530588 IκB Ubiquitination Inhibitor, GS143 - Calbiochem

530588
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      Overview

      Replacement Information

      Key Specifications Table

      Empirical Formula
      C₂₈H₁₉FN₂O₄

      Pricing & Availability

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      5.30588.0001
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          Glass bottle 10 mg
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          Description
          OverviewA cell-permeable trisubstituted oxo-dihydropyrazolyl-benzoic acid that selectively inhibits the E3 ligase complex SCFβTrCP1-mediated ubiquitination of phosphorylated IκBα (IC50 = 5.2 µM), displaying little inhibitory potency against IKKβ-catalyzed IκBα phosphorylation, MDM2-mediated p53 ubiquitination, or the protease activities of cathepsin B, chymotrypsin, 20S & 26S proteasome (IC50 >100 µM). Effectively inhibits TNFα- and LPS-stimulated NF-κB transcription in HEK293, HT-29, and THP-1 cultures (IC50 from 2.1 to 10.5 µM). Intranasal administration (32 µg/20 µL/mouse) among OVA-sensitized mice 2 h prior to OVA challenge via inhalation greatly suppress NF-κB activation in lung tissue and airway inflammation in vivo. GS143 most likely prevents SCFβTrCP1 from interacting with phosphorylated IκBα without inhibiting SCFβTrCP1 E3 ligase activity directly.
          Catalogue Number530588
          Brand Family Calbiochem®
          Synonyms4-(3-Benzyl-4-(5-(2-fluoro-phenyl)-furan-2-ylmethylene)-5-oxo-4,5-dihydropyrazol-1-yl)-benzoic acid, 4-(3-Benzyl-4-((5-(2-fluorophenyl)furan-2-yl)methylene)-5-oxo-4,5-dihydro-1H-pyrazol-1-yl)benzoic acid, GS 143
          References
          ReferencesHirose, K., et al. 2008. Biochem. Biophys. Res. Commun. 374, 507.
          Nakajima, H., et al. 2008. Biochem. Biophys. Res. Commun. 368, 1007.
          Product Information
          FormDark red powder
          Hill FormulaC₂₈H₁₉FN₂O₄
          Chemical formulaC₂₈H₁₉FN₂O₄
          Structure formula ImageStructure formula Image
          Applications
          Biological Information
          Primary Targetphosphorylated IκBα
          Purity≥97% by HPLC
          Physicochemical Information
          Cell permeableY
          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 3 months at -20°C.
          Packaging Information
          Packaged under inert gas Packaged under inert gas
          Transport Information
          Supplemental Information
          Specifications

          Documentation

          IκB Ubiquitination Inhibitor, GS143 - Calbiochem SDS

          Title

          Safety Data Sheet (SDS) 

          References

          Reference overview
          Hirose, K., et al. 2008. Biochem. Biophys. Res. Commun. 374, 507.
          Nakajima, H., et al. 2008. Biochem. Biophys. Res. Commun. 368, 1007.
          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.

          Revision13-June-2014 JSW
          Synonyms4-(3-Benzyl-4-(5-(2-fluoro-phenyl)-furan-2-ylmethylene)-5-oxo-4,5-dihydropyrazol-1-yl)-benzoic acid, 4-(3-Benzyl-4-((5-(2-fluorophenyl)furan-2-yl)methylene)-5-oxo-4,5-dihydro-1H-pyrazol-1-yl)benzoic acid, GS 143
          DescriptionA cell-permeable trisubstituted oxo-dihydropyrazolyl-benzoic acid that selectively inhibits the E3 ligase complex SCFβTrCP1-mediated ubiquitination of phosphorylated IκBα (IC50 = 5.2 µM), displaying little inhibitory potency against IKKβ-catalyzed IκBα phosphorylation, MDM2-mediated p53 ubiquitination, or the protease activities of cathepsin B, chymotrypsin, 20S & 26S proteasome (IC50 >100 µM). Cellular IκBα degradation blockage by GS143 treatment (complete inhibition against TNFα-induced degradation with 30 min 20 µM drug pretreatment in in HeLa S3 and HT29 cultures) effectively inhibits TNFα- and LPS-stimulated NF-κB transcription in HEK293, HT-29, and THP-1 cultures (IC50 from 2.1 to 10.5 µM). Intranasal administration (32 µg/20 µL/mouse) among OVA-sensitized mice 2 h prior to OVA challenge via inhalation greatly suppress OVA challenge-induced NF-κB activation in lung tissue (> 90% inhibition of nuclear NF-κB p65 DNA-binding activity 2 h post challenge) and airway inflammation (>80% reduction in eosinophils & lymphocytes in BALF 48 h post challenge) in vivo. GS143 most likely prevents SCFβTrCP1 from interacting with phosphorylated IκBα without inhibiting SCFβTrCP1 E3 ligase activity directly, as no apparent accumulation of another known SCFβTrCP1 substrate β-catenin is seen in HeLa S3 cells upon GS143 treatment (up to 20 µM for 3 h).
          FormDark red powder
          Intert gas (Yes/No) Packaged under inert gas
          Chemical formulaC₂₈H₁₉FN₂O₄
          Structure formulaStructure formula
          Purity≥97% by HPLC
          SolubilityDMSO (25 mg/ml). Use only fresh DMSO for reconstitution.
          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 3 months at -20°C.
          Toxicity Standard Handling
          ReferencesHirose, K., et al. 2008. Biochem. Biophys. Res. Commun. 374, 507.
          Nakajima, H., et al. 2008. Biochem. Biophys. Res. Commun. 368, 1007.