期刊
PROTEIN EXPRESSION AND PURIFICATION
卷 53, 期 2, 页码 283-288出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.pep.2007.01.001
关键词
tandem affinity purification; expression vector; yellow fluorescent protein; Dictyostelium discoideum; native protein complexes
类别
资金
- Biotechnology and Biological Sciences Research Council [BB/D013453/1] Funding Source: Medline
- Wellcome Trust [076618] Funding Source: Medline
- BBSRC [BB/D013453/1] Funding Source: UKRI
- Biotechnology and Biological Sciences Research Council [BB/D013453/1] Funding Source: researchfish
We constructed a series of expression vectors for purification of native proteins and protein complexes in Dictyostelium. Protein purification is achieved by either a C-terminal or N-terminal fusion of the protein of choice to the tandem affinity purification (TAP) tag. The TAP tag consists of a protein A tag and a calmodulin binding peptide (CBP) and has been successfully used for purification of native protein complexes from yeast and animal cells. Protein expression is driven by the constitutive actin 15 promoter and the vectors optionally carry additional green- or yellow fluorescent protein (GFP or YFP) tags for fusion at either a G or N-terminal location. Tandem affinity purification of native Dictyostelium protein complexes was tested by using pArc-34, one of the members of the well characterized Dictyostelium Arp2/3 complex, as bait. After denaturation and SDS-PAGE separation of the pArc-34 associated proteins all members of the Arp2/3 complex could be identified. (C) 2007 Elsevier Inc. All rights reserved.
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