Der Austausch von radioaktivem Phosphat mit dem ?-, ?- und ?-Phosphor von ATP und mit Kreatinphosphat bei der Kontraktur des Froschrectus durch Acetylcholin, Nicotin und Succinylbischolin

Fleckenstein, A.; Janke, J.; Davies, R. E.; Hartz, W.; Richter, Hannah

doi:10.1007/bf00259942

Cited by 8 publications

(1 citation statement)

References 14 publications

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“…This difficulty can be overcome to some extent by investigation of the uptake of labelled phosphate entering the cell into intracellular compounds like ATP (e.g. Fleckenstein, Janke & Davies, 1956). This approach is, however, limited by two factors.…”

Section: Introductionmentioning

confidence: 99%

The influx of orthophosphate into squid giant axons

Caldwell¹,

Lowe²

1970

The Journal of Physiology

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1. The influx of 32P, applied externally as orthophosphate, into the axoplasm of squid giant axons has been studied. 2. An average orthophosphate influx of 20·9 f‐mole/cm2.sec is obtained if the 32P found in the axoplasm is assumed to be indicative of orthophosphate which has crossed the axolemma. 3. The influx does not show very much dependence on external orthophosphate concentration in the range 0·02–0·5 m M. 4. The influx is reduced by cyanide, 2,4‐dinitrophenol, ouabain and by the absence of external potassium. 5. The 32P appears to arrive in the axoplasm as orthophosphate. 6. It is concluded that there is an inward movement of orthophosphate into the axons which is mediated by an active transport process and that this may have some connexion with the active transport of sodium and potassium.

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Section: Introductionmentioning

confidence: 99%