EcoExpress-Highly Efficient Construction and Expression of Multicomponent Protein Complexes in Escherichia coli.
ACS Synth Biol
; 5(11): 1239-1246, 2016 11 18.
Article
em En
| MEDLINE
| ID: mdl-27345099
ABSTRACT
The bacterium Escherichia coli remains the leading host for protein expression in large quantity for the purpose of crystallization or other biochemical studies. However, expression of multicomponent protein complexes remains a challenge, and is often laborious and time-consuming. Here we developed a method named EcoExpress, which allows efficient construction of plasmids to express individual protein with user-defined epitope-tag, followed by one-pot assembly of a single vector to express the entire protein complex for copurification. A versatile set of vectors was designed to provide various choices to control the expression of a protein with different promoters, and to accept different number of components for coexpression. Using EcoExpress, we demonstrated that each subunit within a protein complex could be expressed individually or simultaneously, and the entire complex could be copurified. In addition, to overcome the decreased assembly efficiency with the increasing number of components, a novel oligonucleotides blocking method was designed and tested. EcoExpress provides the scientific community with a toolbox to rapidly investigate the function of protein complexes.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Regulação Bacteriana da Expressão Gênica
/
Complexos Multiproteicos
/
Escherichia coli
Idioma:
En
Revista:
ACS Synth Biol
Ano de publicação:
2016
Tipo de documento:
Article
País de afiliação:
China