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MitoSciences (MS966)

Phospho S293 PDH E1 alpha protein (PDHA1) ELISA Kit (ab115344)

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Overview

  • Product namePhospho S293 PDH E1 alpha protein (PDHA1) ELISA KitSee all Pyruvate Dehydrogenase E1-alpha subunit kits ...
  • Precision
    Intra-assay
    Sample n Mean SD CV%
    1 6 = 2.6%
    Inter-assay
    Sample n Mean SD CV%
    1 3 = 4.7%
  • Tests
    1 x 96 test
  • Sample type
    Cell culture extracts, Tissue Extracts
  • Assay typeQuantitative
  • Sensitivity
    = 63 µg/ml
  • Range
    63 µg/ml - 1000 µg/ml
  • Species reactivity
    Reacts with: Mouse, Rat, Cow, Human
  • Product overview

    ab115344 is an in vitro enzyme-linked immunosorbent assay to determine the levels of phospho S293 PDHA1 protein in cell and tissue lysates. The assay employs a mouse antibody specific for PDHA1 protein coated on a 96-well plate. Samples are pipetted into the wells and PDHA1 protein present in the sample is bound to the wells by the immobilized antibody. The wells are washed and a rabbit anti-phospho S293 PDHA1 protein detector antibody is added. After washing away unbound detector antibody, HRP-conjugated anti-rabbit antibody is pipetted into the wells. The wells are again washed, an HRP substrate solution (TMB) is added to the wells and color develops in proportion to the amount of phospho S293 PDHA1 protein bound. The developing blue color is measured at 600 nm. Optionally the reaction can be stopped by adding hydrochloric acid which changes the color from blue to yellow and the intensity can be measured at 450 nm.

  • Notes

    Store all components at 4°C. This kit is stable for 6 months from

    receipt. Unused microplate strips should be returned to the pouch containing the desiccant and resealed.

  • Tested applicationsELISA more details

Properties

  • FunctionThe pyruvate dehydrogenase complex catalyzes the overall conversion of pyruvate to acetyl-CoA and CO(2). It contains multiple copies of three enzymatic components: pyruvate dehydrogenase (E1), dihydrolipoamide acetyltransferase (E2) and lipoamide dehydrogenase (E3).
  • Tissue specificityUbiquitous.
  • Involvement in diseaseDefects in PDHA1 are a cause of pyruvate dehydrogenase E1-alpha deficiency (PDHAD) [MIM:312170]. An enzymatic defect causing primary lactic acidosis in children. It is associated with a broad clinical spectrum ranging from fatal lactic acidosis in the newborn to chronic neurologic dysfunction with structural abnormalities in the central nervous system without systemic acidosis.
    Defects in PDHA1 are the cause of X-linked Leigh syndrome (X-LS) [MIM:308930]. X-LS is an early-onset progressive neurodegenerative disorder with a characteristic neuropathology consisting of focal, bilateral lesions in one or more areas of the central nervous system, including the brainstem, thalamus, basal ganglia, cerebellum, and spinal cord. The lesions are areas of demyelination, gliosis, necrosis, spongiosis, or capillary proliferation. Clinical symptoms depend on which areas of the central nervous system are involved. The most common underlying cause is a defect in oxidative phosphorylation. LS may be a feature of a deficiency of any of the mitochondrial respiratory chain complexes.
  • Post-translational
    modifications    Phosphorylation at Ser-293 by PDK family kinases blocks the access to active site, and inactivates the enzyme.
  • Cellular localizationMitochondrion matrix.

    • Target information above from: UniProt accession P08559 The UniProt Consortium
    The Universal Protein Resource (UniProt) in 2010
    Nucleic Acids Res. 38:D142-D148 (2010) .

    Information by UniProt
    • Alternative names
        mitochondrialMS966ODPA_HUMAN
        PDHA1PDHE1-A type IPyruvate dehydrogenase E1 component subunit alphasomatic form
      see all
  • Database links

      • Applications

      Our Abpromise guarantee covers the use of ab115344 in the following tested applications.

      The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.

      Application Notes
      ELISA ELISA

      Phospho S293 PDH E1 alpha protein (PDHA1) ELISA Kit images

      • ELISA - Phospho S293 PDH E1 alpha protein (PDHA1) ELISA Kit (ab115344)
        ELISA - Phospho S293 PDH E1 alpha protein (PDHA1) ELISA Kit (ab115344)
        Example control sample curve. The phosphorylation state of PDHA1 can vary by treatment but also by cell culture conditions such as media supplements, nutrients and also cell density.
      • ELISA - Phospho S293 PDH E1 alpha protein (PDHA1) ELISA Kit (ab115344)
        ELISA - Phospho S293 PDH E1 alpha protein (PDHA1) ELISA Kit (ab115344)
        HeLa cells were cultured for 4 hours in media supplemented with DCA (20mM) to specifically inhibit mitochondrial PDH kinases, or NaF (20mM), a general inhibitor of serine/threonine protein phosphatases. The DCA treatment reduced the level of phospho S293. Conversely NaF treatment, to inhibit cellular serine phosphatases, increased the phosphorylation level of S293.
      • ELISA - Phospho S293 PDH E1 alpha protein (PDHA1) ELISA Kit (ab115344)
        ELISA - Phospho S293 PDH E1 alpha protein (PDHA1) ELISA Kit (ab115344)
        The PDHA1 bound from undosed HeLa cells was subject to in-well kinase treatment (PDK1&3) or in-well phosphatase treatment (PDP1) according to the supplementary protocol shown below. Untreated cells showed a significant endogenous phosphorylation signal at S293 which is increased by kinase treatment. Conversely phosphatase treatment was able to significantly reduce the phospho S293 signal from the endogenous levels.

      Protocols

      References for Phospho S293 PDH E1 alpha protein (PDHA1) ELISA Kit (ab115344)

      ab115344 has not yet been referenced specifically in any publications.

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