NCP activates chloroplast transcription by controlling phytochrome-dependent dual nuclear and plastidial switches.

dc.contributor.author

Yang, Emily J

dc.contributor.author

Yoo, Chan Yul

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Liu, Jiangxin

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Wang, He

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Cao, Jun

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Li, Fay-Wei

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Pryer, Kathleen M

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Sun, Tai-Ping

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Weigel, Detlef

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Zhou, Pei

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Chen, Meng

dc.date.accessioned

2020-11-25T23:53:09Z

dc.date.available

2020-11-25T23:53:09Z

dc.date.issued

2019-06-14

dc.date.updated

2020-11-25T23:53:06Z

dc.description.abstract

Phytochromes initiate chloroplast biogenesis by activating genes encoding the photosynthetic apparatus, including photosynthesis-associated plastid-encoded genes (PhAPGs). PhAPGs are transcribed by a bacterial-type RNA polymerase (PEP), but how phytochromes in the nucleus activate chloroplast gene expression remains enigmatic. We report here a forward genetic screen in Arabidopsis that identified NUCLEAR CONTROL OF PEP ACTIVITY (NCP) as a necessary component of phytochrome signaling for PhAPG activation. NCP is dual-targeted to plastids and the nucleus. While nuclear NCP mediates the degradation of two repressors of chloroplast biogenesis, PIF1 and PIF3, NCP in plastids promotes the assembly of the PEP complex for PhAPG transcription. NCP and its paralog RCB are non-catalytic thioredoxin-like proteins that diverged in seed plants to adopt nonredundant functions in phytochrome signaling. These results support a model in which phytochromes control PhAPG expression through light-dependent double nuclear and plastidial switches that are linked by evolutionarily conserved and dual-localized regulatory proteins.

dc.identifier

10.1038/s41467-019-10517-1

dc.identifier.issn

2041-1723

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2041-1723

dc.identifier.uri

https://hdl.handle.net/10161/21729

dc.language

eng

dc.publisher

Springer Science and Business Media LLC

dc.relation.ispartof

Nature communications

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10.1038/s41467-019-10517-1

dc.subject

Cell Nucleus

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Plastids

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Chloroplasts

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Plants, Genetically Modified

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Arabidopsis

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DNA-Directed RNA Polymerases

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Phytochrome

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Molecular Chaperones

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Arabidopsis Proteins

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Signal Transduction

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Photosynthesis

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Transcription, Genetic

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Gene Expression Regulation, Plant

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Light

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Basic Helix-Loop-Helix Transcription Factors

dc.title

NCP activates chloroplast transcription by controlling phytochrome-dependent dual nuclear and plastidial switches.

dc.type

Journal article

duke.contributor.orcid

Pryer, Kathleen M|0000-0002-9776-6736

duke.contributor.orcid

Sun, Tai-Ping|0000-0001-5223-2936

duke.contributor.orcid

Zhou, Pei|0000-0002-7823-3416

pubs.begin-page

2630

pubs.issue

1

pubs.organisational-group

Trinity College of Arts & Sciences

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Biology

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Duke Science & Society

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Duke

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Initiatives

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Institutes and Provost's Academic Units

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School of Medicine

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Duke Cancer Institute

pubs.organisational-group

Biochemistry

pubs.organisational-group

Institutes and Centers

pubs.organisational-group

Basic Science Departments

pubs.publication-status

Published

pubs.volume

10

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