KDEL receptor, located mainly in the cis-Golgi network and in both COPII and COPI vesicles, binds proteins bearing the KDEL sorting signal and returns them to the ER

TLS Online TPP Program

#Id: 782

#Unit 3. Fundamental Processes

1100 sequences in the E. coli genome that fit these criteria, suggesting more than half of the cell’s transcripts are terminated at intrinsic terminators.

TLS Online TPP Program

#Id: 783

#Unit 3. Fundamental Processes

TLS Online TPP Program

#Id: 784

#Unit 3. Fundamental Processes

Misalignment of RNA combined with the unusually weak RNA–DNA hybrid formed from the rU-dA RNA–DNA base pairs resulting from the stretch of U residues, destabilize the elongation complex.

TLS Online TPP Program

#Id: 785

#Unit 3. Fundamental Processes

Termination efficiency can vary from 2% to 90%, Point mutations reduce termination efficiency usually occur within the stem region of the hairpin, replacing GC base pairs with weaker AT base pairs

 

TLS Online TPP Program

#Id: 786

#Unit 3. Fundamental Processes

Readthrough transcripts refer to the fraction of transcripts that are not stopped by the terminator. 

TLS Online TPP Program

#Id: 787

#Unit 3. Fundamental Processes

Termination is prevented by specific ancillary factors that interact with RNA and/or RNA polymerase, a situation referred to as antitermination.