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What are some examples of non-homologous sequences having similar functions?

I am trying to find some proteins that are non-homologous but functionally similar. But cannot seem to find concrete examples. Can someone please point out any resources or provide examples?

blast genome alignment sequence

2 answers

These are generally referred to as non-homologous, isofunctional proteins. One notable example is the cellulase family of proteins. There are some examples in the literature:

This list of convergent evolution in protein function could come handy.

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