Yes. Within "The Chemical Reactions of Amino Acids / Reactions of Amino Groups" there are several examples - one of which is the ninhydrin reaction. A very widely applied reaction of the alpha amino...
Yes, ninhydrin reagent reacts with proline. Proline and hydroxyproline yield a yellow coloured product unlike other amino acids that yield a puple colored product.
It should react to this reagent. However it must be HEATED before it will react.
This is due to the fact that when Ninhydrin is heated it stabilizes and the reacts with the -NH2 groups on the...