Cryo-ET study from in vitro to in vivo revealed a general folding mode of chromatin with two-start helical architecture

Y Li, H Zhang, X Li, W Wu, P Zhu - Cell Reports, 2023 - cell.com
The organization and dynamics of chromatin fiber play crucial roles in regulating DNA
accessibility for gene expression. Here we combine cryoelectron tomography (cryo-ET), sub …

The transition structure of chromatin fibers at the nanoscale probed by cryogenic electron tomography

Z Zhou, K Li, R Yan, G Yu, CJ Gilpin, W Jiang… - Nanoscale, 2019 - pubs.rsc.org
The naked DNA inside the nucleus interacts with proteins and RNAs forming a higher order
chromatin structure to spatially and temporally control transcription in eukaryotic cells. The …

Structure of native chromatin fibres revealed by Cryo-ET in situ

Z Hou, F Nightingale, Y Zhu… - Nature …, 2023 - nature.com
The structure of chromatin plays pivotal roles in regulating gene transcription, DNA
replication and repair, and chromosome segregation. This structure, however, remains …

Cryo-EM study of the chromatin fiber reveals a double helix twisted by tetranucleosomal units

F Song, P Chen, D Sun, M Wang, L Dong, D Liang… - Science, 2014 - science.org
The hierarchical packaging of eukaryotic chromatin plays a central role in transcriptional
regulation and other DNA-related biological processes. Here, we report the 11-angstrom …

Cryo-electron microscopy of the chromatin fiber

R Boopathi, S Dimitrov, A Hamiche, C Petosa… - Current Opinion in …, 2020 - Elsevier
Highlights•Cryo-electro microscopy reveals the native conformation of chromatin fiber both
in vitro and in situ.•Presence of linker histone and ionic conditions determines the level of …

Higher‐order structure of the 30‐nm chromatin fiber revealed by cryo‐EM

P Zhu, G Li - IUBMB life, 2016 - Wiley Online Library
Genomic DNA is hierarchically packaged into chromatin in eukaryotes. As a central‐level
chromatin structure between nucleosomal arrays and higher order organizations, 30 nm …

Evidence for short-range helical order in the 30-nm chromatin fibers of erythrocyte nuclei

MP Scheffer, M Eltsov… - Proceedings of the …, 2011 - National Acad Sciences
Chromatin folding in eukaryotes fits the genome into the limited volume of the cell nucleus.
Formation of higher-order chromatin structures attenuates DNA accessibility, thus …

Chromatin as dynamic 10-nm fibers

K Maeshima, R Imai, S Tamura, T Nozaki - Chromosoma, 2014 - Springer
Since Flemming described a nuclear substance in the nineteenth century and named it
“chromatin,” this substance has fascinated biologists. What is the structure of chromatin …

Condensed but liquid-like domain organization of active chromatin regions in living human cells

T Nozaki, S Shinkai, S Ide, K Higashi, S Tamura… - Science …, 2023 - science.org
In eukaryotes, higher-order chromatin organization is spatiotemporally regulated as
domains, for various cellular functions. However, their physical nature in living cells remains …

Chromatin structure meets cryo-EM: dynamic building blocks of the functional architecture

Y Takizawa, H Kurumizaka - Biochimica et Biophysica Acta (BBA)-Gene …, 2022 - Elsevier
Chromatin is a dynamic molecular complex composed of DNA and proteins that package the
DNA in the nucleus of eukaryotic cells. The basic structural unit of chromatin is the …