What is ige allergy test

What is ige allergy test

Peanut Component Reflex, S

Specimen Required


Preferred: Red top

Acceptable: Serum gel

Specimen Volume: mL

Additional Information: See Allergens – Immunoglobulin E (IgE) Antibodies in Special Instructions.

Seattle Children's Hospital Note:

Collect mL — mL whole blood in a Red top container.

mL — mL whole blood in a Gold/SST container is also acceptable.

Testing Algorithm

Testing begins with analysis of peanut IgE.

What is ige allergy test

If peanut IgE is undetectable (< kU/L), testing is completed.

If peanut IgE is detectable (≥ kU/L), then the 5 peanut components (Ara h 2, Ara h 1, Ara h 3, Ara h 8, and Ara h 9) are performed at an additional charge.

Reflex Tests

Test ID Reporting Name Available Separately Always Performed
PNTCO Peanut Components, S No No

Seattle Children's Hospital Note:

Clinical System Name: Allergen Peanut IgE w/Rflx to Components

Method Name

Fluorescent Enzyme Immunoassay (FEIA)

Specimen Type


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What is ige allergy test

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Allergen Details:

Allergen name: Cas s 1
Lineage: Source: Plantae Magnoliopsida
Order: Fagales
Species: Castanea sativa(Chestnut)
Biochemical name: Pathogenesis-related protein, PR, Bet v 1 family member
MW(SDS-PAGE): 22 kDa
Allergenicity: 8 out of 8 patients suffering from tree pollen allergy showed serum IgE binding to purified Cas s 1 on immunoblot.

What is ige allergy test

Purified Cas s 1 was capable to induce IgE-mediated histamine-release in one patient tested.

Allergenicity reference:
Route of allergen exposure: Airway
Date Created:
Last Updated:
Submitter Info:
Submission Date:

Table of IsoAllergens Click +/- for additional information

Isoallergen and variants GenBank Nucleotide GenBank Protein UniProt PDB

Useful For

Evaluation of patients with suspected peanut allergy

Evaluation of patients with possible peanut cross-reactivity