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Article

Mechanism of early light signaling by the carboxy-terminal output module of Arabidopsis phytochrome B.

Nature communications - 4 Dec 2017

Qiu Yongjian, Pasoreck Elise K, Reddy Amit K, Nagatani Akira, Ma Wenxiu, Chory Joanne, Chen Meng

Abstract excerpt

Plant phytochromes are thought to transduce light signals by mediating the degradation of phytochrome-interacting transcription factors (PIFs) through the N-terminal photosensory module, while the C-terminal module, including a histidine kinase-related domain (HKRD), does not participate in signaling. Here we show that the C-terminal module of Arabidopsis phytochrome B (PHYB) is sufficient to mediate the...

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Identifiers

PMID: 29199270
DOI: 10.1038/s41467-017-02062-6
PMCID: PMC5712524

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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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Mechanism of early light signaling by the carboxy-terminal output module of Arabidopsis phytochrome B.PMID 29199270Read ↗

Arabidopsis PHYTOCHROME INTERACTING FACTOR proteins promote phytochrome B polyubiquitination by COP1 E3 ligase in the nucleus.Semantic proximity Read ↗

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Arabidopsis phytochrome B promotes SPA1 nuclear accumulation to repress photomorphogenesis under far-red light.Semantic proximity Read ↗

The histidine kinase-related domain participates in phytochrome B function but is dispensable.Semantic proximity Read ↗

Arabidopsis phytochrome a is modularly structured to integrate the multiple features that are required for a highly sensitized phytochrome.Semantic proximity Read ↗

Phytochrome B Requires PIF Degradation and Sequestration to Induce Light Responses across a Wide Range of Light Conditions.Semantic proximity Read ↗

Constitutive photomorphogenesis 1 and multiple photoreceptors control degradation of phytochrome interacting factor 3, a transcription factor required for light signaling in Arabidopsis.Semantic proximity Read ↗

Intramolecular uncoupling of chromophore photoconversion from structural signaling determinants drive mutant phytochrome B photoreceptor to far-red light perception.Semantic proximity Read ↗

Evolutionary studies illuminate the structural-functional model of plant phytochromes.Semantic proximity Read ↗

The histidine kinase-related domain of Arabidopsis phytochrome a controls the spectral sensitivity and the subcellular distribution of the photoreceptor.Semantic proximity Read ↗

A cytosol-tethered YHB variant of phytochrome B retains photomorphogenic signaling activity.Semantic proximity Read ↗

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