Question

You need decapping enzymes (Dcp1&2) and decapping activators (Dhh1/RCK/p54) → work together. Without the cap, mRNA is exposed to (this direction) exoribonucleases and is degraded.

A) 5' to 3'
B) 3' to 5'
C) 5' to 5'
D) 3' to 3'

Answer 1

The decapping enzymes (Dcp1&2) and decapping activators (Dhh1/RCK/p54) work together to remove the protective cap from mRNA, thus exposing it to degradation by exoribonucleases in the 5' to 3' direction.

Step-by-step explanation:

The decapping enzymes (Dcp1&2) and decapping activators (Dhh1/RCK/p54) work together to remove the protective cap from mRNA.

Without the cap, the mRNA is exposed to exoribonucleases and is degraded.

This degradation occurs in the 5' to 3' direction.