alexa Correct L1 Initiation Codon Generates Immunologically Reactive Virus-like Particles Of A Novel Laboratory Mouse Papillomavirus (MusPV)
ISSN: 2157-7560

Journal of Vaccines & Vaccination
Open Access

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3rd International Conference on Vaccines & Vaccination
July 29-31, 2013 Embassy Suites Las Vegas, NV, USA

A. Bennett Jenson, Joongho Joh and Shin-je Ghim
ScientificTracks Abstracts: J Vaccines Vaccin
DOI: 10.4172/2157-7560.S1.016
Abstract
C orrectly assembled virus-like particles (VLPs) of papillomavirus (PV) display conformationally-dependent epitopes that are type-specific, maintained on authenic virions and induce neutralizing antibodies. Alignment of the L1 amino acid (aa) sequences of 84 PVs revealed that the lengths of their N-termini are diverse and multiple possible initiation methionine (met) codons exist. The L1 gene of MusPV, that naturally infects immunodeficient laboratory mouse strain (NMRI-Foxn1nu/Foxn1nu), has 4 met codons at 1 st , 2 nd , 28 th and 30 th aa from its N-terminus. Of these, the 3 rd and 4 th mets, that are at 28 th and 30 th aa position from the N-termius, respectively, are located at the position where most PVs have their start codon. These two mets, located 9 th and 11 th from the YLPP conserved aas of most PVs, should be considered as consensus initiation codons of PV L1s. Three L1 proteins of MusPV starting from 2 nd , 3 rd and 4 th mets expressed using baculovirus expression system were characterized for their ability to self-assemble into VLPs. While MusPV L1 proteins starting from 2 nd met expressed a L1 protein that rarely folded into VLPs, the L1s starting from 3 rd and 4 th mets generated correct VLPs in abundant quantities. We now conclude that the highest quantity and best quality VLPs are made from the consensus L1 met of all known PVs.
Biography
A. Bennett Jenson is a Board-Certified human pathologist with expertise in animal models of human disease (Distinguished Professor Lectureship 11 th Annual Pathology of Mouse Models of Human Disease, September 2012). He has worked with murine leukemia virus infection of NZB/NZW mice as a model for lupus erythematosus (Scripps Clinic and Research Foundation, CA), murine animal models for virus-induced diabetes mellitus (National Institutes of Health), and animal models for human papillomavirus induced cervical, anogenital other than cervical, and head and neck cancers at Georgetown University Medical Center (Washington DC) and University of Louisville Health Science Center (Louisville, Ky). Presently he is a Professor of Vaccinology at James Graham Cancer Center, where he is working on recombinant tobacco plant papillomavirus vaccines. He has published over 160 peer-reviewed articles, and 40 chapters and books
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