What is the role of cargo receptors in protein transport?

Cargo receptors play a crucial role in the transport of proteins by specifically binding to certain proteins that need to be packaged into transport vesicles. This binding ensures that the proteins are recognized and correctly included in the vesicles formed at the donor membrane, facilitating their journey to the appropriate destination within the cell. By selectively accumulating cargo, these receptors help maintain the specificity and efficiency of the protein trafficking system, ensuring that proteins reach their correct compartments in the cell and function properly. This targeted approach is essential for cellular organization and the proper functioning of various cellular processes.