Send to

Choose Destination
See comment in PubMed Commons below
Trends Cell Biol. 1999 Mar;9(3):113-8.

The role of COP1 in repression of Arabidopsis photomorphogenic development.

Author information

  • 1Dept of Molecular, Cellular and Developmental Biology, Yale University, New Haven, CT 06520-8104, USA.


Photomorphogenic development in Arabidopsis is regulated by the key repressor COP1, which interacts with specific transcription factors in the nucleus to modulate their activities. In the dark, COP1 accumulates in the nucleus and represses photomorphogenic development. Light diminishes the nuclear accumulation of COP1 and abrogates its repressor activity. A number of cellular components are involved in light-dependent nucleocytoplasmic partitioning of COP1, including the multisubunit COP9 complexes and at least three well-characterized photoreceptors. This review discusses current understanding of the mechanisms of COP1 action.

[PubMed - indexed for MEDLINE]
PubMed Commons home

PubMed Commons

How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for Elsevier Science
    Loading ...
    Write to the Help Desk