B. thuringiensis is a spore forming bacterium, which produces a crystal protein as parasporic inclusion in the vegetative cell containing the spore.

TLS Online TPP Program

#Id: 10084

#Unit 4. Cell Communication and Cell Signaling

Several integrin α subunits contain, I-domain, which can mediate binding of integrins to various collagens in the ECM.

TLS Online TPP Program

#Id: 10085

#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: 10086

#Unit 4. Cell Communication and Cell Signaling

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

TLS Online TPP Program

#Id: 10087

#Unit 4. Cell Communication and Cell Signaling

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

TLS Online TPP Program

#Id: 10088

#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: 10089

#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