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Fel d 1

A major allergen associated with cat allergy. Fel d 1 is highly correlated with cat-related allergy symptoms. This well-characterized protein is measured in each lot of manufactured cat extract, serving as the basis for cat extract standardization. The naming convention for allergens is to sequentially number the proteins following a shortened form of the Latin… read more 705357C1-B577-4332-A248-2D41FB183786Created with sketchtool.

Profilin & Pan-Allergens

Profilin & Pan-Allergens Cross-reactivity is often seen between unrelated species due to shared minor allergens such as Profilin. A minor allergen is an allergenic protein that has demonstrated clinical sensitivity in a minority of patients in a population. Common allergens that demonstrate clinical sensitivity across unrelated species are known as Pan-Allergens. Profilin is a structual… read more 705357C1-B577-4332-A248-2D41FB183786Created with sketchtool.

Standardized Extracts

Standardized Extracts The FDA has mandated standardization testing for a limited number of extracts. The purpose of standardization is to minimize the amount of variability between lots and manufacturers of the same extract. Extracts that have been standardized by the FDA include the northern pasture grasses (Timothy, June, Meadow Fescue, Orchard, Redtop, Perennial Rye, Sweet… read more 705357C1-B577-4332-A248-2D41FB183786Created with sketchtool.