Hospital unit clerks play a vital role in managing communication and information in hospital nursing units, and are the first point of contact for patients. Learn medical terminology, how to process medical orders, communication skills, administrative procedures, and computer skills.
Protein Structure. Proteins are polymers of amino acids. The amino acids of a protein are linked by peptide bonds. Alpha helices and beta pleated sheets are characteristic of a protein's secondary structure. Electronegative oxygen and nitrogen atoms leave hydrogen atoms with partial positive charges. Peptide bonds link together the amino acids of a protein's primary structure.
Secondary structure: areas of folding or coiling within a protein; examples include alpha helices and pleated sheets, which are stabilized by hydrogen bonding.Tertiary structure: the final three-dimensional structure of a protein, which results from a large number of non-covalent interactions between amino acids.Quaternary structure: non-covalent interactions that bind multiple polypeptides into a single, larger protein.est Answer: Levels of Protein Structure Structural features of proteins are usually described at four levels of complexity: Primary structure: the linear arrangment of amino acids in a protein and the location of covalent linkages such as disulfide bonds between amino acids.