LH846 is a selective inhibitor of casein kinase with IC50 values of 290 nM, 1.3 μM and 2.5 μM for CK1δ, ε and α, respectively. LH846 (3 or 10 μM) inhibits CKIδ-dependent phosphorylation of PER1 protein in HEK293T cells and to lengthen the circadian period in U2OS cells.
Cell Experiment | |
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Cell lines | HEK293T cells |
Preparation method | HEK293T cells were reversely transfected on 12-well plates by Lipofectamine 2000 with expression vectors for C-terminally 3XFlag-tagged PER1 protein and N-terminally HA-tagged CKIδ. The cells were treated with 3 or 10 μM LH846 or 0.1% DMSO for 7 h, and a part of the cell extract was analyzed by Western blot to detect the PER1-Flag protein. |
Concentrations | 3 or 10 μM |
Incubation time | 7 h |
Animal Experiment | |
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Animal models | |
Formulation | |
Dosages | |
Administration |
Species | Mouse | Rat | Rabbit | Guinea pig | Hamster | Dog |
Weight (kg) | 0.02 | 0.15 | 1.8 | 0.4 | 0.08 | 10 |
Body Surface Area (m2) | 0.007 | 0.025 | 0.15 | 0.05 | 0.02 | 0.5 |
Km factor | 3 | 6 | 12 | 8 | 5 | 20 |
Animal A (mg/kg) = Animal B (mg/kg) multiplied by | Animal B Km |
Animal A Km |
For example, to modify the dose of resveratrol used for a mouse (22.4 mg/kg) to a dose based on the BSA for a rat, multiply 22.4 mg/kg by the Km factor for a mouse and then divide by the Km factor for a rat. This calculation results in a rat equivalent dose for resveratrol of 11.2 mg/kg.
Molecular Weight | 316.81 |
Formula | C16H13ClN2OS |
CAS Number | 639052-78-1 |
Purity | >98% |
Solubility | DMSO: ≥ 30 mg/mL |
Storage | at -20°C |
A small molecule modulates circadian rhythms through phosphorylation of the period protein.
Lee JW, et al. Angew Chem Int Ed Engl. 2011 Nov 4;50(45):10608-11. PMID: 21954091.
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