Higher order organization of the mtDNA: beyond mitochondrial transcription factor A

D Mishmar, R Levin, MM Naeem… - Frontiers in Genetics, 2019 - frontiersin.org
The higher order organization of eukaryotic and prokaryotic genomes is pivotal in the
regulation of gene expression. Specifically, chromatin accessibility in eukaryotes and …

mtDNA chromatin-like organization is gradually established during mammalian embryogenesis

S Marom, A Blumberg, A Kundaje, D Mishmar - Iscience, 2019 - cell.com
Unlike the nuclear genome, the mammalian mitochondrial genome (mtDNA) is thought to be
coated solely by mitochondrial transcription factor A (TFAM), whose binding sequence …

A common pattern of DNase I footprinting throughout the human mtDNA unveils clues for a chromatin-like organization

A Blumberg, CG Danko, A Kundaje… - Genome …, 2018 - genome.cshlp.org
Human mitochondrial DNA (mtDNA) is believed to lack chromatin and histones. Instead, it is
coated solely by the transcription factor TFAM. We asked whether mtDNA packaging is more …

Single-nucleoid architecture reveals heterogeneous packaging of mitochondrial DNA

RS Isaac, TW Tullius, KG Hansen… - Nature Structural & …, 2024 - nature.com
Cellular metabolism relies on the regulation and maintenance of mitochondrial DNA
(mtDNA). Hundreds to thousands of copies of mtDNA exist in each cell, yet because …

TFAM forces mtDNA to make a U-turn

BM Hallberg, NG Larsson - Nature structural & molecular biology, 2011 - nature.com
The mammalian mitochondrial transcription factor A (TFAM) is encoded in the nucleus and
imported into mitochondria, where it functions as an activator of mtDNA transcription and …

Genome-wide analysis reveals coating of the mitochondrial genome by TFAM

YE Wang, GK Marinov, BJ Wold, DC Chan - PloS one, 2013 - journals.plos.org
Mitochondria contain a 16.6 kb circular genome encoding 13 proteins as well as
mitochondrial tRNAs and rRNAs. Copies of the genome are organized into nucleoids …

Phase separation drives the self-assembly of mitochondrial nucleoids for transcriptional modulation

Q Long, Y Zhou, H Wu, S Du, M Hu, J Qi, W Li… - Nature Structural & …, 2021 - nature.com
Mitochondria, the only semiautonomous organelles in mammalian cells, possess a circular,
double-stranded genome termed mitochondrial DNA (mtDNA). While nuclear genomic DNA …

Initiation of mtDNA transcription is followed by pausing, and diverges across human cell types and during evolution

A Blumberg, EJ Rice, A Kundaje, CG Danko… - Genome …, 2017 - genome.cshlp.org
Mitochondrial DNA (mtDNA) genes are long known to be cotranscribed in polycistrones, yet
it remains impossible to study nascent mtDNA transcripts quantitatively in vivo using existing …

Transcription factors bind negatively selected sites within human mtDNA genes

A Blumberg, B Sri Sailaja, A Kundaje… - Genome biology and …, 2014 - academic.oup.com
Transcription of mitochondrial DNA (mtDNA)-encoded genes is thought to be regulated by a
handful of dedicated transcription factors (TFs), suggesting that mtDNA genes are separately …

Functional complementation of mitochondrial DNAs: mobilizing mitochondrial genetics against dysfunction

EA Schon, RW Gilkerson - Biochimica et Biophysica Acta (BBA)-General …, 2010 - Elsevier
Human mitochondrial DNA (mtDNA) is a 16.6-kb circular genome that is typically found in∼
1000 copies per cell. Frequently, one or more forms of mtDNA (ie wildtype (WT) and one or …