Bioinformatical analysis of nuclear localisation sequences in penaeid densoviruses

Owens, Leigh (2013) Bioinformatical analysis of nuclear localisation sequences in penaeid densoviruses. Marine Genomics, 12. pp. 9-15.

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Nuclear location sequences (NLSs) link proteins to importation molecules for transportation into the nucleus. A bioinformatical search of the penaeid parvoviruses was undertaken to look for NLS. All three ORFs of Penaeus merguiensis densovirus (PmergDNV) have functional NLS whilst only the two non-structural proteins of Penaeus stylirostris densovirus (PstDNV) appear to. In PmergDNV, NS1 has a NLS similar to DNA helicase Q1, NS2 is similar to Dorsal and VP1 is similar to SV40 T-antigen signal. In PstDNV, NS2 has a NLS that is an unrecognised pattern unless it is a monopartite Chelsky signal whilst NS1 has both a Dorsal and minute virus of mouse signals. The capsid protein NLS of PstDNV is likely to be inefficient. Spawner isolated mortality virus has a NLS like DNA helicase Q1. These NLSs affect the nature of inclusion bodies seen with light microscopy, basophilic in PmergDNV; eosinophilic in PstDNV and the site of encapsidation, nuclear in PmergDNV; cytoplasmic in PstDNV as seen with TEM. Many possible NLSs in penaeid parvoviruses are homologues to those in eukaryotic organisms and need to be tested experimentally.

Item ID: 32502
Item Type: Article (Research - C1)
ISSN: 1874-7787
Keywords: nuclear location sequence, densovirus, PmergDNV, HPV, PstDNV IHHNV
Funders: Indo-Australian Biotechnology Fund
Date Deposited: 07 Apr 2014 23:34
FoR Codes: 06 BIOLOGICAL SCIENCES > 0605 Microbiology > 060506 Virology @ 50%
07 AGRICULTURAL AND VETERINARY SCIENCES > 0704 Fisheries Sciences > 070404 Fish Pests and Diseases @ 50%
SEO Codes: 83 ANIMAL PRODUCTION AND ANIMAL PRIMARY PRODUCTS > 8301 Fisheries - Aquaculture > 830101 Aquaculture Crustaceans (excl. Rock Lobster and Prawns) @ 100%
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