δ-Aminolevulinic Acid Synthetase: Induction in Embryonic Chick Liver by Glucagon

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Science  06 Mar 1970:
Vol. 167, Issue 3923, pp. 1378-1379
DOI: 10.1126/science.167.3923.1378


Glucagon elicits a twofold increase in δ-aminolevulinic acid synthetase activity in the livers of 18-day-old chick embryos. This rise occurs when RNA synthesis is inhibited, but is prevented when protein synthesis is blocked. Cyclic adenosine monophosphate appears not to be involved.