Histone methylation is a process by which methyl groups are transferred to amino acids of histone proteins that make up nucleosomes, which the DNA double helix wraps around to form chromosomes.he fundamental unit of chromatin, called a nucleosome, contains DNA wound around a protein octamer. This octamer consists of two copies each of four histone proteins: H2A, H2B, H3, and H4. Each one of these proteins has a tail extension, and these tails are the targets of nucleosome modification by methylation.
The definition of a prude is a very proper and modest person. An example of a prude is a person who wears a lot of clothing in the summer to cover their bodies because they don't want to show their bare skin.
Describe an action as prudent if it is the wise thing to do under the existing circumstances. If you're getting in trouble, it is probably prudent to keep your mouth closed and just listen. If you show good and careful judgment when handling practical matters, you can be described as prudent. Similarly, a wise and well-thought-through decision or action can be called prudent. The word comes from a contracted form of the Latin prÅvidÄns from the verb to foresee.. The English word provident wise in planning for the future is the non-contracted descendent of the same Latin root. Definitions of prudent.