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Making sense of a gene fusion event in Proteobacteria. Dawn Anderson (Berea College) Rob Barber (U of Wisconsin Parkside) Teresa Johnson (College of Wooster). A promiscuous protein domain (and coding region). The GAT-1 family is comprised of proteins containing a Type-1 glutamine
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Making sense of a gene fusion event in Proteobacteria Dawn Anderson (Berea College) Rob Barber (U of Wisconsin Parkside) Teresa Johnson (College of Wooster)
A promiscuous protein domain (and coding region) The GAT-1 family is comprised of proteins containing a Type-1 glutamine amidotransferase-like domain. Proteins in this family display an alpha/beta hydrolase fold with a nucleophilic elbow. This transferase-like domain can be present alone or as a fusion with several other protein domains. A fusion between this domain and an AraC DNA binding domain has been found in prokaryotes.
Domain fusion to ArgF DNA binding domain restricted to Proteobacteria
Gene associations/neighborhoods offer little functional inference
Approaches to test gene product function • Clone gene, express and purify predicted gene product (trying heparin chromatography) • Structure determination and model building exercises • Gene expression experiments possible (microarrays, proteomics) but likely offer little insight due to prediction of regulatory role
FusionDB offered little insight regarding this protein family