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.
Turn the brats every 5 minutes. After 5 minutes have passed, open the oven and use an oven mitt to hold onto the broiler pan. Use tongs to turn over each brat. Put the pan back in the oven for another 5 minutes, and then turn the brats again. Cook the bratwurst for a total of 15-20 minutes.