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Yeast. 2005 Jan 15;22(1):1-12.

New modules for the repeated internal and N-terminal epitope tagging of genes in Saccharomyces cerevisiae.

Author information

1
Max-Delbrück Centrum für Molekulare Medizin, Robert-Rössle Str. 10, D-13092, Berlin, Germany.

Abstract

Epitope tagging is a powerful method for the rapid analysis of protein function. In Saccharomyces cerevisiae epitope tags are introduced easily into chromosomal loci by homologous recombination using a simple PCR-based strategy. Although quite a number of tools exist for C-terminal tagging as well as N-terminal tagging of proteins expressed by heterologous promoters, there are only very limited possibilities to tag proteins at the N-terminus and retain the endogenous expression level. Furthermore, no PCR-templates for internal tagging have been reported. Here we describe new modules that are suitable for both the repeated N-terminal and internal tagging of proteins, leaving their endogenous promoters intact. The tags include 6xHA, 9xMyc, yEGFP, TEV-GST-6xHIS, ProtA, TEV-ProtA and TEV-ProtA-7xHIS in conjunction with different heterologous selection markers.

PMID:
15565729
DOI:
10.1002/yea.1187
[Indexed for MEDLINE]
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