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Labeling of fusion proteins of O6-alkylguanine-DNA alkyltransferase with small molecules in vivo and in vitro



Labeling of fusion proteins of O6-alkylguanine-DNA alkyltransferase with small molecules in vivo and in vitro



Methods 32(4): 437-444



The in vivo and in vitro labeling of fusion proteins with synthetic molecules capable of probing and controlling protein function has the potential to become an important method in functional genomics and proteomics. We have recently introduced an approach for the specific labeling of fusion proteins, which is based on the generation of fusion proteins with the human DNA repair protein O6-alkylguanine-DNA alkyltransferase (hAGT) and the irreversible reaction of hAGT with O6-benzylguanine derivatives. Here, we report optimized protocols for the synthesis of O6-benzylguanine derivatives and the use of such derivatives for the labeling of different hAGT fusion proteins in vivo and in vitro.

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Accession: 012252783

Download citation: RISBibTeXText

PMID: 15003606

DOI: 10.1016/j.ymeth.2003.10.007


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