Structural Analysis of Porcine Reproductive and Respiratory Syndrome Virus Non-structural Protein 7α (NSP7α) and Identification of Its Interaction with NSP9

Non-structural protein 7 (NSP7), which can be further cleaved into NSP7α and NSP7β, is one of the most conserved proteins of porcine reproductive and respiratory syndrome virus (PRRSV). NSP7 plays a role in provoking the humoral immune system in PRRSV-infected swine, but its structure and function a...

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Main Authors: Jiaping Chen, Xiaodong Xu, Hu Tao, Yuan Li, Hao Nan, Yuanyuan Wang, Mengmeng Tian, Hongying Chen
Format: Article
Language:English
Published: Frontiers Media S.A. 2017-05-01
Series:Frontiers in Microbiology
Subjects:
Online Access:http://journal.frontiersin.org/article/10.3389/fmicb.2017.00853/full
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author Jiaping Chen
Xiaodong Xu
Hu Tao
Yuan Li
Hao Nan
Yuanyuan Wang
Mengmeng Tian
Hongying Chen
author_facet Jiaping Chen
Xiaodong Xu
Hu Tao
Yuan Li
Hao Nan
Yuanyuan Wang
Mengmeng Tian
Hongying Chen
author_sort Jiaping Chen
collection DOAJ
description Non-structural protein 7 (NSP7), which can be further cleaved into NSP7α and NSP7β, is one of the most conserved proteins of porcine reproductive and respiratory syndrome virus (PRRSV). NSP7 plays a role in provoking the humoral immune system in PRRSV-infected swine, but its structure and function are still not fully understood. Here, we analyzed the expression of NSP7, NSP7α, and NSP7β in PRRSV-infected MARC-145 cells. The solution structure of NSP7α was determined by using nuclear magnetic resonance (NMR). Although the structure provided little clue to its function, based on the structure of NSP7α, we predicted and further identified some key amino acids on NSP7α for the interaction of NSP7α with NSP9, the RNA dependent RNA polymerase of PRRSV. This study provided some new insights into the structure and function of PRRSV NSP7.
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spelling doaj.art-5905f2b1beaa409fa4c16cad2622e4c62022-12-22T01:37:21ZengFrontiers Media S.A.Frontiers in Microbiology1664-302X2017-05-01810.3389/fmicb.2017.00853266305Structural Analysis of Porcine Reproductive and Respiratory Syndrome Virus Non-structural Protein 7α (NSP7α) and Identification of Its Interaction with NSP9Jiaping Chen0Xiaodong Xu1Hu Tao2Yuan Li3Hao Nan4Yuanyuan Wang5Mengmeng Tian6Hongying Chen7College of Life Sciences, Northwest A&F UniversityYangling, ChinaCollege of Life Sciences, Northwest A&F UniversityYangling, ChinaCollege of Science, Northwest A&F UniversityYangling, ChinaCollege of Life Sciences, Northwest A&F UniversityYangling, ChinaCollege of Life Sciences, Northwest A&F UniversityYangling, ChinaCollege of Life Sciences, Northwest A&F UniversityYangling, ChinaCollege of Life Sciences, Northwest A&F UniversityYangling, ChinaCollege of Life Sciences, Northwest A&F UniversityYangling, ChinaNon-structural protein 7 (NSP7), which can be further cleaved into NSP7α and NSP7β, is one of the most conserved proteins of porcine reproductive and respiratory syndrome virus (PRRSV). NSP7 plays a role in provoking the humoral immune system in PRRSV-infected swine, but its structure and function are still not fully understood. Here, we analyzed the expression of NSP7, NSP7α, and NSP7β in PRRSV-infected MARC-145 cells. The solution structure of NSP7α was determined by using nuclear magnetic resonance (NMR). Although the structure provided little clue to its function, based on the structure of NSP7α, we predicted and further identified some key amino acids on NSP7α for the interaction of NSP7α with NSP9, the RNA dependent RNA polymerase of PRRSV. This study provided some new insights into the structure and function of PRRSV NSP7.http://journal.frontiersin.org/article/10.3389/fmicb.2017.00853/fullporcine reproductive and respiratory syndrome virusnon-structural protein 7αprotein structureNMRprotein–protein interaction
spellingShingle Jiaping Chen
Xiaodong Xu
Hu Tao
Yuan Li
Hao Nan
Yuanyuan Wang
Mengmeng Tian
Hongying Chen
Structural Analysis of Porcine Reproductive and Respiratory Syndrome Virus Non-structural Protein 7α (NSP7α) and Identification of Its Interaction with NSP9
Frontiers in Microbiology
porcine reproductive and respiratory syndrome virus
non-structural protein 7α
protein structure
NMR
protein–protein interaction
title Structural Analysis of Porcine Reproductive and Respiratory Syndrome Virus Non-structural Protein 7α (NSP7α) and Identification of Its Interaction with NSP9
title_full Structural Analysis of Porcine Reproductive and Respiratory Syndrome Virus Non-structural Protein 7α (NSP7α) and Identification of Its Interaction with NSP9
title_fullStr Structural Analysis of Porcine Reproductive and Respiratory Syndrome Virus Non-structural Protein 7α (NSP7α) and Identification of Its Interaction with NSP9
title_full_unstemmed Structural Analysis of Porcine Reproductive and Respiratory Syndrome Virus Non-structural Protein 7α (NSP7α) and Identification of Its Interaction with NSP9
title_short Structural Analysis of Porcine Reproductive and Respiratory Syndrome Virus Non-structural Protein 7α (NSP7α) and Identification of Its Interaction with NSP9
title_sort structural analysis of porcine reproductive and respiratory syndrome virus non structural protein 7α nsp7α and identification of its interaction with nsp9
topic porcine reproductive and respiratory syndrome virus
non-structural protein 7α
protein structure
NMR
protein–protein interaction
url http://journal.frontiersin.org/article/10.3389/fmicb.2017.00853/full
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