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Gene. 1999 Feb 4;227(1):101-10.

GFP vectors for controlled expression and dual labelling of protein fusions in Bacillus subtilis.

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Sir William Dunn School of Pathology, University of Oxford, South Parks Road, Oxford OX1 3RE, UK.


We report the development of a series of plasmid vectors for the construction of fusions to mutants of the intrinsically fluorescent green fluorescent protein, GFPmut1 (Cormack et al., 1996. Gene 173, 33-38) and GFPuv (Crameri et al., 1996. Nature Biotechnology 14, 315-319). Both N- and C-terminal fusions can be produced, and their expression can be finely controlled from the inducible Pxyl promoter following double crossover integration into the amyE locus of the Bacillus subtilis chromosome. Other vectors designed for single crossover insertion into the chromosome allow downstream genes to be placed under inducible control. We also show that fusions to GFPmut1 and GFPuv can be co-localized within the cell by virtue of their different excitation spectra.

[Indexed for MEDLINE]

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