see Wikipedia's definition of Proteus. Not sure it will inspire confidence...
Proteus is a genus of Gram-negativeProteobacteria. Proteus bacilli are widely distributed in nature as saprophytes, being found in decomposing animal matter, sewage, manure soil, the mammalian intestine, and human and animal feces. They are opportunistic pathogens, commonly responsible for urinary and septic infections, often nosocomial.
Most likely someone has a list of Greek mythology characters they're working their way through, rather than using 'Fund 1, 2, 3 etc'. I've seen something done before which was creating a word association to whatever the Google Doodle was that day.