Effect of diadenosine tetraphosphate microinjection on heat shock protein synthesis in Xenopus laevis oocytes.


Bisnucleosides polyphosphates are thought to be chemical messengers signalling to the cell the onset of various stresses. Diadenosine tri- and tetraphosphates (respectively, Ap3A and Ap4A) accumulate in prokaryotic and eukaryotic cells under heat shock conditions, suggesting they could trigger the synthesis of heat shock proteins (hsps). In this study, Ap4A… (More)


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