An easy pipeline for one-step purification of SARS-CoV-2 nucleocapsid protein from insect cell suspension culture.
An easy pipeline for one-step purification of SARS-CoV-2 nucleocapsid protein from insect cell suspension culture.
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DOI:
10.1016/j.jviromet.2021.114341
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发表时间:
2022-01
影响因子:
3.1
通讯作者:
Ribeiro BM
中科院分区:
文献类型:
--
作者:
de Camargo BR;da Silva LA;de Oliveira AS;Ribeiro BM
The COVID-19 pandemic has demanded a range of biotechnological products for detection of SARS-CoV-2 variants and evaluation of human seroconversion after infection or vaccination. In this work, we describe an easy pipeline for expression of SARS-CoV-2 nucleocapsid (N) protein in insect cells followed by its purification via affinity chromatography. The N gene was cloned into the genome of Autographa californica multiple nucleopolyhedrovirus (AcMNPV) via transposition and the resulting recombinant baculovirus was used for infection of lepidopteran Sf9 cells adapted to high-density suspension. Using Tris−HCl pH 8.0 buffer as mobile phase and eluting bound proteins with 175 mM imidazole as part of a three-step gradient, an average of 1 mg N protein could be purified from each 50 mg of total protein from clarified supernatant. Such protein amount allows the manufacturing of serological tests and the development of basic studies on cellular responses to SARS-CoV-2.
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发表时间:
2020-08-20
影响因子:
3.1
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DOI:
10.1016/b978-012253840-7/50013-4
发表时间:
1999-01-01
期刊:
GENE EXPRESSION SYSTEMS
影响因子:
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通讯作者:
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