A mitochondria-specific isoform of FASTK is present in mitochondrial RNA granules and regulates gene expression and function.

@article{Jourdain2015AMI,
  title={A mitochondria-specific isoform of FASTK is present in mitochondrial RNA granules and regulates gene expression and function.},
  author={Alexis A. Jourdain and Mirko Koppen and Chris D. M. Rodley and Kinsey Maundrell and Na{\"i}g Gueguen and Pascal Reynier and Adela M. Guaras and Jos{\'e} Antonio Enr{\'i}quez and Paul Anderson and Mar{\'i}a Simarro and Jean-Claude Martinou},
  journal={Cell reports},
  year={2015},
  volume={10 7},
  pages={
          1110-21
        }
}

Role of FAST Kinase Domains 3 (FASTKD3) in Post-transcriptional Regulation of Mitochondrial Gene Expression*

TLDR
It is described that FASTKD3 is required for efficient COX1 mRNA translation without altering mRNA levels, which results in a decrease in the steady-state levels ofCOX1 protein.

RNA Granules in the Mitochondria and Their Organization under Mitochondrial Stresses

TLDR
Findings underline the important link between mitochondrial maintenance and the efficient expression of its genome and play an essential role in mitochondrial gene expression.

FASTKD2 is an RNA-binding protein required for mitochondrial RNA processing and translation.

TLDR
Key aspects of the molecular network of a previously uncharacterized, disease-relevant RNA-binding protein, FASTKD2, are identified by a combination of genomic, molecular, and metabolic analyses.

SUV3 helicase is required for correct processing of mitochondrial transcripts

TLDR
It is proposed that SUV3 is predominantly required for the processing of mitochondrial polycistronic transcripts in metazoan and that this function is independent of PNPase.

Transcription, Processing, and Decay of Mitochondrial RNA in Health and Disease

TLDR
The essential steps of mitochondrial RNA synthesis, maturation, and degradation, the factors controlling these processes, and how the alteration of these processes is associated with human pathologies are described.

The mammalian mitochondrial epitranscriptome

Regulation of mitochondrial RNA expression by FASTK proteins

TLDR
Structural modeling and mutagenesis studies suggested a similarity of a domain of the FASTK proteins to an endonuclease, and the N terminal region appears to resemble PPR proteins and determines if the protein is incorporated into mitochondrial RNA granules or not.

The FASTK family proteins fine-tune mitochondrial RNA processing

TLDR
It is revealed that the FASTK protein family members are crucial regulators of non-canonical junction and non-coding mitochondrial RNA processing.

Is mitochondrial gene expression coordinated or stochastic?

TLDR
Recently identified examples of the co-ordinated and stochastic processes that govern the mitochondrial transcriptome are reviewed to reveal the complexity of mitochondrial gene expression and the need for its in-depth exploration to understand how these organelles can respond to the energy demands of the cell.

Mitochondrial Gene Expression and Beyond—Novel Aspects of Cellular Physiology

TLDR
The complex turnover of mitochondrial transcripts is summarized and an increasing body of evidence indicating new functions of mitochondria transcripts is presented, highlighting the importance of emerging aspects of mitochondrial gene regulation in human health and disease.
...

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