Mitochondrial genome maintenance—the kinetoplast story

S Amodeo, I Bregy, T Ochsenreiter - FEMS microbiology …, 2023 - academic.oup.com
Mitochondrial DNA replication is an essential process in most eukaryotes. Similar to the
diversity in mitochondrial genome size and organization in the different eukaryotic …

Topological and physical links in soft matter systems

E Orlandini, C Micheletti - Journal of Physics: Condensed Matter, 2021 - iopscience.iop.org
Linking, or multicomponent topological entanglement, is ubiquitous in soft matter systems,
from mixtures of polymers and DNA filaments packed in vivo to interlocked line defects in …

Single-molecule structure and topology of kinetoplast DNA networks

P He, AJ Katan, L Tubiana, C Dekker, D Michieletto - Physical Review X, 2023 - APS
Kinetoplast DNA (kDNA) is a two-dimensional Olympic-ring-like network of mutually linked
DNA minicircles found in certain parasites called trypanosomes. Understanding the self …

The Rabl configuration limits topological entanglement of chromosomes in budding yeast

M Pouokam, B Cruz, S Burgess, MR Segal… - Scientific reports, 2019 - nature.com
The three dimensional organization of genomes remains mostly unknown due to their high
degree of condensation. Biophysical studies predict that condensation promotes the …

Single-molecule morphology of topologically digested olympic networks

S Ramakrishnan, Z Chen, YAG Fosado, L Tubiana… - PRX Life, 2024 - APS
The kinetoplast DNA (kDNA) is the archetype of a two-dimensional Olympic network,
composed of thousands of DNA minicircles and found in the mitochondrion of certain …

Is the kinetoplast DNA a percolating network of linked rings at its critical point?

D Michieletto, D Marenduzzo, E Orlandini - Physical biology, 2015 - iopscience.iop.org
In this work we present a computational study of the kinetoplast genome, modelled as a
large number of semiflexible unknotted loops, which are allowed to link with each other. As …

Kinetoplast DNA: a polymer physicist's topological Olympic dream

D Michieletto - Nucleic Acids Research, 2024 - academic.oup.com
All life forms are miraculous, but some are more inexplicable than others. Trypanosomes are
by far one of the most puzzling organisms on Earth: their mitochondrial genome, also called …

High-throughput analysis of the Trypanosoma cruzi minicirculome (mcDNA) unveils structural variation and functional diversity

A Gómez-Palacio, L Cruz-Saavedra… - Scientific Reports, 2024 - nature.com
Trypanosoma cruzi causes Chagas disease and has a unique extranuclear genome
enclosed in a structure called the kinetoplast, which contains circular genomes known as …

Percolation and dissolution of Borromean networks

DG Ferschweiler, R Blair, AR Klotz - Physical Review E, 2023 - APS
Inspired by experiments on topologically linked DNA networks, we consider the connectivity
of Borromean networks, in which no two rings share a pairwise-link, but groups of three rings …

Orientation of DNA minicircles balances density and topological complexity in kinetoplast DNA

Y Diao, V Rodriguez, M Klingbeil, J Arsuaga - Plos one, 2015 - journals.plos.org
Kinetoplast DNA (kDNA), a unique mitochondrial structure common to trypanosomatid
parasites, contains thousands of DNA minicircles that are densely packed and can be …