There are lots of other strange sounding proteins in biology, e.g Dickkopf (DKK), which is german for 'thick head', because increased Dickkopf-1 makes large heads in a certain tadpole species. There are also toll-like receptors ('toll' being german for 'yay'), because their discoverer, Nobel laurate Christiane Nüsslein-Volhard, was very excited when she found them.
There's a signal transduction pathway where a mitogen activated protein (MAP) is phosphorylated by a MAP kinase, which itself is phosphorylated by a MAP kinase kinase, which is phosphorylated by a MAP kinase kinase kinase, which is phosphorylated by (you guessed it) a MAP kinase kinase kinase kinase.
One of my personal favorite protein names is Mothers Against Decapentaplegic. As with most of the funny gene names it was coined by drosophila researchers.
