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Cell Junctions (Histo)
Baylor Block 1
12
Medical
Graduate
08/18/2009

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Cards

Term
What is another name for zonula occludens?
Definition
Tight junctions.
Term
What is the purpose of tight junctions (zonula occludens)?
Definition
Sealing (preventing material from being transmitted from cell to cell).
Term
What is the primary filament associated with tight junctions (zonula occludens)?
Definition
Actin.
Term
What are the primary proteins that make a zonula occluden (tight junction)?
Definition
Occludin and claudin.
Term
Where are zonula occludens (tight junctions) found?
Definition
The apical surface of cells.
Term
What protein is used as an intracellular connector in zonula occludens (tight junctions)?
Definition
ZO proteins.
Term
What is another name for zonula adherens?
Definition
Adherent junctions.
Term
What is the primary cytoskeletal fiber used in zonula adherens (adherent junctions)?
Definition
Actin.
Term
What are the proteins used as intracellular connectors in adherent junctions (zonula adherens)?
Definition
alpha-actinin, catenins, vinculin.
Term
What is the purpose of the adherence junction (zonula adherens)?
Definition
Sealing.
Term
What is used as an intracellular ligand in zonula adherens (adherent junctions)?
Definition
Calcium.
Term
Where are zonula adherens (adherent junctions) found?
Definition
Less apical than the zonula occludens (tight junctions).
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