Allergen Details
| Allergen name: | Por p 4 |
|---|---|
| Allergen source: |
Major taxonomic group: Animalia Arthropoda Order: Decapoda Species: Portunus pelagicus (Blue swimmer crab) NCBI Taxomony ID: 80836 |
| Biochemical name: | Sarcoplasmic Ca-binding protein (SCP) |
| Molecular mass: | 22 kDa |
| Allergenicity: | Sera from 21 crustacean-allergic patients (symptoms + SPT and ImmunoCAP with commercial crustacean extracts) were tested. Of those, 5 (24%) had IgE to a 22 kDa-band in raw and heated crab extract as well as to recombinant Por p 4.0101 as shown by Western blot. Sera from 2 atopic and two non-atopic controls were negative. |
| Route of allergen exposure: | Food |
| Created: | 2026-09-08 16:24:05 |
| Last Updated: | 2026-09-09 11:20:54 |
| Submitter Info: | |
| Name: | Sahel Heidari; Andreas Ludwig Lopata |
| Institution: | James Cook University |
| City: | Townsville, Queensland, Australia |
| Email: | sahel.heidari@my.jcu.edu.au; andreas.lopata@jcu.edu.au |
| Submission Date: | 2026-04-15 |
Comments
Table of Isoallergens
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| Isoallergen and variants | GenBank Nucleotide | GenBank Protein | UniProt | PDB |
|---|---|---|---|---|
| Por p 4.0101 | PZ231490 | YDQ79276 |