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Wang L, Xiong Q, Saelim N, Wang L, Nong W, Wan ATY, Shi M, Liu X, Cao Q, Hui JHL, Sookrung N, Leung TF, Tungtrongchitr A, Tsui SKW. Genome assembly and annotation of Periplaneta americana reveal a comprehensive cockroach allergen profile. Allergy 2022; 78:1088-1103. [PMID: 36153808 DOI: 10.1111/all.15531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2021] [Revised: 07/30/2022] [Accepted: 08/22/2022] [Indexed: 11/30/2022]
Abstract
BACKGROUND One of the most common cockroach types in urban areas, the American cockroach (Periplaneta americana) has been reported to impose an increased risk of allergies and asthma. Limited groups of allergens (Per a 1-13) have been identified in this species due to the lack of genome-related information. METHODS To expand the allergen profile of P. americana, genomic, transcriptomic, and proteomic approaches were applied. With the support of a high-quality genome assembled using nanopore, Illumina, and Hi-C sequencing techniques, potential allergens were identified based on protein homology. Then, using enzyme-linked immunosorbent assay, selected allergens were tested in Thai patients allergic to P. americana. RESULTS A chromosomal-level genome of P. americana (3.06 Gb) has been assembled with 94.6% BUSCO completeness, and its contiguity has been significantly improved (N50 = 151 Mb). A comprehensive allergen profile has been characterized, with seven novel groups of allergens, including enolase (Per a 14), cytochrome C (Per a 15), cofilin (Per a 16), alpha-tubulin (Per a 17), cyclophilin (Per a 18), porin3 (Per a 19), and peroxiredoxin-6 (Per a 20), showing IgE-sensitivity in enzyme-linked immunosorbent assay. A new isoallergen of tropomyosin (Per a 7.02) and multiple potential isoallergens of Per a 5 were revealed using bioinformatics and proteomic approaches. Additionally, comparative analysis of P. americana with the closely related Blattodea species revealed the possibility of cross-reaction. CONCLUSION The high-quality genome and proteome of P. americana are beneficial in studying cockroach allergens at the molecular level. Seven novel allergen groups and one isoallergen in Per a 7 were identified.
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Affiliation(s)
- Lingyi Wang
- School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong.,Hong Kong Bioinformatics Centre, The Chinese University of Hong Kong, Hong Kong
| | - Qing Xiong
- School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong.,Hong Kong Bioinformatics Centre, The Chinese University of Hong Kong, Hong Kong
| | - Nawannaporn Saelim
- Biodesign Innovation Center, Department of Parasitology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Lin Wang
- School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong
| | - Wenyan Nong
- School of Life Sciences, Simon F.S. Li Marine Science Laboratory, State Key Laboratory of Agrobiotechnology, The Chinese University of Hong Kong, Hong Kong
| | - Angel Tsz-Yau Wan
- School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong.,Hong Kong Bioinformatics Centre, The Chinese University of Hong Kong, Hong Kong
| | - Mai Shi
- School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong.,Hong Kong Bioinformatics Centre, The Chinese University of Hong Kong, Hong Kong
| | - Xiaoyu Liu
- Shenzhen Key Laboratory of Allergy and Immunology, School of Medicine, Shenzhen University, China
| | - Qin Cao
- School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong
| | - Jerome Ho Lam Hui
- School of Life Sciences, Simon F.S. Li Marine Science Laboratory, State Key Laboratory of Agrobiotechnology, The Chinese University of Hong Kong, Hong Kong
| | - Nitat Sookrung
- Biodesign Innovation Center, Department of Parasitology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand.,Biomedical Research Incubator Unit, Department of Research, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Ting-Fan Leung
- Department of Pediatrics, The Chinese University of Hong Kong, Hong Kong.,Hong Kong Hub of Paediatric Excellence, The Chinese University of Hong Kong, Hong Kong
| | - Anchalee Tungtrongchitr
- Biodesign Innovation Center, Department of Parasitology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand.,Department of Parasitology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Stephen Kwok Wing Tsui
- School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong.,Hong Kong Bioinformatics Centre, The Chinese University of Hong Kong, Hong Kong.,Centre for Microbial Genomics and Proteomics, The Chinese University of Hong Kong, Hong Kong
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Yang Y, Zhang YX, Liu M, Maleki SJ, Zhang ML, Liu QM, Cao MJ, Su WJ, Liu GM. Triosephosphate Isomerase and Filamin C Share Common Epitopes as Novel Allergens of Procambarus clarkii. J Agric Food Chem 2017; 65:950-963. [PMID: 28072528 DOI: 10.1021/acs.jafc.6b04587] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Triosephosphate isomerase (TIM) is a key enzyme in glycolysis and has been identified as an allergen in saltwater products. In this study, TIM with a molecular mass of 28 kDa was purified from the freshwater crayfish (Procambarus clarkii) muscle. A 90-kDa protein that showed IgG/IgE cross-reactivity with TIM was purified and identified as filamin C (FLN c), which is an actin-binding protein. TIM showed similar thermal and pH stability with better digestion resistance compared with FLN c. The result of the surface plasmon resonance (SPR) experiment demonstrated the infinity of anti-TIM polyclonal antibody (pAb) to both TIM and FLN c. Five linear and 3 conformational epitopes of TIM, as well as 9 linear and 10 conformational epitopes of FLN c, were mapped by phage display. Epitopes of TIM and FLN c demonstrated the sharing of certain residues; the occurrence of common epitopes in the two allergens accounts for their cross-reactivity.
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Affiliation(s)
- Yang Yang
- College of Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Fujian Collaborative Innovation Center for Exploitation and Utilization of Marine Biological Resources, Jimei University , Xiamen, Fujian 361021, China
| | - Yong-Xia Zhang
- College of Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Fujian Collaborative Innovation Center for Exploitation and Utilization of Marine Biological Resources, Jimei University , Xiamen, Fujian 361021, China
| | - Meng Liu
- College of Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Fujian Collaborative Innovation Center for Exploitation and Utilization of Marine Biological Resources, Jimei University , Xiamen, Fujian 361021, China
| | - Soheila J Maleki
- Agricultural Research Service, Southern Regional Research Center, U. S. Department of Agriculture , New Orleans, Louisiana 70124, United States
| | - Ming-Li Zhang
- Xiamen Second Hospital , Xiamen, Fujian 361021, China
| | - Qing-Mei Liu
- College of Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Fujian Collaborative Innovation Center for Exploitation and Utilization of Marine Biological Resources, Jimei University , Xiamen, Fujian 361021, China
| | - Min-Jie Cao
- College of Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Fujian Collaborative Innovation Center for Exploitation and Utilization of Marine Biological Resources, Jimei University , Xiamen, Fujian 361021, China
| | - Wen-Jin Su
- College of Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Fujian Collaborative Innovation Center for Exploitation and Utilization of Marine Biological Resources, Jimei University , Xiamen, Fujian 361021, China
| | - Guang-Ming Liu
- College of Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Fujian Collaborative Innovation Center for Exploitation and Utilization of Marine Biological Resources, Jimei University , Xiamen, Fujian 361021, China
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