506174 | p38 MAP Kinase Inhibitor XIX, Skepinone-L - Calbiochem

506174
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      Overview

      Replacement Information

      Pricing & Availability

      Catalog NumberAvailability Packaging Qty/Pack Price Quantity
      506174-5MG
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          Glass bottle 5 mg
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          Description
          OverviewA cell-permeable phenylamino-dibenzosuberone-diol with a rigid molecular structure specifically designed to target hydrophobic region I in p38α & p38β, but not in other kinases with bulky entrance-blocking gatekeeper residues. Shown to selectively inhibit p38α (IC50 = 5 nM; [ATP] = 100 µM) and p38β (97% inhibition at1 µM), while exhibiting little affinity toward 400 other kinase constructs, including p38δ, p38γ, Erk1/2/3/4/5/8, JNK1/2/3, and MEK1/2/3/4/6. Shown to prevent cellular HSP27 Ser82 phosphorylation upon p38 activation by Anisomycin (Cat. No. 176880) in HeLa (IC50 = 25 nM) or by TNF-α in THP-1 cultures. Unlike the ATP-binding site-targeting BIRB 796 (Cat. No. 506172) and SB 203580 (Cat. Nos. 559389, 559395, and 559398), Skepinone-L does not inhibit JNK-mediated c-Jun or ERK-dependent CREB phosphorylation in THP-1 cultures. Oral administration to D-Gal- (Cat. No. 34539) sensitized mice is reported to greatly reduce plasma TNF-α production upon LPS (Cat. No. 437625) challenge (by 77%; 3 mg/kg p.o.) in vivo.
          Catalogue Number506174
          Brand Family Calbiochem®
          Synonyms(2-(2,4-Difluorophenylamino)-7-[2R-,3-dihydroxypropoxy]-10,11-dihydro-dibenzo[a,d]-cyclohepten-5-one)
          References
          ReferencesKoeberle, S.C., et al. 2012. J. Med. Chem. 55, 5868.
          Koeberle, S.C., et al. 2011. Nat. Chem. Biol. 8, 141.
          Product Information
          FormLight yellow powder
          Hill FormulaC₂₄H₂₁F₂NO₄
          Chemical formulaC₂₄H₂₁F₂NO₄
          Structure formula ImageStructure formula Image
          Applications
          Biological Information
          Purity≥99% by HPLC
          Physicochemical Information
          Dimensions
          Materials Information
          Toxicological Information
          Safety Information according to GHS
          Safety Information
          Product Usage Statements
          Storage and Shipping Information
          Ship Code Ambient Temperature Only
          Toxicity Standard Handling
          Storage +2°C to +8°C
          Protect from Light Protect from light
          Do not freeze Ok to freeze
          Special InstructionsFollowing reconstitution, aliquot and freeze (-20°C). Stock solutions are stable for up to 6 months at -20°C.
          Packaging Information
          Packaged under inert gas Packaged under inert gas
          Transport Information
          Supplemental Information
          Specifications

          Documentation

          SDS

          Title

          Safety Data Sheet (SDS) 

          Certificates of Analysis

          TitleLot Number
          506174

          References

          Reference overview
          Koeberle, S.C., et al. 2012. J. Med. Chem. 55, 5868.
          Koeberle, S.C., et al. 2011. Nat. Chem. Biol. 8, 141.
          Data Sheet

          Note that this data sheet is not lot-specific and is representative of the current specifications for this product. Please consult the vial label and the certificate of analysis for information on specific lots. Also note that shipping conditions may differ from storage conditions.

          Revision04-July-2013 JSW
          Synonyms(2-(2,4-Difluorophenylamino)-7-[2R-,3-dihydroxypropoxy]-10,11-dihydro-dibenzo[a,d]-cyclohepten-5-one)
          DescriptionA cell-permeable phenylamino-dibenzosuberone-diol with a rigid molecular structure specifically designed to target p38α & p38β hydrophobic region I whose access is possible due to a small gatekeeper amino acid (Thr106 in human p38α/β ), but not in other kinases with bulky entrance-blocking gatekeeper residues. Shown to selectively inhibit p38α (IC50 = 5 nM; [ATP] = 100 µM) and p38β (97% inhibition at1 µM), while being less effective against JNK3, SLK, or CAMK2D (67%, 61%, and 57% inhibition, respectively, at 1 µM) and exhibiting little or no potency toward 328 other kinase constructs (IC50 >1 µM). Likewise, binding studies reveal selective affinity toward p38α (Kd = 1.5 nM) and p38β, but not 400 other kinase constructs, including p38δ, p38γ, Erk1/2/3/4/5/8, JNK1/2/3, and MEK1/2/3/4/6. Shown to prevent cellular HSP27 Ser82 phosphorylation upon p38 activation by Anisomycin (Cat. No. 176880) in HeLa (IC50 = 25 nM) or by TNF-α in THP-1 cultures (80 nM). Unlike BIRB 796 (2 µM; Cat. No. 506172), Skepinone-L does not inhibit JNK-mediated c-Jun Ser63 phosphorylation upon TNF-α stimulation in THP-1 cells, nor does Skepinone-L affect ERK-dependent CREB Ser133 phosphorylation in THP-1 upon PMA (Cat. No. 506172) treatment, whereas SB 203580 (4 µM; Cat. Nos. 559389, 559395, and 559398) is shown to inhibit. Oral administration to D-Gal- (Cat. No. 34539) sensitized mice 1h prior to 90 min LPS (Cat. No. 437625) challenge greatly reduces plasma TNF-α production (by 77%; plasma [inhibitor] = 240 nM; 3 mg/kg p.o.) in vivo.
          FormLight yellow powder
          Intert gas (Yes/No) Packaged under inert gas
          Chemical formulaC₂₄H₂₁F₂NO₄
          Structure formulaStructure formula
          Purity≥99% by HPLC
          SolubilityDMSO (100 mg/ml)
          Storage +2°C to +8°C
          Protect from light
          Do Not Freeze Ok to freeze
          Special InstructionsFollowing reconstitution, aliquot and freeze (-20°C). Stock solutions are stable for up to 6 months at -20°C.
          Toxicity Standard Handling
          ReferencesKoeberle, S.C., et al. 2012. J. Med. Chem. 55, 5868.
          Koeberle, S.C., et al. 2011. Nat. Chem. Biol. 8, 141.