CIRCADIAN OSCILLATION OF 64-KDA POLYPEPTIDE IN THE RAT SUPRACHIASMATIC NUCLEUS

被引：0

作者：

NISHI, R ^{[1
]}

MURAKAMI, N ^{[1
]}

MARUMOTO, N ^{[1
]}

NASU, T ^{[1
]}

KURODA, H ^{[1
]}

ETOH, T ^{[1
]}

机构：

[1] MIYAZAKI UNIV, FAC AGR, DEPT VET ANAT, MIYAZAKI 89921, JAPAN

来源：

JOURNAL OF VETERINARY MEDICAL SCIENCE | 1994年 / 56卷 / 01期

关键词：

D O I：

10.1292/jvms.56.161

中图分类号：

S85 [动物医学（兽医学）];

学科分类号：

0906 ;

摘要：

In cell suspensions of suprachiasmatic nucleus harvested every 3 hr from rats kept under 12 hr: 12 hr light-dark cycle and constant darkness, we have detected a Mr 64-kDa protein whose synthesis exhibits two distinct daily peaks in SDS-PAGE. Analysis of densitometer tracings revealed that the synthesis of other proteins was independent of the time of day or not reproducible. Maximum synthesis of the 64-kDa polypeptide occurred at around CT6 and CT21, which are almost coincident with the phase advance regions of circadian activity rhythm induced by anisomycin and light pulses [15], respectively. These results suggest that the 64-kDa protein in SDS-PAGE may be a part of the circadian clock mechanism.

引用

页码：161 / 163

页数：3

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