PFI-3

Catalog No.S7315 Batch:S731502

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Technical Data

Formula

C19H19N3O2
Molecular Weight 321.37 CAS No. 1819363-80-8
Solubility (25°C)* In vitro DMSO 64 mg/mL (199.14 mM)
Water Insoluble
Ethanol Insoluble
In vivo (Add solvents to the product individually and in order)
Clear solution
5% DMSO 95% Corn oil
0.38mg/ml Taking the 1 mL working solution as an example, add 50 μL of 7.6 mg/ml clear DMSO stock solution to 950 μL of corn oil and mix evenly. The mixed solution should be used immediately for optimal results. 
Clear solution
5%DMSO 40%PEG300 5%Tween80 50%ddH2O
3.85mg/ml Taking the 1 mL working solution as an example, add 50 μL of 77 mg/ml clarified DMSO stock solution to 400 μL of PEG300, mix evenly to clarify it; add 50 μL of Tween80 to the above system, mix evenly to clarify; then continue to add 500 μL of ddH2O to adjust the volume to 1 mL. The mixed solution should be used immediately for optimal results. 
* <1 mg/ml means slightly soluble or insoluble.
* Please note that Selleck tests the solubility of all compounds in-house, and the actual solubility may differ slightly from published values. This is normal and is due to slight batch-to-batch variations.
* Room temperature shipping (Stability testing shows this product can be shipped without any cooling measures.)

Preparing Stock Solutions

Biological Activity

Description PFI-3 is a selective chemical probe for SMARCA bromodomains, including SMARCA2, SMARCA4 and PB1(5) bromodomains.
Targets
PB1(5) bromodomains [1] SMARCA4 [4]
(Cell-free assay)		 SMARCA2B [4]
(Cell-free assay)		 SMARCA2A [4]
(Cell-free assay)
55 nM(Kd) 72 nM(Kd) 110 nM(Kd)
In vitro PFI-3 shows a significant selectivity for PB1(5) and SMARCA2/4 over 36 other tested kinases[1]. PFI-3 is a potent and cell active protein interaction inhibitor that selectively binds to essential BAF bromodomains. PFI-3 is screened in a commercial screening panel comprising 102 cellular receptors as well as 30 enzyme assays, revealing only interactions against four GPCRs with micromolar affinity and no significant additional interactions outside the BRD family, confirming its excellent broader pharmacological selectivity. Stability measurements confirmed that PFI-3 has a half-life in aqueous solutions exceeding 7 days at 37°C. In long-term experiments, PFI-3 significantly altered gene expression programs that are important for differentiation of stem cells. PFI-3 mimics the effect of Brg1 deletion, resulting in an increase of the repressive H3K27me3 mark at the TSSs and Stat3 binding sites of these genes[2]. PFI-3 has a half-life of >250 h in PBS, pH 7.4, at 20 °C[3].

Protocol (from reference)

Cell Assay:

[2]
  • Cell lines

    trophoblast stem cells

  • Concentrations

    2 μM

  • Incubation Time

    24 h

  • Method

    TSC are cultured in stemness or differentiation conditions and treated with 2 μM PFI-3 or 10 μM control compound or indicated concentrations for 24 hours or during the entire differentiation induction (4 days), respectively. In case of the differentiation samples, the PFI-3 or control compound exposure started 1 day before the induction of differentiation. RNA was isolated as for the ESC samples.

Customer Product Validation

Data from [Data independently produced by , , Exp Cell Res, 2018, 364(2):191-197]

Selleck's PFI-3 has been cited by 13 publications

RNF138 inhibits late inflammatory gene transcription through degradation of SMARCC1 of the SWI/SNF complex [ Cell Rep, 2023, 42(2):112097] PubMed: 36800290
Brahma-related gene 1 acts as a profibrotic mediator and targeting it by micheliolide ameliorates peritoneal fibrosis [ J Transl Med, 2023, 21(1):639] PubMed: 37726857
Brahma-related gene 1 acts as a profibrotic mediator and targeting it by micheliolide ameliorates peritoneal fibrosis [ J Transl Med, 2023, 21(1):639] PubMed: 37726857
Actionable Cytopathogenic Host Responses of Human Alveolar Type 2 Cells to SARS-CoV-2 [ Mol Cell, 2020, 80(6):1104-1122.e9] PubMed: 33259812
Dual roles of chromatin remodeling protein BRG1 in angiotensin II-induced endothelial-mesenchymal transition [ Cell Death Dis, 2020, 11(7):549] PubMed: 32683412
BRG1 Stimulates Endothelial Derived Alarmin MRP8 to Promote Macrophage Infiltration in an Animal Model of Cardiac Hypertrophy [ Front Cell Dev Biol, 2020, 8:569] PubMed: 32733885
Chemical Genetics Screen Identifies Epigenetic Mechanisms Involved in Dopaminergic and Noradrenergic Neurogenesis in Zebrafish. [ Front Genet, 2020, 11:80] PubMed: 32158467
The maternal to zygotic transition regulates genome-wide heterochromatin establishment in the zebrafish embryo [ Nat Commun, 2019, 10(1):1551] PubMed: 30948728
Dynamic reversal of random X-Chromosome inactivation during iPSC reprogramming. [ Genome Res, 2019, 29(10):1659-1672] PubMed: 31515287
Targeting CDK9 Reactivates Epigenetically Silenced Genes in Cancer [Zhang H, et al. Cell, 2018, 175(5):1244-1258] PubMed: 30454645

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SHIPPING AND STORAGE
Selleck products are transported at room temperature. If you receive the product at room temperature, please rest assured, the Selleck Quality Inspection Department has conducted experiments to verify that the normal temperature placement of one month will not affect the biological activity of powder products. After collecting, please store the product according to the requirements described in the datasheet. Most Selleck products are stable under the recommended conditions.

NOT FOR HUMAN, VETERINARY DIAGNOSTIC OR THERAPEUTIC USE.