain pocket in a manner that is competitive with acetylated peptide binding, thereby causing the displacement of BET proteins from chromatin. However, the inhibitor’s half life is only one hour, so it has short-lasting effects.

CNS Activity

Originator

Approval Year

Targets

Primary TargetPharmacologyConditionPotency
33.0 nM [IC50]
49.0 nM [Kd]
128.4 nM [Kd]
59.5 nM [Kd]
190.1 nM [Kd]

Conditions

ConditionModalityTargetsHighest PhaseProduct

PubMed

Sample Use Guides

In Vivo Use Guide
Unknown
Route of Administration: Unknown
In Vitro Use Guide
JQ1 displaces BET domain containing proteins such as BRD4 from nuclear chromatin in vitro, induces squamous cell differentiation and growth arrest in NUT midline carcinoma (NMC) cells and exhibits antitumour activity in xenograft models of NMC. (+)-JQ1 binds to BRD4-BD1 with a Kd of approximately 50 nM and to BRD4-BD2 with a Kd of 90 nM.