Histones are a family of basic proteins that associate with DNA in the nucleus and help condense it into chromatin. Nuclear DNA does not appear in free linear strands; it is highly condensed and ...

Warnecke wasn’t the first to look for histone in prokaryotes, but such searches, which tend to use eukaryotic histones as references, have only yielded a few potential candidates. That may be because ...

Histones proteins were selected early in evolution to transform DNA into chromatin filaments formed by many nucleosomes. The ...

Histones not only keep DNA organized, but also help regulate gene expression. How? Scientists are using ChIP and PCR to find out. To examine changes in histone modification during blood cell ...

The mechanism of a peculiar type of heterochromatin, used by embryonic stem cells to silence 'parasitic' DNA-elements within the context of their highly dynamic pluripotent chromatin. Disclaimer ...

Scientists discovered a way to block hepatitis B infection using an anticancer drug, offering hope for new treatments.

In the absence of DDM1 and RNAi, this TE doesn’t produce small RNAs, so the centromere is not methylated. These mutants also had few epigenetic tags on their histones, which contribute to the ...

Le niveau suivant de compaction de l'ADN fait intervenir d'autres protéines dites « non histones. » Le degré de condensation de l'ADN autour des nucléosomes d'histones et des protéines non histones ...