The carnegie protein trap library: A versatile tool for drosophila developmental studies

Michael Buszczak, Shelley Paterno, Daniel Lighthouse, Julia Bachman, Jamie Planck, Stephenie Owen, Andrew D. Skora, Todd G. Nystul, Benjamin Ohlstein, Anna Allen, James E. Wilhelm, Terence D. Murphy, Robert W. Levis, Erika Matunis, Nahathai Srivali, Roger A. Hoskins, Allan C. Spradling

Research output: Contribution to journalArticlepeer-review

421 Scopus citations


Metazoan physiology depends on intricate patterns of gene expression that remain poorly known. Using transposon mutagenesis in Drosophila, we constructed a library of 7404 protein trap and enhancer trap lines, the Carnegie collection, to facilitate gene expression mapping at single-cell resolution. By sequencing the genomic insertion sites, determining splicing patterns downstream of the enhanced green fluorescent protein (EGFP) exon, and analyzing expression patterns in the ovary and salivary gland, we found that 600-900 different genes are trapped in our collection. A core set of 244 lines trapped different identifiable protein isoforms, while insertions likely to act as GFP-enhancer traps were found in 256 additional genes. At least 8 novel genes were also identified. Our results demonstrate that the Carnegie collection will be useful as a discovery tool in diverse areas of cell and developmental biology and suggest new strategies for greatly increasing the coverage of the Drosophila proteome with protein trap insertions.

Original languageEnglish (US)
Pages (from-to)1505-1531
Number of pages27
Issue number3
StatePublished - Mar 2007

ASJC Scopus subject areas

  • Medicine(all)


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