Epithelial cell junctions Flashcards
What type of junction prevents paracellular movement of solutes?
Tight junction
Desmoplakin is part of what larger structure?
Desmosome
What’s another name for a desmosome?
Macula adherens
What type of junction allows electrical and chemical communication btwn cells?
Gap jxn
What’s another name for zonula adherens?
Adherens junction
Claudins and occludins make up what type of junction?
Tight junction
What structure connects keratin in basal cells the the underlying basement membrane?
Hemidesmosome
What structure do hemidesmosomes use to attach to basement membrane?
Integrins
What channel proteins make up gap junctions?
Connexons
What structure provides structural support to epithelium by connecting neighboring cells via keratin interactions?
Desmosomes
What do adherens junctions connect? What do they use to connect them?
Actin cytoskeletons of adjacent cells; connect them with cadherins
Cadherins are dependent on what ion to function?
Ca
What’s another name for a zonula occludens?
Tight junction
What portion of basement membrane do integrins bind?
Collagen and laminin
