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Moss PPR-SMR protein PpPPR_64 influences the expression of a psaA-psaB-rps14 gene cluster and processing of the 23S-4.5S rRNA precursor in chloroplasts.

Plant molecular biology - 1 Nov 2021

Takahashi Ayumu, Sugita Chieko, Ichinose Mizuho, Sugita Mamoru

Abstract excerpt

KEY MESSAGE: Moss PPR-SMR protein PpPPR_64 is a pTAC2 homolog but is functionally distinct from pTAC2. PpPPR_64 is required for psaA gene expression and its function may have evolved in mosses. The pentatricopeptide repeat (PPR) proteins are key regulatory factors responsible for the control of plant organellar gene expression. A small subset of PPR proteins possess a C-terminal small MutS-related (SMR) domain...

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PMID: 33128724
DOI: 10.1007/s11103-020-01090-z

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 6 Sept 2026. Manifest publication-graph-cohort-2026-09-06.1.

Source receipt: pubmed, retrieved 6 Sept 2026.

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