Cell wall protein involved in development of asexual structures such as phialide and conidium development, and thus required for spore formation (By similarity). Plays a role as a general stress protectant produced by the fungus in competition with antagonistic bacteria (By similarity). Expression is higher at 32 degrees Celsius than at 17 degrees Celsius. Major allergen that causes an allergic reaction in human. Binds to IgE. Belongs to the phiA family.