The binding of IgE antibodies to FcεRs activates these granulocytes, inducing a signaling cascade that causes cells to release the contents of intracellular granules into the blood, a process called degranulation. releases histamine, heparin, and proteases.

TLS Online TPP Program

#Id: 6486

#Unit 3. Fundamental Processes

TBP Binds to and Distorts DNA Using a b Sheet Inserted into the Minor Groove

TBP uses an extensive region of  sheet to recognize the minor groove of the TATA element . This is unusual. More typically, proteins recognize DNA using  helices inserted into the major groove of DNA, as we have seen and also for the factor .

TLS Online TPP Program

#Id: 9331

#Unit 4. Cell Communication and Cell Signaling

In the dark, most transducin is localized to the outer segment, while most arrestin is found in other parts of the cell; in this condition, vision is most sensitive to very low light levels.

TLS Online TPP Program

#Id: 4026

#Unit 7. System Physiology – Animal

Potassium channels remain open for another few tenths of a second, with resultant excess negativity inside the fiber; this process is called hyperpolarization.

TLS Online TPP Program

#Id: 1533

#Unit 2. Cellular Organization

Microtubule-affinity regulating kinase (MARK/Par-1) is a key modulator of tau proteins. 

TLS Online TPP Program

#Id: 7455

#Unit 5. Developmental Biology

RegA is activated by phosphorylation of an aspartate in its response regulator domain.