Manche Hormone und viele weitere Botenstoffe sind ebenfalls Proteinmoleküle.
Many hormones and other messenger substances are also protein molecules.
Das meiste Cholesterin wird in der Leber und im Darm hergestellt: Hier können kleine Botenstoffe von Bakterien die Arbeit mitregulieren.
Most cholesterol is produced in the liver and the gut, where tiny messenger substances manufactured by the bacteria can partly control those processes.
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