Final answer:
T-SNARE proteins play a crucial role in catalyzing fusion of residues with the target membrane during vesicle docking.
Step-by-step explanation:
In the process of vesicle docking, the fusion of residues with the target membrane is catalyzed by proteins known as T-SNARE (target-SNARE) proteins.
When V-SNARE (vesicle-SNARE) proteins on the vesicles bind to complementary T-SNARE proteins on the target membrane, they initiate the fusion process. This binding brings the vesicle and target membrane close together and allows them to merge, delivering the vesicle contents to the target membrane.
Examples of T-SNARE proteins include SNAP-25 and Syntaxin, while V-SNARE proteins include VAMP or Synaptobrevin.