TLS Online TPP Program

#Question id: 3974


 A leucine-zipper motif contains

#Unit 3. Fundamental Processes
  1. a stretch of five leucine residues in a row.

  2. a leucine residue at every seventh position.

  3. a leucine residue complexed with a zinc ion.

  4. an alternating leucine-alanine-proline structure.