Every year, much of the energy the U.S. consumes is wasted through transmission, heat loss and inefficient technology -- costing American families and businesses money, and leading to increased carbon pollution.
histone /hisÂ·tone/ (hisÂ´tÅn) a simple protein, soluble in water and insoluble in dilute ammonia, found combined as salts with acidic substances, e.g., the protein combined with nucleic acid or the globin of hemoglobin. histone (hÄ­sâ²tÅnâ²)
Another example is histone modification. Histones are proteins that DNA wraps around. (Without histones, DNA would be too long to fit inside cells.) If histones squeeze DNA tightly, the DNA cannot be read by the cell. Modifications that relax the histones can make the DNA accessible to proteins that read genes.