Cyclin A is required at two points in the human cell cycle.
摘要:
Cyclins play a fundamental role in regulating cell cycle events in all eukaryotic cells. The human cyclin A gene was identified as the site of integration of hepatitis B virus in a hepatocarcinoma cell line; in addition, cyclin A is associated with the E2F transcription factor in a complex which is dissociated by the E1A oncogene product. Such findings suggest that cyclin A is a target for oncogenic signals. We have now found that DNA synthesis and entry into mitosis are inhibited in human cells microinjected with anti-cyclin A antibodies at distinct times. Cyclin A binds both cdk2 and cdc2, giving two distinct cyclin A kinase activities, one appearing in S phase, the other in G2. These results suggest that cyclin A defines novel control points of the human cell cycle.
展开
关键词:
Hela Cells Humans Phosphotransferases Protein Kinases Protein-Serine-Threonine Kinases Cyclin-Dependent Kinases CDC2-CDC28 Kinases CDC2 Protein Kinase Cyclins Carrier Proteins
DOI:
10.1002/j.1460-2075.1992.tb05135.x
被引量:
年份:
1992
























通过文献互助平台发起求助,成功后即可免费获取论文全文。
相似文献
参考文献
引证文献
辅助模式
引用
文献可以批量引用啦~
欢迎点我试用!