Both proteins can perform their role in binding to and stabilizing the ribosome, suggesting that the protein's structure is not tightly linked to its function in this case.

Source: https://phys.org/news/2023-12-ribosomal-protein-remarkable-evolutionary.html

It also means the ribosome now hits one of the stop codons in the initiation-termination sequence, which it missed the first time around (Figure 6).

Source: https://www.forbes.com/sites/williamhaseltine/2023/04/17/contrary-to-conventional-wisdom-some-virusoids-can-make-proteins/