Ovomucoid
Ovomucoid is a protein found in egg whites. It is a trypsin inhibitor with three protein domains of the Kazal domain family. The homologs from chickens and especially turkeys are best characterized. It is not the same as ovomucin, another egg white protein. Chicken ovomucoid, also known as Gal d 1, is a known allergen. It is the protein most often causing egg allergy. At least four IgE epitopes have been identified. Three other egg white proteins are also identified as allergenic: ovalbumin, ovotransferrin and lysozyme.
