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 […]

Abscisic acid (ABA), also known as abscisin II and dormin, is a plant hormone. ABA functions in many plant developmental processes, including bud dormancy. It is degraded by the enzyme (+)-abscisic acid 8′-hydroxylase into phaseic acid.

Of 30 patients allergic to London plane tree pollen, 83% showed serum IgE binding to 43 kD protein on immunoblot of P. acerifolia extract.

Major apple (Malus domestica) allergen Mal d 1, a ribonuclease, is a heat-sensitive allergen and belongs to the protein class of pathogenesis-related (PR) proteins. The allergen shares homologous IgE epitopes with major birch pollen allergen Bet v 1 and Cor a 1 from hazelnut pollen.

Fel d 1 is a secretoglobin protein that, in cats, is encoded by the CH1 (chain 1/Fel d 1-A) and CH2 (chain 2/Fel d 1-B) genes. Among cats, Fel d 1 is produced largely in their saliva and by the sebaceous glands located in their skin. It is the primary allergen present on cats and […]

Dust mite allergy, also known as house dust allergy, is a sensitization and allergic reaction to the droppings of house dust mites. The allergy is common and can trigger allergic reactions such as asthma, eczema or itching. It is the manifestation of a parasitosis. The mite’s gut contains potent digestive enzymes (notably peptidase 1) that […]

Salmonella is a gram-negative, rod-shaped (bacillus) bacteria genus that belongs to the family Enterobacteriaceae. Salmonella contains two species: Salmonella enterica and Salmonella bongori. The type species is Salmonella enterica (S. enterica), which is widely found in warm-blood animals all over the world. Salmonella enterica can be further catalogued into 6 subspecies, with more than 2,500 […]

Retinoic acid is a metabolite of vitamin A (retinol) that mediates the functions of vitamin A required for growth and development. Retinoic acid is required in chordate animals which includes all higher animals from fishes to humans. During early embryonic development, retinoic acid generated in a specific region of the embryo helps determine position along […]