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.
Some of the higher calorie donuts like the Chocolate Coconut Cake Donut provide 550 calories and 39 grams of fat. Other fatty choices include: Bismark: 490 calories. Glazed Fritter: 410 calories. Glazed Jelly Stick: 480 calories. Lemon Stick: 430 calories. Peanut Donut: 450 calories. Vanilla Frosted Coffee Roll: 400 calories.