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Published on: September 16, 2022
Identification and molecular characterization of the cDNA encoding Cucumis melo allergen, Cuc m 3, a plant
Mojtaba Sankian1, Jafar Hajavi1, Malihe Moghadam1
1Immunology Research Center, Medical School, Mashhad University of Medical Sciences, Mashhad, Iran.
Background:
Melon (Cucumis melo) allergy is one of the most common food allergies, characterized by oral allergy syndrome. To date, two allergen molecules, Cuc m 1 and Cuc m 2, have been fully characterized in melon pulp, but there are few reports about the molecular characteristics of Cuc m 3.
Methods:
The Cuc m 3 cDNA has been characterized by rapid amplification of cDNA ends (RACE), which revealed a 456 base-pair (bp) fragment encoding a 151-amino acid polypeptide with a predicted molecular mass of 16.97 kDa, and identified 79 and 178 bp untranslated sequences at the 5' and 3´ ends, respectively.
Results:
In silico analysis showed strong similarities between Cuc m 3 and other plant pathogen-related protein 1s from cucumber, grape, bell pepper, and tomato.
Conclusion:
Here we report the identification and characterization of the Cuc m 3 cDNA, which will be utilized for further analyses of structural and allergenic features of this allergen.
