Abstract
1. A study has been made of the ability of cerebral microsome-cell sap systems, taken from rats at various ages, to incorporate [14C]valine. 2. The systems appear to follow Michaelis–Menten kinetics when cell sap is considered as substrate, microsomes as enzyme and total counts/mg. of microsomal protein as a measure of reaction velocity. 3. Reproducible `affinity constant' values are obtained, and the system from 4-day-old rats has a higher Vmax. and affinity constant than the system from adult rats. 4. It is suggested the the amino acid-incorporating ability of different systems may be compared by this means.
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Selected References
These references are in PubMed. This may not be the complete list of references from this article.
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