PIN7 and PIN3 are thought to redirect auxin back into vascular parenchymal tissue, where polar transport takes place.

TLS Online TPP Program

#Id: 2389

#Unit 3. Fundamental Processes

In general, SR proteins bind to exonic splicing enhancers and the hnRNP proteins bind to exonic silencers

TLS Online TPP Program

#Id: 1460

#Unit 4. Cell Communication and Cell Signaling

In cis interactions (intracellular or lateral interactions) monomeric CAMs on one cell bind to one or more CAMs in the same cell’s plasma membrane.

TLS Online TPP Program

#Id: 7966

#Unit 2. Cellular Organization

Binding of BiP to the luminal domain of monomeric Ire1 prevents formation of the Ire1 dimer.

TLS Online TPP Program

#Id: 7446

#Unit 5. Developmental Biology

Adenylate cyclase A (ACA), is responsible for the synthesis of cAMP.

TLS Online TPP Program

#Id: 790

#Unit 3. Fundamental Processes

Sequences of Rho dependent transcription termination

1. Rho binds a rut site. 

2. The rho factor then tracks along the RNA until it catches up to RNA polymerase. 

3. When the RNA polymerase reaches the termination site, rho first freezes the structure of the polymerase and then invades the exit channel to destabilize the enzyme, causing it to release the RNA. 

4. Pausing by the polymerase at the site of termination allows time for rho factor to translocate to the hybrid stretch.