[resiros]

> However, the point the article is making is that for different functions the same basic folds seem to be used again and again.

That's a basic fact in bio. Check the rossman fold page for example: https://en.wikipedia.org/wiki/Rossmann_fold it's a template used for many functions.

[flobosg]

Same with the TIM barrel fold. It can catalyze a wide range of reactions.