Home Acta Virologica 2015 Acta Virologica Vol.59, No.4, p.423-428, 2015

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Founded: 1957
ISSN 0001-723X
E-ISSN 1336-2305

Published in English

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Acta Virologica Vol.59, No.4, p.423-428, 2015

Title: Characterization of the nuclear localization signals of duck circovirus replication proteins
Author: X. WANG, Z. WU, Q. XIANG, Z. LI, R. ZHANG, J. CHEN, L. XIA, S. LIN, W. YU, Z. MA, Z. XIE, S. JIANG

Abstract: Duck circovirus (DuCV) possess a circular, single-stranded DNA genome that requires the replication protein (Rep) for its replication. Based on the viral genotype, there are two categories of Rep proteins: Rep1 and Rep2. To characterize the nuclear localization signals (NLSs) conferring the nuclear localization of the Rep proteins, defined coding regions of the rep gene of two genotypes of DuCV were cloned and co-expressed with the red fluorescent protein DsRed2. The results showed that deleting the putative N-terminal NLS located at amino acid residues 10–37 of Rep1 and Rep2 abrogated nuclear translocation, while deleting the putative C-terminal NLS located at residues 244–274 of Rep1 did not significantly alter its subcellular localization, confirming that only the NLS located at residues 10–37 in the N-termini of the Rep proteins had nuclear targeting activity.

Keywords: duck circovirus; genotype; Rep protein; nuclear localization signal
Published online: 06-Dec-2015
Year: 2015, Volume: 59, Issue: 4 Page From: 423, Page To: 428

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