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Article

Cip4, a new COP1 target, is a nucleus-localized positive regulator of Arabidopsis photomorphogenesis.

The Plant cell - 1 Feb 2001

Yamamoto Y Y, Deng X, Matsui M

Abstract excerpt

Arabidopsis COP1 acts within the nucleus to repress photomorphogenesis, and its nuclear abundance is negatively regulated by light. Here, we report the identification of a COP1-interactive partner, CIP4. CIP4 is a nuclear protein and a potent transcription coactivator. Conditional suppression of CIP4 expression resulted in an elongated hypocotyl and reduced chlorophyll content in the light, indicating that CIP4...

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Identifiers

PMID: 11226193
DOI: 10.1105/tpc.13.2.399
PMCID: PMC102250

Genes

COP1

Provenance

PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-07.1.

Source receipt: pubmed, retrieved 7 Sept 2026.

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