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Exp Cell Res. 1986 Apr;163(2):287-93.

Synthesis of the nuclear protein cyclin (PCNA) and its relationship with DNA replication.

Abstract

Synthesis of the nuclear protein cyclin (MW 36 000) and DNA in quiescent mouse fibroblasts is coordinately induced by serum and purified growth factors. Inhibition of DNA synthesis by hydroxyurea or aphidicolin in serum-stimulated quiescent cells does not affect the induction of cyclin. The levels of cyclin synthesis decrease rapidly at the end of the S phase. Immunofluorescence studies reveal that there are dramatic changes in the nuclear distribution of cyclin during S phase and that these depend on DNA synthesis or events during S phase. These observations strengthen the notion that cyclin is an important component of the events leading to DNA replication.

PMID:
2869964
DOI:
10.1016/0014-4827(86)90059-5
[Indexed for MEDLINE]

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