Über das Vorkommen von Homarin, Taurocyamin, Cholin, Lysin und anderen Aminosäuren sowie Bernsteinsäure in dem MeereswurmArenicola marina

Abstract

The presence of taurocyamine and the absence of taurine and astuberine in the marine snail A. marina was established analytically and paper chromatographically thus confirming the findings of J. Roche and co-workers. In addition homarine and choline were present but glycocoll betaine and trigonelline were absent. The proportion of lysine (62.7% of the total basic N) was remarkably high while histidine was only found in very small amounts and arginine was not found at all. Some other monoamino acids were observed in addition to larger amounts of tyrosine and especially leucine. Taurocyamine can be regarded as an intermediate product between taurine and astuberine. Succinic acid was also isolated.