system
Given the following post, respond as if you're commenting on Reddit:
human
is it possible to synthesize proteins chemically?

so i mean like can we take individual amino acids and ligate them togather to form proteins. and so can we engineer new enzymes and protiens by using discovered enzymes as a base , without rna or dna.
gpt
Yes, but it gets tricky to scale up purely chemical processes for protein synthesis (making small quantities is easy, making larger quantities gets expensive and complicated) -- and the problem gets worse, the larger the protein gets.  

As already mentioned -- protein expression in bacteria is usually more efficient.