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Curr Opin Biotechnol. 2004 Aug;15(4):323-9.

Ultra-high-throughput screening based on cell-surface display and fluorescence-activated cell sorting for the identification of novel biocatalysts.

Author information

1
Abteilung für Molekulare Genetik und Präparative Molekularbiologie, Institut für Mikrobiologie und Genetik, Georg-August-Universität Göttingen, Grisebachstrasse 8, D-37077 Göttingen, Germany.

Abstract

Enzyme libraries displayed on the surface of microbial cells or microbeads can be screened with fluorogenic substrates that provide a physical linkage of the reaction product to the corresponding enzyme. Libraries exceeding 10(9) different variants can be quantitatively analysed and screened by flow cytometry at a rate of 30 000 cells/second. The promise of screening methods based on fluorescence-activated cell sorting for directed enzyme evolution is being realized and significantly improved enzymes have been reported recently.

PMID:
15296929
DOI:
10.1016/j.copbio.2004.06.001
[Indexed for MEDLINE]

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