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在终末分化期间,通过肌球蛋白重链cDNA探针在肌肉细胞培养物中检测到的一种瞬时存在的聚腺苷酸加尾(poly(A)+)RNA物种。

A transient species of poly(A)+ RNA detected by a myosin heavy chain cDNA probe in muscle cell culture during terminal differentiation.

作者信息

Liang R

出版信息

Biochem Biophys Res Commun. 1984 May 16;120(3):741-6. doi: 10.1016/s0006-291x(84)80169-2.

Abstract

Primary cell cultures were prepared from breast muscles of 11 day 4 hour-embryonic chicks. Cytoplasmic RNAs were isolated from the cultured cells at various time intervals from day 3 to day 8. A [P32] DNA probe complementary to messenger RNA of myosin heavy chain was used to hybridize with the RNAs after gel electrophoresis. A transient species of polyadenylated RNA with a decreased mobility in electrophoresis was detected during a period of time when contractions of syncytial fibers were first observed.

摘要

原代细胞培养物取自11日龄4小时胚胎期雏鸡的胸肌。在培养的细胞中,于第3天至第8天的不同时间间隔分离细胞质RNA。在凝胶电泳后,使用与肌球蛋白重链信使RNA互补的[P32]DNA探针与RNA杂交。在首次观察到多核纤维收缩的一段时间内,检测到一种电泳迁移率降低的瞬时多聚腺苷酸化RNA。

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