Abstract
Flow cytometry (FCM) in conjunction with immunocytochemical-labeling was used to analyze and screen a population of Escherichia coli clones containing a genomic library from the oil-degrading microorganism Acinetobacter calcoaceticus RAG-1 for the isolation of clones which expressed specific RAG-1 surface antigens. Reconstruction experiments using mixed populations indicated that RAG-1 cells could be clearly distinguished at a ratio of one RAG-1 cell to 500 Escherichia coli cells. Using this technique two clones, WM143 and WM191, were isolated and shown by restriction endonuclease cleavage and Southern hybridization to contain plasmids carrying inserts of RAG-1 DNA of 9.4 and 9.8 kb respectively.
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Abbreviations
- FCM:
-
flow cytometry
- FITC:
-
fluorescein-iso-thiocyanate
- LB:
-
Luria broth
- MM:
-
minimal salt medium
- PBS:
-
phosphate buffered saline
- PMSF:
-
phenylmethylsulfonyl fluoride
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Minas, W., Sahar, E. & Gutnick, D. Flow cytometric screening and isolation of Escherichia coli clones which express surface antigens of the oil-degrading microorganism Acinetobacter calcoaceticus RAG-1. Arch. Microbiol. 150, 432–437 (1988). https://doi.org/10.1007/BF00422282
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DOI: https://doi.org/10.1007/BF00422282