Question

Which protein on the target compartment plays a critical role in the initial recognition

of a vesicle?
A Rab proteins
A. Tethering proteins
B. Adaptin proteins
C. Clathrin proteins
D. SNARE proteins

Answer 1

T-SNARE proteins on the target compartment are critical for the initial recognition and eventual fusion of vesicles by binding with complementary V-SNARE proteins.

Step-by-step explanation:

The protein on the target compartment that plays a critical role in the initial recognition of a vesicle is T-SNARE (for target-SNARE) proteins. These proteins work in conjunction with V-SNARE (for vesicle-SNARE) proteins present on the vesicles. When V-SNARE proteins bind to complementary T-SNARE proteins on the receiving membranes, this leads to the fusion of the vesicle and the target compartment membrane, thus delivering the vesicle’s contents to its final destination.