Sparkly- “NO MORE talking about drugs thats boring!! back to organic chemistry and a and p interesting stuff!!”
I hope you are joking, since you plan to spend the rest of your life talking and thinking and handling drugs!
And by the way, a ligase is any enzyme that catalyzes a ligation reaction- i.e covalently conjugates 2 molecules- it could be in the context of adding nucleotides to DNA (DNA ligase), or it could be joining a ubiquitin molecule to a Lys residue on a protein (E3 ligase).