Wyborny L E, Kritcher E M, Luchi R J
Biochem J. 1978 Jan 15;170(1):189-92. doi: 10.1042/bj1700189.
An equation was derived from which the turnover time of individual muscle proteins could be calculated from measurements made at a single time interval in individual animals after initiation of constant intravenous infusion of labelled amino acid. The calculation requires only the specific radioactivities of the amino acid in plasma, in the intracellular fluid and in the protein under study. Pool sizes were not required. When the equation was applied to adult guinea-pig cardiac myosin, the average turnover time was 16 +/- 1 days.
推导出了一个方程式,根据该方程式,在开始对个体动物持续静脉输注标记氨基酸后的单个时间间隔内所做的测量结果,可计算出个体肌肉蛋白的周转时间。该计算仅需要血浆、细胞内液以及所研究蛋白质中氨基酸的比放射性。不需要池大小的数据。当将该方程式应用于成年豚鼠心肌肌球蛋白时,平均周转时间为16±1天。