BRD4/FKBP12 ligand 1
BRD4/FKBP12 ligand 1 is a heterobifunctional BRD4 and FKBP12 (Kd of 0.4 nM) ligand. BRD4/FKBP12 ligand 1 has positive cooperativity in BRD4 binding when pre-bound to FKBP12, and FKBP12-dependent cytotoxicity in cancer cells via the CellTrap effect. BRD4/FKBP12 ligand 1 can be used for the research of acute myeloid leukemia, multiple myeloma, prostate carcinoma.
For research use only. We do not sell to patients.
- Formula: C48H52Cl3N11O6S2
- Molecular Weight:1049.49
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Storage:
Please store the product under the recommended conditions in the Certificate of Analysis.
Biological Activity
Description
IC50 & Target
[1]|
FKBP12 0.4 nM (Kd) |
BRD4 |
Cellular Effect
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Cell Line
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Type | Value | Description | References |
|---|---|---|---|---|
| HEK-293T | IC50 |
2.6 nM
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Occupancy of intracellular FKBP12 in intact HEK293T cells assessed via NanoBRET intracellular target occupancy assay after 2 h incubation at 37°C/5% CO2.
Occupancy of intracellular FKBP12 in intact HEK293T cells assessed via NanoBRET intracellular target occupancy assay after 2 h incubation at 37°C/5% CO2.
|
2025.05.16.654562 |
| HEK-293T | IC50 |
653 nM
|
Occupancy of intracellular BRD4 in intact HEK293T cells assessed via NanoBRET intracellular target occupancy assay after 2 h incubation at 37°C/5% CO2.
Occupancy of intracellular BRD4 in intact HEK293T cells assessed via NanoBRET intracellular target occupancy assay after 2 h incubation at 37°C/5% CO2.
|
2025.05.16.654562 |
| MV4-11 | IC50 |
0.09 nM
|
Reduction of MV4-11 acute myeloid leukemia cell viability assessed via CellTiter-Glo assay after 5 day compound incubation under standard conditions.
Reduction of MV4-11 acute myeloid leukemia cell viability assessed via CellTiter-Glo assay after 5 day compound incubation under standard conditions.
|
2025.05.16.654562 |
| MV4-11 | IC50 |
103 nM
|
Reduction of MV4-11 acute myeloid leukemia cell viability assessed via CellTiter-Glo assay after 6 h pre-treatment with 200 nM FKBP12-specific PROTAC followed by 5 day compound incubation.
Reduction of MV4-11 acute myeloid leukemia cell viability assessed via CellTiter-Glo assay after 6 h pre-treatment with 200 nM FKBP12-specific PROTAC followed by 5 day compound incubation.
|
2025.05.16.654562 |
In Vitro
BRD4/FKBP12 ligand 1 (compound a1dj) (0.09-103 nM; 6 h, 5 days) potently reduces MV4-11 acute myeloid leukemia cell viability (IC50 = 0.09 nM) in a FKBP12-dependent manner, with a 1144-fold loss of potency when FKBP12 is depleted[1].
BRD4/FKBP12 ligand 1 (10-100 nM; 6 h, 6 h) represses MYC gene expression in MV4-11 acute myeloid leukemia cells at 10 nM and 100 nM, with this effect being dependent on FKBP12 expression[1].
BRD4/FKBP12 ligand 1 (0.4->480 nM; 5 days) potently reduces wild-type INA-6 human myeloma cell viability (IC50 = 0.4 nM), with nearly complete loss of cytotoxic activity in FKBP1A knock-out INA-6 cells[1].
BRD4/FKBP12 ligand 1 (1-1000 nM; 5 days) selectively reduces the population of PC3 prostate carcinoma cells in co-culture with non-transformed PNT1-A prostate epithelial cells at concentrations from 1 nM to 1000 nM, leaving PNT1-A cell numbers largely unaffected[1].
BRD4/FKBP12 ligand 1 binds to purified FKBP12 with high affinity (Kd = 0.4 nM) and exhibits >25-fold positive cooperative binding to purified BRD4 BD1 (Kd = 32 nM) and 7-fold positive cooperative binding to purified BRD4 BD2 (Kd = 70 nM) in the presence of 15 μM FKBP12, compared to weaker binding to BRD4 domains alone[1].
BRD4/FKBP12 ligand 1 induces ternary complex formation between eGFP-FKBP12 and His-BRD4 BD1 and between eGFP-FKBP12 and His-BRD4 BD2 in a purified protein system[1].
BRD4/FKBP12 ligand 1 potently occupies intracellular FKBP12 (IC50 = 2.6 nM) and weakly occupies intracellular BRD4 (IC50 = 653 nM) in intact HEK293T cells[1].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
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Cell Line:MV4-11 acute myeloid leukemia cells
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Concentration:0.09 nM, 103 nM (IC50 values); 200 nM (FKBP12-specific proteolysis-targeting chimera pre-treatment)
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Incubation Time:6 h (proteolysis-targeting chimera pre-treatment); 5 days (compound incubation)
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Result:Reduced MV4-11 cell viability with an IC50 of 0.09 nM under standard conditions.
When FKBP12 was depleted via proteolysis-targeting chimera pre-treatment, the IC50 increased to 103 nM, representing a 1144-fold reduction in potency.
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Cell Line:MV4-11 acute myeloid leukemia cells
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Concentration:10 nM, 100 nM; 200 nM (FKBP12-specific PROTAC pre-treatment)
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Incubation Time:6 h (PROTAC pre-treatment); 6 h (compound incubation)
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Result:At 10 nM, strongly reduced MYC expression relative to untreated cells; this reduction was attenuated when FKBP12 was depleted.
At 100 nM, reduced MYC expression relative to untreated cells, with attenuation of the effect observed upon FKBP12 depletion.
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Cell Line:INA-6 human myeloma cells (wild-type non-targeted control and FKBP1A knock-out)
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Concentration:0.4 nM (IC50 in wild-type cells); >480 nM (IC50 in FKBP1A knock-out cells)
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Incubation Time:5 days
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Result:Reduced wild-type INA-6 cell viability with an IC50 of 0.4 nM.
In FKBP1A knock-out INA-6 cells, cytotoxic effects were greatly diminished, with an IC50 of >480 nM.
Chemical Information
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Molecular Weight 1049.49
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Formula C48H52Cl3N11O6S2
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SMILES
O=C(NCCOCCN1C=C(COC[C@H]2CN(C([C@@]3([H])N([C@]2([H])CCC3)S(C4=CC(Cl)=CC(Cl)=C4)(=O)=O)=O)[C@@H](C)C5=NC=CC=C5)N=N1)C[C@@H]6N=C(C7=CC=C(Cl)C=C7)C8=C(SC(C)=C8C)N9C6=NN=C9C
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
Please store the product under the recommended conditions in the Certificate of Analysis.
Purity & Documentation
References
Calculators
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)