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Ebola virus VP35 induces high-level production of recombinant TPL-2-ABIN-2-NF-?B1 p105 complex in co-transfected HEK-293 cells.


ABSTRACT: Activation of PKR (double-stranded-RNA-dependent protein kinase) by DNA plasmids decreases translation, and limits the amount of recombinant protein produced by transiently transfected HEK (human embryonic kidney)-293 cells. Co-expression with Ebola virus VP35 (virus protein 35), which blocked plasmid activation of PKR, substantially increased production of recombinant TPL-2 (tumour progression locus 2)-ABIN-2 [A20-binding inhibitor of NF-?B (nuclear factor ?B) 2]-NF-?B1 p105 complex. VP35 also increased expression of other co-transfected proteins, suggesting that VP35 could be employed generally to boost recombinant protein production by HEK-293 cells.

SUBMITTER: Gantke T 

PROVIDER: S-EPMC3727213 | biostudies-literature | 2013 Jun

REPOSITORIES: biostudies-literature

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Ebola virus VP35 induces high-level production of recombinant TPL-2-ABIN-2-NF-κB1 p105 complex in co-transfected HEK-293 cells.

Gantke Thorsten T   Boussouf Sabrina S   Janzen Julia J   Morrice Nicholas A NA   Howell Steven S   Mühlberger Elke E   Ley Steven C SC  

The Biochemical journal 20130601 2


Activation of PKR (double-stranded-RNA-dependent protein kinase) by DNA plasmids decreases translation, and limits the amount of recombinant protein produced by transiently transfected HEK (human embryonic kidney)-293 cells. Co-expression with Ebola virus VP35 (virus protein 35), which blocked plasmid activation of PKR, substantially increased production of recombinant TPL-2 (tumour progression locus 2)-ABIN-2 [A20-binding inhibitor of NF-κB (nuclear factor κB) 2]-NF-κB1 p105 complex. VP35 also  ...[more]

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