Structure of the protein 1EFN, with focus on its tertiary structure. The term protein tertiary structure refers to a protein 's geometric shape. The tertiary structure will have a single polypeptide chain backbone with one or more protein secondary structures, the protein domains. Amino acid side chains may interact and bond in a number of ways. The interactions and bonds of side chains within a particular protein determine its tertiary structure. The protein tertiary structure is defined by its atomic coordinates.
1 Grill your ribs for 3 hours bone-side down. 2  Wrap them in foil and grill, bone-side up, for 30 to 60 minutes. 3  Same as with baby backs, you can an extra special touch here by pouring a cup of apple cider or juice into the foil packet.4  Unwrap them and grill for 30 more minutes bone-side down.efore we get into how long you should grill your ribs there's one important thing to keep in mind: while dry spice rubs should be applied before you start to cook, sauces should not be applied until the last 20 minutes of cooking at the earliest.
2. Cook the ribs slowly for 1-1/2 to 2 hours, over medium heat (325Â° to 350Â°) and over a drip pan half filled with water. Long, slow cooking makes for moist and tender ribs with a crisp crust. If in the first 30 minutes the ribs are browning too quickly, shut the grill vents. 3. Determining when pork ribs are done is a little tricky, but after 1-1/2 to 2 hours, you can be virtually certain that the ribs are fully cooked. However, the meatâs color is not an indication of doneness.