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Shrivastava G, García-Cordero J, León-Juárez M, Oza G, Tapia-Ramírez J, Villegas-Sepulveda N, Cedillo-Barrón L. NS2A comprises a putative viroporin of Dengue virus 2. Virulence 2017; 8:1450-1456. [PMID: 28723277 PMCID: PMC5711424 DOI: 10.1080/21505594.2017.1356540] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Revised: 06/30/2017] [Accepted: 06/30/2017] [Indexed: 12/31/2022] Open
Affiliation(s)
- Gaurav Shrivastava
- Department of Molecular Biomedicine, Center for Research and Advanced Studies (CINVESTAV-IPN), México City, México
| | - Julio García-Cordero
- Department of Molecular Biomedicine, Center for Research and Advanced Studies (CINVESTAV-IPN), México City, México
| | - Moisés León-Juárez
- Department of Immunobiochemistry, National Institute of Perinatology, México City, México
| | - Goldie Oza
- Department of Genetics and Molecular Biology, Center for Research and Advanced Studies (CINVESTAV-IPN), México City, México
| | - Jose Tapia-Ramírez
- Department of Genetics and Molecular Biology, Center for Research and Advanced Studies (CINVESTAV-IPN), México City, México
| | - Nicolas Villegas-Sepulveda
- Department of Molecular Biomedicine, Center for Research and Advanced Studies (CINVESTAV-IPN), México City, México
| | - Leticia Cedillo-Barrón
- Department of Molecular Biomedicine, Center for Research and Advanced Studies (CINVESTAV-IPN), México City, México
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Yuan Y, Fan D, Zhu S, Yang J, Chen J. Identification and characterization of host cell proteins interacting with Scylla serrata reovirus non-structural protein p35. Virus Genes 2016; 53:317-322. [PMID: 27943061 DOI: 10.1007/s11262-016-1418-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2016] [Accepted: 12/02/2016] [Indexed: 12/01/2022]
Abstract
We have previously shown that non-structural protein p35, encoded by Scylla serrata reovirus (SsRV) S10, may act as a viroporin. To characterize the role of p35 protein in the modulation of cellular function, a yeast two-hybrid system was used to screen a cDNA library derived from S. serrata to find its interacting partner. Protein interactions were confirmed in vitro by GST pull-down. Full cDNAs of p35 interactors were cloned by the rapid amplification of cDNA ends. After two-hybrid library screening, we isolated partial cDNAs encoding hemocyanin, cryptocyanin, and TAX1BP1. Interaction of p35 with each of hemocyanin, cryptocyanin, and TAX1BP1 was confirmed by GST pull-down. The full-length cDNA fragments of hemocyanin, cryptocyanin, and TAX1BP1 were 2287, 2422, and 3437 bp, respectively, and they encoded three putative proteins with molecular masses of ~76.9, ~79.2, and ~107.2 kDa, respectively. This study casts new light on the function and physiological significance of p35 during the SsRV replication cycle.
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Affiliation(s)
- Yangyang Yuan
- College of Biological and Environmental Sciences, Zhejiang Wanli University, No.8, South Qianhu Road, Ningbo, Zhejiang Province, 315100, People's Republic of China
| | - Dongyang Fan
- College of Biological and Environmental Sciences, Zhejiang Wanli University, No.8, South Qianhu Road, Ningbo, Zhejiang Province, 315100, People's Republic of China
| | - Sidong Zhu
- College of Biological and Environmental Sciences, Zhejiang Wanli University, No.8, South Qianhu Road, Ningbo, Zhejiang Province, 315100, People's Republic of China
| | - Jifang Yang
- College of Biological and Environmental Sciences, Zhejiang Wanli University, No.8, South Qianhu Road, Ningbo, Zhejiang Province, 315100, People's Republic of China
| | - Jigang Chen
- College of Biological and Environmental Sciences, Zhejiang Wanli University, No.8, South Qianhu Road, Ningbo, Zhejiang Province, 315100, People's Republic of China.
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Yuan Y, Fan D, Zhang Z, Yang J, Liu J, Chen J. Identification and RNA segment assignment of six structural proteins of Scylla serrata reovirus. Virus Genes 2016; 52:556-60. [PMID: 27023722 DOI: 10.1007/s11262-016-1319-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2016] [Accepted: 03/11/2016] [Indexed: 10/22/2022]
Abstract
Scylla serrata reovirus (SsRV) is one of the most prevalent viral pathogens of the mud crab (S. serrata). The virus represents an unassigned novel genus in the Reoviridae family, and contains 12 double-stranded RNA genomic segments. Previous analysis of virion proteins concluded that SsRV contains at least eight structural proteins, ranging from 25 to 160 kDa. Here, tandem time-of-flight mass spectrometry and Western blotting were used to re-identify the structural proteins. The results indicate that proteins encoded by SsRV segments S1, S3, S6, S9, S11, and S12 are structural proteins.
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Affiliation(s)
- Yangyang Yuan
- College of Fisheries and Life Sciences, Shanghai Ocean University, Shanghai, People's Republic of China.,College of Biological and Environmental Sciences, Zhejiang Wanli University, No. 8, South Qianhu Road, Ningbo, 315100, Zhejiang Province, People's Republic of China
| | - Dongyang Fan
- College of Biological and Environmental Sciences, Zhejiang Wanli University, No. 8, South Qianhu Road, Ningbo, 315100, Zhejiang Province, People's Republic of China
| | - Zhao Zhang
- College of Biological and Environmental Sciences, Zhejiang Wanli University, No. 8, South Qianhu Road, Ningbo, 315100, Zhejiang Province, People's Republic of China
| | - Jifang Yang
- College of Biological and Environmental Sciences, Zhejiang Wanli University, No. 8, South Qianhu Road, Ningbo, 315100, Zhejiang Province, People's Republic of China
| | - Jingwen Liu
- Bioengineering College of Jimei University, Xiamen, People's Republic of China
| | - Jigang Chen
- College of Biological and Environmental Sciences, Zhejiang Wanli University, No. 8, South Qianhu Road, Ningbo, 315100, Zhejiang Province, People's Republic of China.
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León-Juárez M, Martínez-Castillo M, Shrivastava G, García-Cordero J, Villegas-Sepulveda N, Mondragón-Castelán M, Mondragón-Flores R, Cedillo-Barrón L. Recombinant Dengue virus protein NS2B alters membrane permeability in different membrane models. Virol J 2016; 13:1. [PMID: 26728778 PMCID: PMC4700614 DOI: 10.1186/s12985-015-0456-4] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2015] [Accepted: 12/21/2015] [Indexed: 11/18/2022] Open
Abstract
Background One of the main phenomena occurring in cellular membranes during virus infection is a change in membrane permeability. It has been observed that numerous viral proteins can oligomerize and form structures known as viroporins that alter the permeability of membranes. Previous findings have identified such proteins in cells infected with Japanese encephalitis virus (JEV), a member of the same family that Dengue virus (DENV) belongs to (Flaviviridae). In the present work, we investigated whether the small hydrophobic DENV protein NS2B serves a viroporin function. Methods We cloned the DENV NS2B sequence and expressed it in a bacterial expression system. Subsequently, we evaluated the effect of DENV NS2B on membranes when NS2B was overexpressed, measured bacterial growth restriction, and evaluated changes of permeability to hygromycin. The NS2B protein was purified by affinity chromatography, and crosslinking assays were performed to determine the presence of oligomers. Hemolysis assays and transmission electron microscopy were performed to identify structures involved in permeability changes. Results The DENV-2 NS2B protein showed similitude with the JEV viroporin. The DENV-2 NS2B protein possessed the ability to change the membrane permeability in bacteria, to restrict bacterial cell growth, and to enable membrane permeability to hygromycin B. The NS2B protein formed trimers that could participate in cell lysis and generate organized structures on eukaryotes membranes. Conclusions Our data suggest that the DENV-2 NS2B viral protein is capable of oligomerizing and organizing to form pore-like structures in different lipid environments, thereby modifying the permeability of cell membranes.
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Affiliation(s)
- Moisés León-Juárez
- Departmento de Biomedicina Molecular, Centro de Investigacion y Estudios avanzados IPN, Av. Instituto Politecnico 2508 Col. San Pedro Zacatenco, 07360, México, Mexico. .,Present Address: Departamento de Inmunobioquimica, Instituto Nacional de Perinatología, Montes Urales #800 Col. Lomas de Virreyes, 1100, México, Mexico.
| | - Macario Martínez-Castillo
- Departmento de Biomedicina Molecular, Centro de Investigacion y Estudios avanzados IPN, Av. Instituto Politecnico 2508 Col. San Pedro Zacatenco, 07360, México, Mexico.
| | - Gaurav Shrivastava
- Departmento de Biomedicina Molecular, Centro de Investigacion y Estudios avanzados IPN, Av. Instituto Politecnico 2508 Col. San Pedro Zacatenco, 07360, México, Mexico.
| | - Julio García-Cordero
- Departmento de Biomedicina Molecular, Centro de Investigacion y Estudios avanzados IPN, Av. Instituto Politecnico 2508 Col. San Pedro Zacatenco, 07360, México, Mexico.
| | - Nicolás Villegas-Sepulveda
- Departmento de Biomedicina Molecular, Centro de Investigacion y Estudios avanzados IPN, Av. Instituto Politecnico 2508 Col. San Pedro Zacatenco, 07360, México, Mexico.
| | - Mónica Mondragón-Castelán
- Departamento de Bioquímica, CINVESTAV IPN Av, IPN # 2508 Col. San Pedro Zacatenco, 07360, México, DF, Mexico.
| | - Ricardo Mondragón-Flores
- Departamento de Bioquímica, CINVESTAV IPN Av, IPN # 2508 Col. San Pedro Zacatenco, 07360, México, DF, Mexico.
| | - Leticia Cedillo-Barrón
- Departmento de Biomedicina Molecular, Centro de Investigacion y Estudios avanzados IPN, Av. Instituto Politecnico 2508 Col. San Pedro Zacatenco, 07360, México, Mexico.
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