TY - JOUR
T1 - Detection and sequencing of defective viral genomes in C6/36 cells persistently infected with dengue virus 2
AU - Juárez-Martínez, Ariadna Berenice
AU - Vega-Almeida, Tania Olivia
AU - Salas-Benito, Mariana
AU - García-Espitia, Matilde
AU - De Nova-Ocampo, Mónica
AU - del Ángel, Rosa María
AU - Salas-Benito, Juan Santiago
N1 - Funding Information:
We thank Dr. R. Padmanaban (Georgetown University, Washington, USA) for the anti-NS5 antibodies; Alejandro Monsalvo Reyes (FES Iztacala-UNAM), Dr. Laura Ongay, and B. Sc. Guadalupe Codiz (Instituto de Fisiología Celular-UNAM) for the DNA sequencing; and Dr. José Tapia and Nicolás Villegas (CINVESTAV-IPN) for their assistance in the northern blot hybridization. This project was supported by the Secretaría de Investigación y Posgrado of Instituto Politécnico Nacional (SIP 20010787, 20080104, 20090158, and 20100041) and Consejo Nacional de Ciencia y Tecnología (CONACYT) (Projects I39304-N and P160883). Ariadna Berenice Juárez received a scholarship from the Consejo Nacional de Ciencia y Tecnología (CONACYT) and PIFI (IPN). Tania Olivia Vega-Almeida received a scholarship from the Instituto Politécnico Nacional and Instituto de Ciencia y Tecnología D.F. Dr. Juan Salas and Mónica De Nova have fellowships from the COFAA and EDI (IPN).
PY - 2013/3
Y1 - 2013/3
N2 - Dengue virus is the most important arbovirus that affects humans, and it can establish persistent infections, especially in insect-derived cell cultures. Defective viral genomes have been implicated in the establishment and maintenance of persistent infections with several flaviviruses; however, there exists almost no information concerning defective dengue virus genomes. Here, we report the detection of defective dengue 2 virus genomes in persistently infected mosquito C6/36 cells. The defective viral genomes were detected at a low ratio compared with the wild-type genome. Deletions of approximately 147 residues (222-368) were found in the E protein, and these mainly affected domain III (73 %) of the protein; deletions of approximately 153 residues (4-156) and 228 residues (597-825) were found in the methyltransferase and polymerase domains, respectively, of the NS5 protein. The truncated versions of NS5 could be detected by western blot only in the protein extracts derived from persistently infected cells.
AB - Dengue virus is the most important arbovirus that affects humans, and it can establish persistent infections, especially in insect-derived cell cultures. Defective viral genomes have been implicated in the establishment and maintenance of persistent infections with several flaviviruses; however, there exists almost no information concerning defective dengue virus genomes. Here, we report the detection of defective dengue 2 virus genomes in persistently infected mosquito C6/36 cells. The defective viral genomes were detected at a low ratio compared with the wild-type genome. Deletions of approximately 147 residues (222-368) were found in the E protein, and these mainly affected domain III (73 %) of the protein; deletions of approximately 153 residues (4-156) and 228 residues (597-825) were found in the methyltransferase and polymerase domains, respectively, of the NS5 protein. The truncated versions of NS5 could be detected by western blot only in the protein extracts derived from persistently infected cells.
UR - http://www.scopus.com/inward/record.url?scp=84874656141&partnerID=8YFLogxK
U2 - 10.1007/s00705-012-1525-2
DO - 10.1007/s00705-012-1525-2
M3 - Artículo
C2 - 23129130
SN - 0304-8608
VL - 158
SP - 583
EP - 599
JO - Archives of Virology
JF - Archives of Virology
IS - 3
ER -