Specific phosphorylase from euglena gracilis splits diadenosine 5',5'''-P1,P4-tetraphosphate (Ap4A and diadenosine 5',5'''-P1,P3-triphosphate (Ap3A

AppppA, heat-shock stress, and cell oxidation.

P C Lee, Barry R. Bochner, B N Ames · Proceedings of the National Academy of Sciences · 1983 · 376 citations · Full text

Life Sciences, Biochemistry, Microbiology +13

AppppA and related adenylylated nucleotides are synthesized as a consequence of oxidation stress

Barry R. Bochner, Philip C. Lee, Scott W. Wilson et al. · Cell · 1984 · 303 citations

Life Sciences, Biochemistry, Molecular Biology +7

Enzymatic synthesis of diadenosine tetraphosphate and diadenosine triphosphate with a purified lysyl-sRNA synthetase

Paul G. Zamecnik, Mary L. Stephenson, Claude M. Janeway et al. · Biochemical and Biophysical Research Communications · 1966 · 275 citations

Life Sciences, Biochemistry, Molecular Biology +5

Presence of diadenosine 5',5''' -P1, P4-tetraphosphate (Ap4A) in mamalian cells in levels varying widely with proliferative activity of the tissue: a possible positive "pleiotypic activator".

Eliezer Rapaport, Paul C. Zamecnik · Proceedings of the National Academy of Sciences · 1976 · 268 citations · Full text

Life Sciences, Biochemistry, Molecular Biology +13

Abundant amounts of diadenosine 5′,5‴-<i>P</i>1,<i>P</i>4-tetraphosphate are present and releasable, but metabolically inactive, in human platelets

Hans Flodgaard, Hans Klenow · Biochemical Journal · 1982 · 206 citations · Full text

Life Sciences, Biochemistry, Molecular Biology +11