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Center for Molecular Medicine and Genetics

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Center for Molecular Medicine and Genetics
Wayne State University School of Medicine
540 E. Canfield
Detroit, MI 48201


Functional Genomics

Progress and potential of Drosophila protein interaction maps


Clement A. Stanyon and Russell L. Finley Jr.


Published in Pharmacogenomics 1(4)


Protein-protein interactions mediate many important cellular processes and are central to the mechanisms by which most proteins function. Charting the interactions among the proteins involved in a process has been an essential step in characterising the function of proteins and pathways. The yeast two-hybrid system is one approach to detecting protein interactions that can now be scaled-up to systematically assay large sets of proteins such as those being identified from genome sequencing efforts. The system has already been extensively used to acquire data that has enabled construction of large protein interaction maps (PIMs). When combined with other data, including data being generated by other functional genomics approaches, PIMs help assign function to new proteins and delineate functional networks. Hypotheses generated in such a manner often must be tested by additional experimentation, preferably in vivo. The model organism Drosophila melanogaster has a wealth of genetic and bioinformatic tools available for such analyses. The proteome predicted from the recently sequenced Drosophila genome indicates that humans have more genes in common with Drosophila than with any other invertebrate model organism characterised to date. Thus, the construction and characterisation of Drosophila PIMs will help define the functions of many conserved genes and pathways and will provide the pharmaceutical research industry with invaluable data to assist with drug target identification and validation.


Protein interaction map; PIM; yeast two-hybrid; Drosophila; protein networks; functional genomics


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