Accounting for the ATP-consuming processes in rabbit reticulocytes.

Accounting for the ATP-consuming processes in rabbit reticulocytes.
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考虑兔网织红细胞中 ATP 消耗过程。

DOI:
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发表时间:
1984
期刊:
European Journal of Biochemistry
影响因子:
--
通讯作者:
S. Rapoport
S. Rapoport
中科院分区:
--
文献类型:
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作者:
W. Siems;W. Dubiel;R. Dumdey;M. Müller;S. Rapoport

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本报告详细论述了家兔网织红细胞ATP产生和消耗的平衡。产生的ATP总量为135 mmol。1-1 . h-1。约70%的ATP消耗是由特定过程产生的。主要的贡献过程是珠蛋白合成(约28%)、Na+,K+-ATP酶(约23%)和蛋白质水解(约15%)。30%的ATP消耗量尚未计算在内。环己酰亚胺(20 μ M)导致蛋白质的合成和降解之间的解离,这反对这些过程之间的任何必然联系。超过90%的赖氨酸从线粒体释放的蛋白水解被重新利用的球蛋白的合成,证明高氮经济的网织红细胞。研究的每个ATP消耗过程似乎都以独立的方式控制ATP的产生,彼此之间没有竞争。
The report deals with a detailed balance of ATP production and consumption of the rabbit reticulocyte. The sum-total of ATP produced amounts to 135 mmol . 1-1 . h-1. About 70% of the ATP consumption has been accounted for by specific processes. The main contributing processes are the globin synthesis with about 28%, the Na+, K+-ATPase with 23% and the proteolysis with more than 15%. 30% of ATP consumption has not been accounted for. Cycloheximide (20 microM) leads to a dissociation between synthesis and degradation of proteins, which argues against any obligatory connection between these processes. More than 90% of the lysine liberated from mitochondria by proteolysis were reutilized for the globin synthesis demonstrating the high nitrogen economy of reticulocytes. Each of the ATP-consuming processes studied appears to control ATP production in an independent manner without competition with each other.
DOI: --
发表时间: 1981
期刊: The Journal of biological chemistry
影响因子: --
作者:
Griffith,OW
通讯作者: Griffith,OW