PMID- 31356943 OWN - NLM STAT- MEDLINE DCOM- 20200406 LR - 20200408 IS - 1879-0003 (Electronic) IS - 0141-8130 (Linking) VI - 139 DP - 2019 Oct 15 TI - Identification of a linear B-cell epitope on glycoprotein (GP) 2a of porcine reproductive and respiratory syndrome virus (PRRSV). PG - 1288-1294 LID - S0141-8130(19)33843-7 [pii] LID - 10.1016/j.ijbiomac.2019.07.171 [doi] AB - Glycoprotein (GP) 2a was a minor structural protein of porcine reproductive and respiratory syndrome virus (PRRSV) and was one of crucial proteins for PRRSV to bind cell receptor, which indicated that there were neutralizing epitopes on GP2a. In the present work, we used mouse anti-GP2a(41-208aa) serum and one GP2a(41-208aa) specific monoclonal antibody (McAb) to identify B-cell epitopes of GP2a by peptide-based ELISA. A liner B-cell epitope F(194)PTPGSRPKLHDFQQ(208) was identified. However, the results of virus neutralization experiment showed that the McAb could not reduce the titers of PRRSV, which indicated that the identified epitope was not the neutralizing epitope of PRRSV. While the amino acid sequence of this epitope was conserved in North American (type 2) PRRSV, which suggested that this epitope might be diagnostic potential for type 2 PRRSV strains. In conclusion, our present work identified a new epitope on GP2a and this epitope might be diagnostic potential for type 2 PRRSV strains. CI - Copyright (c) 2019. Published by Elsevier B.V. FAU - Shi, Xibao AU - Shi X AD - College of Life Sciences, Henan Normal University, Xinxiang, Henan 453007, China. FAU - Fan, Xiaomin AU - Fan X AD - College of Life Sciences, Henan Normal University, Xinxiang, Henan 453007, China. FAU - Nie, Shouyi AU - Nie S AD - Department of Bioengineering, Zhengzhou University, Zhengzhou, Henan 450000, China. FAU - Kou, Liyun AU - Kou L AD - Department of Bioengineering, Zhengzhou University, Zhengzhou, Henan 450000, China. FAU - Zhang, Xiaozhuan AU - Zhang X AD - College of Life Sciences, Henan Normal University, Xinxiang, Henan 453007, China. FAU - Liu, Hongliang AU - Liu H AD - Department of Bioengineering, Zhengzhou University, Zhengzhou, Henan 450000, China. FAU - Ji, Shengdong AU - Ji S AD - College of Life Sciences, Henan Normal University, Xinxiang, Henan 453007, China. FAU - Deng, Ruiguang AU - Deng R AD - Henan Provincial Key Laboratory of Animal Immunology, Henan Academy of Agricultural Sciences, Zhengzhou 450002, China. FAU - Wang, Aiping AU - Wang A AD - Department of Bioengineering, Zhengzhou University, Zhengzhou, Henan 450000, China. Electronic address: pingaw@126.com. FAU - Zhang, Gaiping AU - Zhang G AD - Department of Bioengineering, Zhengzhou University, Zhengzhou, Henan 450000, China; College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, Henan 450002, China; Henan Provincial Key Laboratory of Animal Immunology, Henan Academy of Agricultural Sciences, Zhengzhou 450002, China. Electronic address: zhanggaiping2003@163.com. LA - eng PT - Journal Article DEP - 20190726 PL - Netherlands TA - Int J Biol Macromol JT - International journal of biological macromolecules JID - 7909578 RN - 0 (Antibodies, Monoclonal) RN - 0 (Epitopes, B-Lymphocyte) RN - 0 (Viral Envelope Proteins) SB - IM MH - Amino Acid Sequence MH - Animals MH - Antibodies, Monoclonal/immunology MH - Conserved Sequence MH - Epitope Mapping MH - Epitopes, B-Lymphocyte/*immunology MH - Mice MH - *Porcine respiratory and reproductive syndrome virus MH - Sequence Alignment MH - Viral Envelope Proteins/chemistry/*immunology OTO - NOTNLM OT - Epitope OT - GP2a OT - PRRSV EDAT- 2019/07/30 06:00 MHDA- 2020/04/09 06:00 CRDT- 2019/07/30 06:00 PHST- 2019/05/23 00:00 [received] PHST- 2019/07/12 00:00 [revised] PHST- 2019/07/25 00:00 [accepted] PHST- 2019/07/30 06:00 [pubmed] PHST- 2020/04/09 06:00 [medline] PHST- 2019/07/30 06:00 [entrez] AID - S0141-8130(19)33843-7 [pii] AID - 10.1016/j.ijbiomac.2019.07.171 [doi] PST - ppublish SO - Int J Biol Macromol. 2019 Oct 15;139:1288-1294. doi: 10.1016/j.ijbiomac.2019.07.171. Epub 2019 Jul 26.