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.
The 2.5 grams of fiber make the net carbs for regular-crust pizza 33.2 grams. Stay away from thick-crust pizzas, since each slice from a 14-inch cheese pizza, weighing in at about 4 ounces, contains 312 calories and 38.1 grams of carbs, including 2.5 grams of fiber, making the net carbs 35.6 grams. This is most of the 45 to 60 grams of carbohydrates a diabetic should usually consume in each meal.