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)

Gene cluster rpoBC1C2 in cyanobacteria does not constitute an operon.

The core enzyme of the cyanobacterial DNA-dependent RNA polymerase contains a unique component, gamma, which is absent from the corresponding enzymes of other eubacteria. In the heterocystous cyanobacterium Nostoc commune the gene encoding gamma, rpoC1, is immediately adjacent to, and downstream of, rpoB. The rpoC1 gene, and a 3' adjacent gene, rpoC2, correspond to the single rpoC gene found in Escherichia coli with respect to those domains conserved within their translational products. Northern analysis and primer extension assay show that in N. commune, rpoC1 and rpoC2 are transcribed separately from rpoB. The promoter of rpoC1C2 can direct the expression of a promotorless lacZ gene in E. coli. As a consequence, cyanobacterial rpo gene expression is distinct from the mode of cotranscription described for the equivalent sequences found in other eubacteria, archaebacteria, and plant chloroplasts. Also in this paper, a simple protocol for RNA isolation, which should be applicable for RNA isolation from plant cells, is presented.[1]


  1. Gene cluster rpoBC1C2 in cyanobacteria does not constitute an operon. Xie, W.Q., Potts, M. Arch. Biochem. Biophys. (1991) [Pubmed]
WikiGenes - Universities