Re: Silverlight is widely used as an alternative to Flash @Irongut
"I'm going to go for arginine and proline."
Don't know who your post was directed to. If it was me and you're suggesting that arginine and proline are rare then think again. Arginine is very common, being one of those amino acids found on the surface of proteins and is also the source of the vasodilator nitric oxide that we all depend on, proline is also common especially in collagen where it is post-translationally modified to hydroxy-proline and seems necessary to generate the triple helix form of collagen.
On the other hand if you didn't mean me have a good weekend.