TLS Online TPP Program

#Id: 1608

#Unit 4. Cell Communication and Cell Signaling

Apoptotic cells attract phagocytes by releasing the lipid mediator lysophosphatidic acid, which functions as a chemoattractant.

TLS Online TPP Program

#Id: 4012

#Unit 7. System Physiology – Animal

The inherent leakiness of the sinus nodal fibers to sodium and calcium ions causes their self-excitation.

TLS Online TPP Program

#Id: 2638

#Unit 13. Methods in Biology

One simply harvests cellular RNA containing the transcript whose 59-end is to be mapped and whose sequence is known. 

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: 6610

#Unit 7. System Physiology – Animal