RNA Polymerase I has a Bipartite Promoter

 

TLS Online TPP Program

#Id: 7533

#Unit 6. System Physiology – Plant

Dense plastids serve as gravity sensors

Gravity does not form gradient.

The only way of sensing gravity is through the motion of a sedimenting body.

In plants intracellular gravity sensors are large, dense amyloplast.

Statoliths –amyloplasts that function as gravity sensors.

Statocytes-specialized gravity sensing cells in which statoliths are present.

TLS Online TPP Program

#Id: 1893

#Unit 4. Cell Communication and Cell Signaling

Superantigens

Viral or bacterial proteins that bind simultaneously to the Vβ domain of a T-cell receptor and to the α chain of a Class II MHC molecule

TLS Online TPP Program

#Id: 7512

#Unit 6. System Physiology – Plant

TLS Online TPP Program

#Id: 6501

#Unit 3. Fundamental Processes

The phosphorylation pattern on the CTD is dynamic during the elongation process, catalyzed and controlled by multiple protein kinases, including P-TEFb, and phosphatases. Most oft the basal transcription factors are released from the promoter at this stage.

TLS Online TPP Program

#Id: 3983

#Unit 2. Cellular Organization

The human type II topoisomerases are targeted by doxorubicin (Adriamycin), etoposide (Etopophos), and ellipticine.

Most of these drugs stabilize the covalent topoisomerase-DNA (cleaved) complex.