Other dyes that bind to DNA and allow for similar types of cell cycle analysis include DAPI, Hoechst 33342, and 7-aminoactinomycin D (AAD).

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Hemidesmosomes

Function- Shape, rigidity, signaling

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#Unit 4. Cell Communication and Cell Signaling

Focal adhesions 

Adhesion type- Cell-matrix

Adhesion receptors- Integrins

Cytoskeletal attachment- Actin filaments

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Focal adhesion

Function- Shape, signaling, force transmission, cell movement

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#Unit 4. Cell Communication and Cell Signaling

Tight junctions seal off body cavities and restrict diffusion of membrane components.

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#Unit 4. Cell Communication and Cell Signaling

Tight junctions prevent the diffusion of: 

Macromolecules

Small water-soluble molecules

Ions

Membrane proteins 

Glycolipids

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Ca2+-dependent cadherin- mediated adhesion also plays an important role in tight-junction formation, stability, and function.