Related proteins that are just as wonderful:<p><a href="https://en.wikipedia.org/wiki/ATP_synthase" rel="nofollow">https://en.wikipedia.org/wiki/ATP_synthase</a><p><a href="https://en.wikipedia.org/wiki/Type_III_secretion_system" rel="nofollow">https://en.wikipedia.org/wiki/Type_III_secretion_system</a>