Allergen Fel d 4 Protein, Cat (His-SUMO)

Allergen Fel d 4 Protein, Cat (His-SUMO) is a recombinant protein with a His-SUMO tag. Fel d 4 is a lipocalin allergen produced by the cat, which binds IgE at relatively high frequency in cat-sensitive individuals^[1].

Fel d 4 is a lipocalin allergen produced by the cat, which binds IgE at relatively high frequency in cat-sensitive individuals. The allergen provides not only a means for investigating differences in the immune response to lipocalin allergens from that found for other mammalian species but also an important reagent for the diagnosis of cat allergy^[1].

Cat

E. coli

N-His;N-SUMO

Q5VFH6 (H16-E186)

493739  [NCBI]

HEEENVVRSNIDISKISGEWYSILLASDVKEKIEENGSMRVFVEHIKALDNSSLSFVFHTKENGKCTEIFLVADKTKDGVYTVVYDGYNVFSIVETVYDEYILLHLLNFDKTRPFQLVEFYAREPDVSQKLKEKFVKYCQEHGIVNILDLTEVDRCLQARGSEVAQDSSVE

Approximately 35.7 kDa

Greater than 90% as determined by reducing SDS-PAGE.

<1 EU/μg, determined by LAL method.

• [1]. Smith W, et al. Fel d 4, a cat lipocalin allergen. Clin Exp Allergy. 2004;34(11):1732-1738.  [Content Brief]