资讯

How is all of that DNA packaged so tightly into chromosomes and squeezed into a tiny nucleus? Histones are a family ... unit in the chromatin fiber. The packaging of DNA into nucleosomes shortens ...
The chromosomes of sperm cells are tightly packaged ... compacting the DNA requires the replacement of the histones with a class of arginine- and cysteine-rich proteins called protamines.
An article by UAB professor Joan-Ramon Daban analyzes in depth the physical problems associated with DNA packaging that have ...
Chances are you've seen an illustration of DNA's double-helix structure and even pictures of the chromosomes that make ... The DNA is wrapped around histones -- protein structures that are ...
Instead, the simulations revealed that Bd0055 might bind to the outer edges of DNA strands. Warnecke has never seen other histones behave this way. “There’s really nothing like the edge-on binding,” ...
Additionally, researchers discovered that this packaging ... implications for genetics and fertility treatments." Glossary Protamines (PRMs) are small proteins that replace histones in sperm ...