Hydrophobic interaction describes the influences that cause nonpolar substances to cluster together to minimize their contacts with water.

#Id: 418

#Unit 2. Cellular Organization

H2AZ variant has 60% sequence identity with canonical H2A and involved in gene activation, heterochromatin–euchromatin boundary formation, cell-cycle progression.

#Id: 419

#Unit 2. Cellular Organization

Mammalian macroH2A is enriched in the inactive X chromosome in females, which is assembled into a silent, heterochromatic state

#Id: 420

#Unit 2. Cellular Organization

Mammalian H2ABbd variant is excluded from the inactive X and forms a less stable nucleosome than canonical H2A

#Id: 421

#Unit 2. Cellular Organization

#Id: 422

#Unit 2. Cellular Organization

#Id: 423

#Unit 2. Cellular Organization

The second level of organization is the coiling of the 10-nm fiber of nucleosomes into a helical array to constitute the fiber of diameter 30 nm.