Egg albumen is mostly composed of simple proteins and protein complexes such as ovalbumin, ovoglobulin, ovoconalbumin and glycoproteins including ovomucin and ovomucoid
(Romanoff and Romanoff, 1963) and the presence of anti-bacterial lysozyme as likely to be a factor limiting the growth of bacteria L.
in egg allergy and casein in cow's milk protein allergy), severity of reactions (e.
Children sensitized to ovomucoid
, (Gal d 1) on the other hand, may need to avoid all forms of egg, and are unlikely to develop tolerance.
The allergic reaction is most typically caused by a child's immune system overreacting to one of the proteins in egg white, most commonly a protein called ovomucoid
A study in 2000 explored the structural changes, such as cross linking, induced in ovalbumin, ovomucoid
, and ovotransferrin by the effect of oxygen radicals generated by gamma radiation.
Assessment of risk of clinical reaction in egg allergy using ImmunoCap Allergen tests Low risk Low risk High risk F1 Negative F1 Positive F1 Positive f233 Negative f233 Negative f233 Positive Tolerates cooked egg Egg allergy tends to persist f1 = egg white; f233 = Ovomucoid
D-Mannose, Man-[alpha] (1,2)-Man, Man-[alpha] (1,3)-Man, Man-[alpha] (1,6)- Man, Man-[alpha] (1,3:1,6)-mannotriose, methyl [alpha]- D-mannopyranoside, p-nitrophenyl [beta] - D-mannopyranoside, D-fructose, D-glucose, D-lactose, maltose, D-fucose, D-galactose, sucrose, N-acetyl D-galactosamine, N-acetyl-n-glucosamine, thyroglobulin, ovomucoid
, acyclovir, dimethylsulfoxide (DMSO), isopropanol, 3-(4,5-dimethylthiazol-2-yl)-2, 5-diphenyltetrazoliumbromide (MTT), z-VAD-fmk (pan-caspase inhibitor), z-DEVD-fmk (caspase 3 inhibitor), z-IETD-fmk (caspase-8 inhibitor) and z-LEHD-fmk (caspase-9 inhibitor) were purchased from Sigma (St.
Albumin, livetin, ovalbumin, ovomucin, ovomucoid
and ovovitellin would be labeled as "egg.
Positive controls should be antigens positive in humans, such as peanut Ara h2 and peanut lectin, brazil nut 2S-albumin, ovomucoid
, ovalbumin, and [beta]-lactoglobulin.
The four major allergenic proteins are ovomucoid
, ovalbumin, ovotransfferin and lysozyme.
is a glycoprotein obtained from egg whites that has been shown to be useful in the separation of cationic solutes (141).
A novel genetic marker of the ovomucoid
gene associated with hatchability in Tsaiya ducks (Anas platyrhynchos).