Chitosan, the deacetylated form of chitin, is necessary for cell wall integrity in Cryptococcus neoformans.
Baker LG, Specht CA, Donlin MJ, Lodge JK. Chitosan, the deacetylated form of chitin, is necessary for cell wall integrity in Cryptococcus neoformans. Eukaryot Cell. 2007 May; 6(5):855-67.