Cell Junctions Flashcards

0
Q

Adherens junctions

A

Columnar –> adhesion belt
Cytoskeleton: actin
Link protein: catenins
Cell:cell adhesion molecules: cadherins

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1
Q

Occluding/tight

A

Barrier
Maintain polarity - separate apical/basolateral membranes
Occludins and Claudins adhere apical surface

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2
Q

Desmosomes

A

Adjacent
Cytoskeleton: intermediate
Link protein: desmoplakins
Cell:cell adhesion molecules: desmogleins

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3
Q

Hemidesmosomes

A

Basement membrane
Cytoskeleton: intermediate
Link protein: desmoplakins
Cell:cell adhesion molecules: integrins

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4
Q

Gap junctions

A

Selective diffusion
Connexins spore
Embryogenesis - organisation of developing sheets
Regulated by intracellular pH and Ca2+

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