Interspersed within the exons are introns, regions of non-coding DNA. Introns must be removed from the initial transcript of mRNA before the final mature transcript is sent to the ribosome for translation into protein. This removal is done in a coimplex protein structure called the spliceosome.The spliceosome splices out the non-coding introns from the primary mRNA transcript, and stiches the exons back together into the mature mRNA transcript.he spliceosome is a complex of small nuclear RNA (snRNA) and small nuclear protein (snRNP) molecules, snRNAs and snRNPs.
Calorie Breakdown. A slice of fast-food cheese pizza weighing approximately 103 g contains 272 calories, 33.56 g of carbohydrate, 12.27 g of protein, 9.8 g of fat, 4.35 g of saturated fat, 1.8 g of fiber, 551 mg of sodium and 22 mg of cholesterol, notes the U.S. Department of Agriculture's National Nutrient Database.
One slice of Pizza Hut's large stuffed crust pizza contains 360 calories, 13 g of fat, 18 g of protein and 43 g of carbohydrates. The carbohydrate level may seem high, but it is less than the carb count in many pizzas sold in high school cafeterias as well as local pizzerias.epperoni Pizza, 7-inch Slice. In a typical slice of pepperoni pizza served for lunch at a high school or at a pizzeria, there are 69 g of carbohydrates. The pepperoni pizza also provides protein, which can be used to build muscle. The individual on the low-carb or no-carb diet will want to avoid pepperoni pizza.