In the Isoelectric Focusing due to the pH gradient (e.g. pH 3–10) positive charged protein are separated near pH 10 while negatively amino acid are separated near pH 3.

TLS Online TPP Program

#Id: 1426

#Unit 4. Cell Communication and Cell Signaling

I-domains also recognize CAMs on other cells,  ICAMs, VCAMs and participate in cell-cell adhesion.

TLS Online TPP Program

#Id: 1427

#Unit 4. Cell Communication and Cell Signaling

The non-I-domain α subunits recognize RGD motif.

TLS Online TPP Program

#Id: 1428

#Unit 4. Cell Communication and Cell Signaling

TGF-β1 and TGF-β3 contain RGD motif that binds to integrins.

TLS Online TPP Program

#Id: 1429

#Unit 4. Cell Communication and Cell Signaling

Integrins typically exhibit low affinities for their ligands, with dissociation constants (Kd) between 10−6 and 10−7 mol/L.

TLS Online TPP Program

#Id: 1430

#Unit 4. Cell Communication and Cell Signaling

Integrins are involved in biological activities, includes: 

Extravasation

Cell-to-cell adhesion

Cell migration

Receptors for certain viruses

Angiogenesis

Apoptosis

TLS Online TPP Program

#Id: 1431

#Unit 4. Cell Communication and Cell Signaling

Integrins can mediate outside-in and inside-out signaling