Elementary 3D organization of active and silenced E. coli genome.

ABSTRACT: Unravelling how genomes are spatially organized and how their three-dimensional (3D) architecture drives cellular functions remains a major challenge in biology^1,2. In bacteria, genomic DNA is compacted into a highly ordered, condensed state called nucleoid^3-5. Despite progress in characterizing bacterial 3D genome architecture over recent decades^6-8, the fine structure and functional organization of the nucleoid remain elusive due to low-resolution contact maps from methods such as Hi-C^9-11. Here we developed an enhanced Micro-C chromosome conformation capture, achieving 10-base pair (bp) resolution. This ultra-high-resolution analysis reveals elemental spatial structures in the Escherichia coli nucleoid, including chromosomal hairpins (CHINs) a

SUBMITTER: Gavrilov AA 

PROVIDER: S-EPMC12460168 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature