25. Coated Vesicles Flashcards
Coated vesicles structure
What’s the size of coated vesicles? Does it have spines? Does it have a membrane?
What are some types of coated vesicles?
The size of coated vesicles varies but it’s usually between 20 to 250 nanometers. Coated vesicles have spines that’s why they’re called coated vesicles. It has its own membrane.
There are three types of coated vesicles they are clathrin coated vesicles, coatomer coated vesicles and caveolae vesicles.
Clathrin coated vesicles
What do they selectively transport? How are the clathrin molecules bound? How are they formed? How many is produced every minute?
Coatomer coated vesicles
What are the two types of coatomer coated vesicles? What is the cop 1 involved in? What’s the cop 2 involved with?
Caveole
What is a caveole? What are caveole ivaginations of? In What cells are they found? What do they completely lack?
Clathrin coated
They mediate selective transport of transmembrane receptors. The clathrin molecules are bound via adaptin. They are formed by endocytosis or Golgi apparatus. About 2500 is produced every minute in our bodies.
Coatomer coated vesicles
There is cop 1 (beta cop) and cop 2 (Alfa cop).
Cop 1 is involved with the retrograde transport from the Golgi apparatus to the endoplasmic reticulum and also in the intra Golgi transport between its cisternae. The cop 2 is invoked with anterograde transport from the endoplasmic reticulum to the Golgi apparatus.
Caveole
A caveole is a type of receptor mediated endocytosis. Caveole are invaginations of the plasma membrane. They are found in endothelial cells and adipocytes. They completely lack in neurons.
