Protein biosynthesis in an RNA world could have had the following components: ribozymes instead of ribosomes, flexizymes instead of aminoacyl-tRNA-synthetases, mRNAs, tRNAs, other kinds of RNAs. Is there anything more needed for protein biosynthesis? What?
(Does the environment of early genetic code evolution have enough ATP? Are proteins needed for proper tRNA folding?)
Are proteins needed for protein biosynthesis or is RNA in the right environment enough to build a translation process?
Thanks in advance.
Matthias R. Schaefer thanks for your interest. My question is about the end of the RNA world and the roots of protein biosynthesis. I want to know how the transition could have been. There are lots of theories but I found none that consider many aspects. There are theories about the first amino acids but not what the translation process they took part in looked like and theories about aaRSs withouth codon recognition domains but where did these aaRSs come from when there was no translation process before their existence?
I appreciate any piece of information related to the topic no matter if it's knowledge, theory or hypothesis or a couple of reasonable assumptions.
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