Unravelling Over-Represented Amino Acids in Protein Structure of Allergen Proteins; A Large-Scale Study

Document Type : Research Articles

Authors

• Nassim Rahmani ¹
• Esmaeil Ebrahimie ¹
• Ali Niazi ¹
• Najaf Allahyari Fard ²
• Bijan Bambai ²
• Zarrin Minuchehr ²
• Mansour Ebrahimi ³

¹ Shiraz University

² National Institute of Genetic Engineering and Biotechnology (NIGEB)

³ University of Qom

https://doi.org/10.22067/jcmr.v0i0.60190

Abstract

Allergens are proteins or glycoproteins which make widespread disorders that can lead to a systemic anaphylactic shock and even death within a short period of time. Understanding the protein features that are involved in allergenicity is important in developing future treatments as well as engineering proteins in genetic transformation projects. A big dataset of 1439 protein features from 761 plant allergens and 7815 non-allergen proteins was constructed. Thereafter, 10 different attribute weighting algorithms were utilized to find the key characteristics differentiating allergens and non-allergen proteins. The frequency of Leu, Arg and Gln selected by different attribute weighting algorithms with more than 50% confidence, including attribute weighting by Weight_Info Gain, Weight Chi Squared, Weight_Gini Index and Weight_Relief. High amount of Gln and low percentage of Leu and Arg discriminate plant allergens from non-allergens

Keywords

• Plant allergens
• Attribute weighting algorithms
• Amino acid

20.1001.1.20089147.2016.8.2.5.5

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