RANJITH PADINHATEERI
Articles written in Journal of Biosciences
Volume 45 All articles Published: 20 January 2020 Article ID 0014 Article
Role of nucleosome positioning in 3D chromatin organization and loop formation
HUNGYO KHARERIN PAIKE J BHAT RANJITH PADINHATEERI
We present a physics-based polymer model that can investigate 3D organization of chromatin accounting for DNA elasticity,DNA-bending due to nucleosomes, and 1D organization of nucleosomes along DNA. We find that the packing density ofchromatin oscillates between densities corresponding to highly folded and extended configurations as we change thenucleosome organization (length of linker DNA). We compute the looping probability of chromatin and show that thepresence of nucleosomes increases the looping probability of the chain compared to that of a bare DNA. We also show thatlooping probability has a large variability depending on the nature of nucleosome organization and density of linker histones.
Volume 45, 2020
All articles
Continuous Article Publishing mode
Click here for Editorial Note on CAP Mode
© 2021-2022 Indian Academy of Sciences, Bengaluru.