TLS Online TPP Program

#Question id: 31335


The following statements are made with reference to  SNARE proteins & membrane fusion reactions in vesicle transport. Which of the following statement is incorrect?

#Unit 2. Cellular Organization
  1. The v-SNARE, known as vesicle-associated membrane protein, is incorporated into secretory vesicles as they bud from the trans-Golgi network.
  2. The t-SNAREs are syntaxin, a lipid anchored protein and SNAP-25, an integral membrane protein in the plasma membrane.
  3. The cytosolic region in each of these three SNARE proteins contains a repeating heptad sequence that allows four α helices to coil around one another to form a four-helix bundle.
  4. After fusion is completed, the SNARE complex is disassembled in an ATP-dependent reaction mediated by other cytosolic proteins.