What directs vesicles carrying proteins modified in the Golgi cisternae to their appropriate place in the cell?
The question is asking about proteins involved in protein targeting. Once proteins have been assigned to appropriate vesicles, the vesicles themselves must be addressed so that they reach the correct cellular location. This is done using a specific SNARE protein. Coatomer proteins and clathrin are necessary to promote the 'nipping off' of segments of the membrane to form vesicles but are not involved in specific targeting. Reference: Harper; 30th edition
A sequence of amino acids within the proteins
A specific carbohydrate bound to the proteins
Coatomer or clathrin proteins coating the vesicle
Complementary SNARE proteins on the vesicle and its target organelle
Structure and function of protein