Postmortem alterations in the pH range of myofibrillar ATPase activation/inactivation

  title={Postmortem alterations in the pH range of myofibrillar ATPase activation/inactivation},
  author={Seth S. Jump and Mark D. Schuenke and Robert S. Staron},
  journal={Histochemistry and Cell Biology},
A histochemical assay for myofibrillar adenosine triphosphatase (mATPase) activity is routinely utilized in the delineation of fiber types in healthy human skeletal muscle. Each fiber type has a specific pH range of mATPase stability (activation). Outside of this pH range, mATPase activity is labile (inactivated), no reaction product is formed, and the fibers remain unstained. The aim of the present study was to carefully investigate the pH stability/lability of mATPase in postmortem muscles… CONTINUE READING

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