Protein phosphorylation is a reversible post-translational modification of proteins. In eukaryotes, protein phosphorylation functions in cell signaling, gene expression, and differentiation. It is also involved in DNA replication during the cell cycle, and the mechanisms that cope with stress-induced replication blocks.
Cake Doughnut. A single glazed chocolate cake doughnut that is around 3 3/4 inches in diameter can have close to 250 calories. Depending on the recipe, some varieties -- like chocolate-frosted chocolate cake doughnuts -- can have as many as 370 calories.
Activity can burn off the calories in a slice of cookie cake. According to the nutrition information provided by Mrs. Fields, one slice of chocolate chip cookie cake contains 350 calories. Based upon the daily recommended intake of 2000 calories, one slice of cookie cake provides 17.5 percent of your daily calories.