Which are functions of the signal recognition particle (SRP)? to pause protein synthesis as the signal...

Which are functions of the signal recognition particle (SRP)?

to pause protein synthesis as the signal sequence emerges from the peptidyl exit tunnel
to deliver the nascent polypeptide to the SRP receptor on the endoplasmic reticulum
to dissociate the nascent polypeptide from the ribosome
to resume protein synthesis after docking to the SRP receptor
to cleave the signal sequence from nascent polypeptides
to translocate the nascent polypeptide into the lumen of the endoplasmic reticulum

Which are functions of the signal recognition particle (SRP)?

to pause protein synthesis as the signal sequence emerges from the peptidyl exit tunnel
to deliver the nascent polypeptide to the SRP receptor on the endoplasmic reticulum
to dissociate the nascent polypeptide from the ribosome
to resume protein synthesis after docking to the SRP receptor
to cleave the signal sequence from nascent polypeptides
to translocate the nascent polypeptide into the lumen of the endoplasmic reticulum

Choose best answer

- 1, 2, 6

- 1, 2, 3, 4

- 2, 4, 6

- 1, 2, 4

- 1, 2, 4, 5

Expert Solution

Signal recognition particles are the one sin charge of catching the new peptides that have the ER signal sequence and insert them into the ER. This particles will slow down translation, will bind the peptide to the ER receptors, and finally will allow for translation to retake normall translation speed. The product peptide will be born into the ER. The signal sequence is cleaved by an enzyme insede the ER.

Let us analyze our options:

to pause protein synthesis as the signal sequence emerges from the peptidyl exit tunnel. This actually occurs and its done by SRPs
to deliver the nascent polypeptide to the SRP receptor on the endoplasmic reticulum. This actually occurs and its done by SRPs
to dissociate the nascent polypeptide from the ribosome. This doesn't occur during translocation
to resume protein synthesis after docking to the SRP receptor. This actually occurs and its done by SRPs
to cleave the signal sequence from nascent polypeptides. This occurs but it is not done by SRPs
to translocate the nascent polypeptide into the lumen of the endoplasmic reticulum. This occurs but it is not done by SRPs

The answer then is: 1, 2, 4

gladiator answered 1 year ago

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