End of DNA translation question.

Question

sweetburger · Answer

So in DNA translation a proton release factor containing the stop codon binds to the A site of large ribosomal sub unit which in turn terminates elongation and releases the polypeptide strand formed in the elongation step. Now I believe that the ribosomal subunits break apart along with the mRNA being released to be recycled again. So when it comes to signal peptides why is the mRNA, the ribosomal subunits, and the long polypeptide strand all still attached when binding to the Endoplasmic reticulum? I'm assuming it has to do with being able to transfer the polypeptide into the ER, but why is this step different then normal DNA translation?

hanamalik · Answer

So, what exactly is your question?

hanamalik · Answer

Is it the last sentence?