Nobel Intent: Hypoallergenic cats are nothing to sneeze at

Cats produce a protein, FEL D1, that is an exquisite allergen for some sensitive individuals, meaning contact with a kitty results in streaming eyes, sneezing and general unhappiness on the human side of the relationship.[...] In an effort to bring cats to the cat-challenged, Allerca, a San Diego-based biotech planned to harness gene silencing techniques to develop a breed of cat that did not express FEL D1, thus creating a hypoallergenic cat.