Operons are common in bacteria, butthey are rare in eukaryotes such as humans. ... In general, an operon will contain genes that function in the same process. For instance, a well-studied operon called the lac operon contains genes that encode proteins involved in uptake and metabolism of ...
Results We present a detailed analysis of Argonaute-PIWI protein sequences and the genomic neighborhoods of the respective genes in prokaryotes. Whereas eukaryotic Ago/PIWI proteins always contain PAZ (oligonucleotide binding) and PIWI (active or inactivated nuclease) domains, the prokaryotic Argonaute ...
In eukaryotes, changes in rRNA modification patterns were recently demonstrated for cancer cells as a conse- quence of p53 inactivation20. In turn, changes in rRNA modification lead to altered efficiency of cap- and IRES dependent translation in eukaryotes21. Thus, rRNA modifications – which ...
Chaperonins occur in two main classes: Group I chaperonins, which comprise GroEL and its co-chaperonin GroES that function as a complex and are generally found in Bacteria and eukaryotic organelles, and Group II chaperonins that are found in Archaea (thermosomes) and Eukaryotes (TRiC/ CCT) (...
It appears that such examples are not uncommon in both bacteria and eukaryotes [13]. Additional examples in bacteria include IS5 activation of the fucose AO (fucAO) operon in E. coli [14], furazolidone sensitivity A and B (nfsA and nfsB) inactivation by IS elements, also in E. coli ...