IRES: incorporated lactococcal bicistronic vector for target gene expression in a eukaryotic system

Plasmid DNAs isolated from lactic acid bacteria (LAB) such as Lactococcus lactis (L. lactis) has been gaining more interests for its positive prospects in genetic engineering-related applications. In this study, the lactococcal plasmid, pNZ8048 was modified so as to be able to express multiple genes...

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Autores Principales: Abdul Mutalib, Nur Elina, Mat Isa, Nurulfiza, Mohamed Alitheen, Noorjahan Banu, Song, Adelene Ai Lian, Abdul Rahim, Raha
Formato: Artículo
Publicado: Academic Press 2014
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spelling oai:psasir.upm.edu.my:34275 http://psasir.upm.edu.my/id/eprint/34275/ IRES: incorporated lactococcal bicistronic vector for target gene expression in a eukaryotic system Abdul Mutalib, Nur Elina Mat Isa, Nurulfiza Mohamed Alitheen, Noorjahan Banu Song, Adelene Ai Lian Abdul Rahim, Raha Plasmid DNAs isolated from lactic acid bacteria (LAB) such as Lactococcus lactis (L. lactis) has been gaining more interests for its positive prospects in genetic engineering-related applications. In this study, the lactococcal plasmid, pNZ8048 was modified so as to be able to express multiple genes in the eukaryotic system. Therefore, a cassette containing an internal ribosome entry site (IRES) was cloned between VP2 gene of a very virulent infectious bursal disease (vvIBDV) UPM 04190 of Malaysian local isolates and the reporter gene, green fluorescent protein (GFP) into pNZ:CA, a newly constructed derivative of pNZ8048 harboring the cytomegalovirus promoter (Pcmv) and polyadenylation signal. The new bicistronic vector, denoted as pNZ:vig was subjected to in vitro transcription/translation system followed by SDS–PAGE and Western blot analysis to rapidly verify its functionality. Immunoblotting profiles showed the presence of 49 and 29 kDa bands that corresponds to the sizes of the VP2 and GFP proteins respectively. This preliminary result shows that the newly constructed lactococcal bicistronic vector can co-express multiple genes in a eukaryotic system via the IRES element thus suggesting its feasibility to be used for transfection of in vitro cell cultures and vaccine delivery. Academic Press 2014-05 Article PeerReviewed Abdul Mutalib, Nur Elina and Mat Isa, Nurulfiza and Mohamed Alitheen, Noorjahan Banu and Song, Adelene Ai Lian and Abdul Rahim, Raha (2014) IRES: incorporated lactococcal bicistronic vector for target gene expression in a eukaryotic system. Plasmid, 73. pp. 26-33. ISSN 0147-619X; ESSN: 1095-9890 http://www.sciencedirect.com/science/article/pii/S0147619X1400016X 10.1016/j.plasmid.2014.04.003
institution UPM IR
collection UPM IR
description Plasmid DNAs isolated from lactic acid bacteria (LAB) such as Lactococcus lactis (L. lactis) has been gaining more interests for its positive prospects in genetic engineering-related applications. In this study, the lactococcal plasmid, pNZ8048 was modified so as to be able to express multiple genes in the eukaryotic system. Therefore, a cassette containing an internal ribosome entry site (IRES) was cloned between VP2 gene of a very virulent infectious bursal disease (vvIBDV) UPM 04190 of Malaysian local isolates and the reporter gene, green fluorescent protein (GFP) into pNZ:CA, a newly constructed derivative of pNZ8048 harboring the cytomegalovirus promoter (Pcmv) and polyadenylation signal. The new bicistronic vector, denoted as pNZ:vig was subjected to in vitro transcription/translation system followed by SDS–PAGE and Western blot analysis to rapidly verify its functionality. Immunoblotting profiles showed the presence of 49 and 29 kDa bands that corresponds to the sizes of the VP2 and GFP proteins respectively. This preliminary result shows that the newly constructed lactococcal bicistronic vector can co-express multiple genes in a eukaryotic system via the IRES element thus suggesting its feasibility to be used for transfection of in vitro cell cultures and vaccine delivery.
format Article
author Abdul Mutalib, Nur Elina
Mat Isa, Nurulfiza
Mohamed Alitheen, Noorjahan Banu
Song, Adelene Ai Lian
Abdul Rahim, Raha
spellingShingle Abdul Mutalib, Nur Elina
Mat Isa, Nurulfiza
Mohamed Alitheen, Noorjahan Banu
Song, Adelene Ai Lian
Abdul Rahim, Raha
IRES: incorporated lactococcal bicistronic vector for target gene expression in a eukaryotic system
author_facet Abdul Mutalib, Nur Elina
Mat Isa, Nurulfiza
Mohamed Alitheen, Noorjahan Banu
Song, Adelene Ai Lian
Abdul Rahim, Raha
author_sort Abdul Mutalib, Nur Elina
title IRES: incorporated lactococcal bicistronic vector for target gene expression in a eukaryotic system
title_short IRES: incorporated lactococcal bicistronic vector for target gene expression in a eukaryotic system
title_full IRES: incorporated lactococcal bicistronic vector for target gene expression in a eukaryotic system
title_fullStr IRES: incorporated lactococcal bicistronic vector for target gene expression in a eukaryotic system
title_full_unstemmed IRES: incorporated lactococcal bicistronic vector for target gene expression in a eukaryotic system
title_sort ires: incorporated lactococcal bicistronic vector for target gene expression in a eukaryotic system
publisher Academic Press
publishDate 2014
_version_ 1819295671881039872
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