期刊
MOLECULAR & CELLULAR PROTEOMICS
卷 4, 期 11, 页码 1647-1652出版社
AMER SOC BIOCHEMISTRY MOLECULAR BIOLOGY INC
DOI: 10.1074/mcp.M500128-MCP200
关键词
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资金
- Intramural NIH HHS Funding Source: Medline
- NCI NIH HHS [N01-CO-12400] Funding Source: Medline
We have developed a pooled ORF expression technology, POET, that uses recombinational cloning and proteomic methods (two-dimensional gel electrophoresis and mass spectrometry) to identify ORFs that when expressed are likely to yield high levels of soluble, purified protein. Because the method works on pools of ORFs, the procedures needed to subclone, express, purify, and assay protein expression for hundreds of clones are greatly simplified. Small scale expression and purification of 12 positive clones identified by POET from a pool of 688 Caenorhabditis elegans ORFs expressed in Escherichia coli yielded on average 6 times as much protein as 12 negative clones. Larger scale expression and purification of six of the positive clones yielded 47-374 mg of purified protein/liter. Using POET, pools of ORFs can be constructed, and the pools of the resulting proteins can be analyzed and manipulated to rapidly acquire information about the attributes of hundreds of proteins simultaneously.
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