Abstract:
:There is an urgent need to provide effective anti-HIV microbicides to resource-poor areas worldwide. Some of the most promising microbicide candidates are biotherapeutics targeting viral entry. To provide biotherapeutics to poorer areas, it is vital to reduce the cost. Here, we report the production of biologically active recombinant cyanovirin-N (rCV-N), an antiviral protein, in genetically engineered soya bean seeds. Pure, biologically active rCV-N was isolated with a yield of 350 μg/g of dry seed weight. The observed amino acid sequence of rCV-N matched the expected sequence of native CV-N, as did the mass of rCV-N (11 009 Da). Purified rCV-N from soya is active in anti-HIV assays with an EC50 of 0.82-2.7 nM (compared to 0.45-1.8 nM for E. coli-produced CV-N). Standard industrial processing of soya bean seeds to harvest soya bean oil does not diminish the antiviral activity of recovered rCV-N, allowing the use of industrial soya bean processing to generate both soya bean oil and a recombinant protein for anti-HIV microbicide development.
journal_name
Plant Biotechnol Jjournal_title
Plant biotechnology journalauthors
O'Keefe BR,Murad AM,Vianna GR,Ramessar K,Saucedo CJ,Wilson J,Buckheit KW,da Cunha NB,Araújo AC,Lacorte CC,Madeira L,McMahon JB,Rech ELdoi
10.1111/pbi.12309subject
Has Abstractpub_date
2015-09-01 00:00:00pages
884-92issue
7eissn
1467-7644issn
1467-7652journal_volume
13pub_type
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