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禽磷酸烯醇式丙酮酸羧激酶:年龄、饥饿和光照周期的影响。

Avian phosphoenolpyruvate carboxykinase: effect of age, starvation and photoperiod.

作者信息

Tinker D A, Kung M, Brosnan J T, Herzberg G R

出版信息

Int J Biochem. 1983;15(10):1225-30. doi: 10.1016/0020-711x(83)90211-2.

DOI:10.1016/0020-711x(83)90211-2
PMID:6628825
Abstract

Computer analysis of the subcellular distribution of phosphoenolpyruvate carboxykinase in adult female (Gallus domesticus) chicken liver indicates that the activity is distributed between the mitochondria and nucleus in the ratio 70: 30%. There was no activity found in the cytosol. Newly hatched chicks and 8-week-old juveniles were found to have a significant soluble hepatic PEPCK activity. The particulate activity of PEPCK in the livers of juveniles raised in continuous light (24L:0D) decreased over the course of a 7-day fast while no such decrease was seen in juveniles raised in a 12-hr daylength photoperiod (12L:12D).

摘要

对成年雌性(家鸡)鸡肝脏中磷酸烯醇式丙酮酸羧激酶的亚细胞分布进行计算机分析表明,该酶活性在线粒体和细胞核之间的分布比例为70:30%。在细胞质中未发现活性。研究发现,刚孵化的雏鸡和8周龄的幼鸡肝脏中有显著的可溶性磷酸烯醇式丙酮酸羧激酶活性。在持续光照(24小时光照:0小时黑暗)条件下饲养的幼鸡肝脏中,磷酸烯醇式丙酮酸羧激酶的颗粒活性在7天禁食过程中下降,而在12小时光照周期(12小时光照:12小时黑暗)条件下饲养的幼鸡中未观察到这种下降。

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Avian phosphoenolpyruvate carboxykinase: effect of age, starvation and photoperiod.禽磷酸烯醇式丙酮酸羧激酶:年龄、饥饿和光照周期的影响。
Int J Biochem. 1983;15(10):1225-30. doi: 10.1016/0020-711x(83)90211-2.
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Effects of starvation and refeeding a high carbohydrate diet on the intra-acinar distribution pattern of phosphoenolpyruvate carboxykinase activity in the liver of male and female rats.饥饿及再喂食高碳水化合物饮食对雄性和雌性大鼠肝脏中磷酸烯醇式丙酮酸羧激酶活性在腺泡内分布模式的影响。
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Liver cell heterogeneity. The distribution of pyruvate kinase and phosphoenolpyruvate carboxykinase (GTP) in the liver lobule of fed and starved rats.肝细胞异质性。喂食和饥饿大鼠肝小叶中丙酮酸激酶和磷酸烯醇式丙酮酸羧激酶(GTP)的分布。
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Phosphoenolpyruvate carboxykinase is a nuclear enzyme in rats and chickens.磷酸烯醇式丙酮酸羧激酶在大鼠和鸡体内是一种核酶。
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