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Hayashi, M.

Inhibition of axoneme and dynein ATPase from sea urchin sperm by free ATP.

Sea urchin sperm flagellar ATPase (EC 3.6.1.3) has magnesium-ATP as an effective substrate and is inhibited by free ATP. The inhibition is prevented by high concentration of KCl or NaCl. 0.4 M KCl extracts 48% of ATPase activity from axoneme. The 0.4 M KCl extract and 0.4 M KCl-treated axoneme are also inhibited by free ATP and this inhibition is reversed by KCl. Dynein purified twice by sucrose density gradient centrifugation is also inhibited by free ATP; this inhibition is also reversed by KCl.[1]

References

Inhibition of axoneme and dynein ATPase from sea urchin sperm by free ATP. Hayashi, M. Biochim. Biophys. Acta (1976) [Pubmed]

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