Primary Structure. 1  Proteins are made up of polypeptide chains, which are amino acids joined together with peptide bonds. 2  The unique sequence of amino acids that make up a protein or polypeptide chain is called the Primary Structure.
Put your uncooked brats on a broiler pan and pop them in the oven, cooking them for about five minutes at a time on each side. Keep turning them until they brown up nicely and are good to go. This should take 15-20 minutes for uncooked brats and just 5-10 minutes for precooked bratwurst.
In my experience, the secret is simply patience. How long to grill bratwurst depends on how you grill them. You can throw them straight on the grill which will take about 25-30 minutes or boil the brats in beer, wine or water for about 20 minutes. After boiling, then they are grilled for 4-6 minutes.