Why Are Polysomes Important?

Polysomal profiling is optimally applied to cultured cells and tissues to track the translational status of an identified mRNA as well as measure ribosome density. This technique has been used to compare the translational status of mRNAs in different cell types.

What is the importance of Polysomes in protein synthesis?

Polysome size is the number of ribosomes bound to a single mRNA molecule. Hence, the higher the polysome size, the greater the coverage of the mRNA due to ribosomes translating it.

How do Polysomes affect translation?

The rate of translation is usually expressed as the polysome-to-monosome (P/M) ratio, which, in theory, decreases with translation initiation defects and increases with defects in elongation.