Question

sort the following secondary structure characteristics into the correct categories. items (6 items) (drag and drop into the appropriate area below) side chains alternating above and below the structure one full turn every 3.6 amino acids cylindrical structure formed by hydrogen - bonding between backbone atoms can be formed by many sequences consists of antiparallel or parallel strands categories a helix only β sheet only both a helix & β sheet

Explanation:

• α - helix only: One full turn every 3.6 amino acids, Cylindrical structure. In an α - helix, there is a regular repeat of 3.6 amino acids per turn and it has a cylindrical shape.
• β - sheet only: Consists of antiparallel or parallel strands. β - sheets are made up of strands that can be arranged in either an antiparallel or parallel fashion.
• Both α - helix & β - sheet: Side chains alternating above and below the structure, Formed by hydrogen - bonding between backbone atoms, Can be formed by many sequences. In both α - helices and β - sheets, side chains are oriented above and below the main - chain structure, they are stabilized by hydrogen bonds between backbone atoms, and a wide variety of amino - acid sequences can form them.

Answer:

• α - helix only: One full turn every 3.6 amino acids, Cylindrical structure
• β - sheet only: Consists of antiparallel or parallel strands
• Both α - helix & β - sheet: Side chains alternating above and below the structure, Formed by hydrogen - bonding between backbone atoms, Can be formed by many sequences