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D 4476 Casein Kinase inhibitor

Name: D 4476
Brand: Selleck Chemicals
SKU: S7642
Availability: InStock
Rating: 5 (21 reviews)

Cat.No.S7642

D 4476 is a potent, selective, and cell-permeant CK1 (casein kinase 1) inhibitor with IC50 of 200 nM and 300 nM in a cell-free assay for CK1 from Schizosaccharomyces pombe and CK1δ, respectively. Also acts as an ALK5 inhibitor with IC50 of 500 nM.

Chemical Structure

Molecular Weight: 398.41

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Quality Control

Batch: Purity: 99.73%

99.73

Related Targets	Dehydrogenase HSP Transferase P450 (e.g. CYP17) PDE phosphatase PPAR Vitamin Carbohydrate Metabolism Mitochondrial Metabolism
Other Casein Kinase Inhibitors	Silmitasertib (CX-4945) Silmitasertib (CX-4945) sodium salt TBB IC261 (E/Z)-GO289 TTP 22 Longdaysin PF 4800567 Ellagic Acid hydrate 7-Hydroxy-4-methyl-8-nitrocoumarin

Cell Culture, Treatment & Working Concentration

Cell Lines	Assay Type	Concentration	Incubation Time	Formulation	Activity Description	PMID
A375 cells	Function assay	10-80 μM	48 h		Inhibition of CK1-MDM2 complex in human A375 cells assessed as increase in p21 protein level at 10 to 80 uM after 48 hrs by immunoblotting analysis
Click to View More Cell Line Experimental Data

Solubility

In vitro
Batch:

DMSO : 79 mg/mL (198.28 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO.)

Water : Insoluble

Ethanol : Insoluble

Molarity Calculator

Mass	Concentration	Volume	Molecular Weight
Mass value Mass unit	Concentration value Concentration unit	Volume value Volume unit	Molecular weight (g/mol)

Dilution Calculator Molecular Weight Calculator

In vivo batch selection In vivo Batch:
Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.
Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.
Clear solution	5%DMSO 1 Corn oil Validated by Selleck labs. Should you need adjustments to this formulation, contact our sales team for custom testing.	3.950mg/ml (9.91mM)	Taking the 1 mL working solution as an example, add 50 μL of 79 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.

In vivo Formulation Calculator (Clear solution)

Step 1: Enter information below (Recommended: An additional animal making an allowance for loss during the experiment)

Dosage: mg/kg

Average weight of animals: g

Dosing volume per animal: μL

Number of animals:

Step 2: Enter the in vivo formulation (This is only the calculator, not formulation. Please contact us first if there is no in vivo formulation at the solubility Section.)

% DMSO

% Tween 80

% ddH₂O

% DMSO

Calculation results:

Working concentration: mg/ml;

Method for preparing DMSO master liquid: mg drug pre-dissolved in μL DMSO ( Master liquid concentration mg/mL, Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug. )

Method for preparing in vivo formulation: Take μL DMSO master liquid, next addμL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH₂O, mix and clarify.

Method for preparing in vivo formulation: Take μL DMSO master liquid, next add μL Corn oil, mix and clarify.

Note: 1. Please make sure the liquid is clear before adding the next solvent.
2. Be sure to add the solvent(s) in order. You must ensure that the solution obtained, in the previous addition, is a clear solution before proceeding to add the next solvent. Physical methods such
as vortex, ultrasound or hot water bath can be used to aid dissolving.

Chemical Information, Storage & Stability

Molecular Weight	398.41	Formula	C₂₃H₁₈N₄O₃	Storage (From the date of receipt)	3 years-20°Cpowder
CAS No.	301836-43-1	Download SDF		Storage of Stock Solutions	1 year-80°Cin solvent 1 month-20°Cin solvent
Synonyms	N/A			Smiles	C1COC2=C(O1)C=CC(=C2)C3=C(NC(=N3)C4=CC=C(C=C4)C(=O)N)C5=CC=CC=N5

Mechanism of Action

Targets/IC₅₀/Ki	CK1 from Schizosaccharomyces pombe 200 nM CK1δ 300 nM ALK5 500 nM
In vitro	D4476 (10 μM) effectively inhibits CK1 and ALK5 with the activities of about 7% and 22% versus control group, respectively. In H4IIE hepatoma cells, D4476 specifically inhibits the phosphorylation of endogenous forkhead box transcription factor O1a (FOXO1a) on Ser322 and Ser325, without affecting the phosphorylation of other sites. D4476 induces cytotoxicity in ANBL6, INA6 and RPMI8226 lines; MM1S and U266 lines are less sensitive; and OPM1 line is totally resistant. High concentrations (50 μM) D4476 induced toxicity in all multiple myeloma (MM) lines. In MM cells, D4476 increases the protein levels of TP53, P27, and FADD, as well as the cell cycle progression and induction of apoptosis. Treatment of leukemia stem cells (LSCs) with D4476 shows highly selective killing of LSCs over normal HSPCs.
Kinase Assay	CK1 kinase assay
Kinase Assay	All protein kinase assays (25 μL) are carried out at room temperature (21℃). Assays are performed for 40 min using a Biomek 2000 Laboratory Automation Workstation in a 96-well format. The concentrations of magnesium acetate and [γ-^33P]ATP (800 cpm/pmol) in the assays are 10 mM and 0.1 mM, respectively. Assays are initiated with MgATP and stopped by the addition of 5 μL of 0.5 M orthophosphoric acid. Aliquots are then spotted on to P30 ﬁltermats, washed four times in 75 mM phosphoric acid to remove ATP, once in methanol, then dried and counted for radioactivity. CK1 δ (5-20 m-units), diluted in 20 mM Hepes, pH 7.5, 0.15 M NaCl, 0.1 mM EGTA, 0.1% (v/v) Triton X-100, 5 mM dithiothreitol, 50% (v/v) glycerol, is assayed against the peptide RRKDLHDDEEDEAMSITA in an incubation containing 20 mM Hepes, pH 7.5, 0.15 M NaCl, 0.1 mM EDTA, 5 mM DTT, 0.1% (v/v) Triton X-100 and 0.5 mM substrate peptide.
References	[1] https://pubmed.ncbi.nlm.nih.gov/14710188/ [2] https://pubmed.ncbi.nlm.nih.gov/24962017/ [3] https://pubmed.ncbi.nlm.nih.gov/24616378/ [4] https://pubmed.ncbi.nlm.nih.gov/12534346/

Applications

Methods	Biomarkers	Images	PMID
Western blot	MDM2 / p53 / p21 / E2F-1 / pRB		19759023

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