The world's first wiki where authorship really matters (Nature Genetics, 2008). Due credit and reputation for authors. Imagine a global collaborative knowledge base for original thoughts. Search thousands of articles and collaborate with scientists around the globe.

wikigene or wiki gene protein drug chemical gene disease author authorship tracking collaborative publishing evolutionary knowledge reputation system wiki2.0 global collaboration genes proteins drugs chemicals diseases compound
Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

Expression of the gene for ornithine decarboxylase of Saccharomyces cerevisiae in Escherichia coli.

Diploid cells of Saccharomyces cerevisiae homozygous for the spe1A mutation, which eliminates ornithine decarboxylase activity, were found to sporulate at a greatly reduced frequency in the absence of polyamines. Plasmids which complement the spe1A mutation were isolated by their ability to restore sporulation competence to these cells. Three distinct plasmids were isolated. Each plasmid insert overlapped the same 8.0-kilobase region, and each plasmid restored ornithine decarboxylase activity to spe1A mutants. These plasmids also conferred ornithine decarboxylase activity to Escherichia coli EWH319 from which the ornithine decarboxylase gene is deleted. The plasmid-encoded activity expressed in E. coli resembled S. cerevisiae ornithine decarboxylase in its kinetic characteristics, indicating that the yeast ornithine decarboxylase gene was cloned. Southern blot analysis suggested that ornithine decarboxylase is a single-copy gene in S. cerevisiae. A single 2.1-kilobase transcript was demonstrated by Northern blot analysis.[1]

References

 
WikiGenes - Universities