Expression, purification and identification of Pla a1 in a codon-optimized Platanus pollen allergen

Liu,Yun; Sun,Xiuzhen; Wang,Guizuo; Tao,Ailin; Wu,Yuanyuan; Li,Manxiang; Shi,Hongyang; Xie,Mei

doi:10.3892/mmr.2015.3652

August-2015 Volume 12 Issue 2

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August-2015 Volume 12 Issue 2

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Article

Expression, purification and identification of Pla a1 in a codon-optimized Platanus pollen allergen

Authors:
- Yun Liu
- Xiuzhen Sun
- Guizuo Wang
- Ailin Tao
- Yuanyuan Wu
- Manxiang Li
- Hongyang Shi
- Mei Xie
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Affiliations: Department of Respiratory Medicine, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shanxi 710004, P.R. China, National Key Laboratory of Respiratory Diseases, Allergy Research Center, Key Laboratory of Allergic Reactions and Clinical Immunology, The Second Affiliated Hospital of Guangzhou Medical College, Guangzhou, Guangdong 510260, P.R. China
Pages: 2197-2202
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Published online on: April 21, 2015

https://doi.org/10.3892/mmr.2015.3652
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Abstract

The present study aimed to express, purify and identify the major allergen gene, Pla a1, in Platanus pollen. According to previous studies, the major gene sequences of the Pla a1 allergen were obtained and codon optimization and synthesis of the genome were performed using DNAStar software. Following binding of the target gene fragment and the pET‑44a vector, the JM109 cells were transfected to produce positive clones. The vectors were then transformed into Escherichia coli Rosetta cells to induce the expression of the target protein. The exogenous protein was purified using affinity chromatography and was identified by western blot analysis. Pla a1, the major allergen protein in Platanus pollen, was successfully isolated and this exogenous protein was purified using affinity chromatography. The present study was the first, to the best of our knowledge, to obtain expression of the allergen recombinant protein, Pla a1, fused with a Strep‑TagII via codon optimization and provided the basis for the preparation of allergens with high purity, recombinant hypoallergenic allergens and allergen nucleic acid vaccines.

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Journals

International Journal of Molecular Medicine

International Journal of Oncology

Molecular Medicine Reports

Oncology Reports

Experimental and Therapeutic Medicine

Oncology Letters

Biomedical Reports

Molecular and Clinical Oncology

World Academy of Sciences Journal

International Journal of Functional Nutrition

International Journal of Epigenetics

Medicine International

Expression, purification and identification of Pla a1 in a codon-optimized Platanus pollen allergen

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