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Biochem Soc Trans. 2010 Aug;38(4):875-8. doi: 10.1042/BST0380875.

Protein-protein interactions.

Author information

1
Department of Molecular Biology and Biotechnology, University of Sheffield, Firth Court, Western Bank, Sheffield S10 2TN, UK. m.williamson@sheffield.ac.uk

Abstract

In the present article, we describe the two standard high-throughput methods for identification of protein complexes: two-hybrid screens and TAP (tandem affinity purification) tagging. These methods have been used to characterize the interactome of Saccharomyces cerevisiae, showing that the majority of proteins are part of complexes, and that complexes typically consist of a core to which are bound 'party' and 'dater' proteins. Complexes typically are merely the sum of their parts. A particularly interesting type of complex is the metabolon, containing enzymes within the same metabolic pathway. There is reasonably good evidence that metabolons exist, but they have not been detected using high-thoughput assays, possibly because of their fragility.

PMID:
20658969
DOI:
10.1042/BST0380875
[Indexed for MEDLINE]
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