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.
The number of calories in a glazed donut depends on the brand of donut. The Original GlazedÂ® Doughnut from Krispy Kreme has 190 calories. A glazed donut from Dunkin' Donuts has 260 calories.