Mitochondrial transcription factor A regulates mitochondrial transcription initiation, DNA packaging, and genome copy number

CT Campbell, JE Kolesar, BA Kaufman - Biochimica et Biophysica Acta …, 2012 - Elsevier
Mitochondrial transcription factor A (mtTFA, mtTF1, TFAM) is an essential protein that binds
mitochondrial DNA (mtDNA) with and without sequence specificity to regulate both …

Regulation of mitochondrial biogenesis through TFAM–mitochondrial DNA interactions: useful insights from aging and calorie restriction studies

A Picca, AMS Lezza - Mitochondrion, 2015 - Elsevier
Mitochondrial biogenesis is regulated to adapt mitochondrial population to cell energy
demands. Mitochondrial transcription factor A (TFAM) performs several functions for mtDNA …

Contribution of tau pathology to mitochondrial impairment in neurodegeneration

MJ Pérez, C Jara, RA Quintanilla - Frontiers in neuroscience, 2018 - frontiersin.org
Tau is an essential protein that physiologically promotes the assembly and stabilization of
microtubules, and participates in neuronal development, axonal transport, and neuronal …

The mitochondrial nucleoid: integrating mitochondrial DNA into cellular homeostasis

R Gilkerson, L Bravo, I Garcia… - Cold Spring …, 2013 - cshperspectives.cshlp.org
The packaging of mitochondrial DNA (mtDNA) into DNA-protein assemblies called
nucleoids provides an efficient segregating unit of mtDNA, coordinating mtDNA's …

[HTML][HTML] Restoring the infected powerhouse: Mitochondrial quality control in sepsis

FM Lira-Chavez, LP Gartzke, FE van Beuningen… - Redox Biology, 2023 - Elsevier
Sepsis is a dysregulated host response to an infection, characterized by organ failure. The
pathophysiology is complex and incompletely understood, but mitochondria appear to play a …

Human mitochondrial transcription factors TFAM and TFB2M work synergistically in promoter melting during transcription initiation

A Ramachandran, U Basu, S Sultana… - Nucleic acids …, 2017 - academic.oup.com
Human mitochondrial DNA is transcribed by POLRMT with the help of two initiation factors,
TFAM and TFB2M. The current model postulates that the role of TFAM is to recruit POLRMT …

Dysregulation of PGC-1α-dependent transcriptional programs in neurological and developmental disorders: therapeutic challenges and opportunities

LJ McMeekin, SN Fox, SM Boas, RM Cowell - Cells, 2021 - mdpi.com
Substantial evidence indicates that mitochondrial impairment contributes to neuronal
dysfunction and vulnerability in disease states, leading investigators to propose that the …

[HTML][HTML] Mitochondrial transcription in mammalian cells

IN Shokolenko, MF Alexeyev - Frontiers in bioscience (Landmark …, 2017 - ncbi.nlm.nih.gov
As a consequence of recent discoveries of intimate involvement of mitochondria with key
cellular processes, there has been a resurgence of interest in all aspects of mitochondrial …

Accessorizing the human mitochondrial transcription machinery

ML Bestwick, GS Shadel - Trends in biochemical sciences, 2013 - cell.com
The human genome comprises large chromosomes in the nucleus and mitochondrial DNA
(mtDNA) housed in the dynamic mitochondrial network. Human cells contain up to …

Tfam Knockdown Results in Reduction of mtDNA Copy Number, OXPHOS Deficiency and Abnormalities in Zebrafish Embryos

ABC Otten, R Kamps, P Lindsey, M Gerards… - Frontiers in cell and …, 2020 - frontiersin.org
High mitochondrial DNA (mtDNA) copy numbers are essential for oogenesis and
embryogenesis and correlate with fertility of oocytes and viability of embryos. To understand …