Septins assemble into nonpolar filaments that form rings and cagelike structures, or recruit and organize the actin and microtubule cytoskeletons.

TLS Online TPP Program

#Id: 1559

#Unit 4. Cell Communication and Cell Signaling

Wnt proteins are synthesized in the ER & modified by the addition of lipids (palmitic and palmitoleic acid).

 

TLS Online TPP Program

#Id: 5538

#Unit 7. System Physiology – Animal

In the thick segment of the ascending loop of Henle  reabsorption mechanism is load-dependent.

TLS Online TPP Program

#Id: 7213

#Unit 5. Developmental Biology

Class I presentation requires internal synthesis of virus protein, as shown by the requirement that the target cell be infected by live virus, and by the inhibition of class I presentation observed when protein synthesis was blocked by the inhibitor emetine

TLS Online TPP Program

#Id: 8354

#Unit 2. Cellular Organization

Listeria is a food-borne bacterial pathogen has on its surface a protein ActA, which mimics an NPF that efficiently activates the Arp2/3 complex.

TLS Online TPP Program

#Id: 10479

#Unit 4. Cell Communication and Cell Signaling

Loss-of-function mutations in PTC1 permit cell

proliferation in the absence of an Hh signal