Abstract
THE biochemical differentiation1 between the vertebrates and the invertebrates rested upon the finding that phosphocreatine and phosphoarginine were characteristic of these two classes respectively. Recently, the discovery of phosphagens other than phosphoarginine in invertebrates has suggested some modification of this generalization; but there are no reports in the literature suggesting the presence of a phosphagen other than phosphocreatine in the vertebrates.
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MORRISON, J., GRIFFITHS, D. & ENNOR, A. Biochemical Evolution: Position of the Tunicates. Nature 178, 359 (1956). https://doi.org/10.1038/178359a0
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DOI: https://doi.org/10.1038/178359a0
