Archaea were first classified as a separate group of prokaryotes in 1977 by Carl Woese and George E. Fox based on the differences in the sequence of ribosomal RNA (16S rRNA) genes.
DnaA is a replication initiation factor which promotes the unwinding or denaturation of DNA at oriC, during DNA replication in prokaryotes.
EzTaxon is a web-based tool for the identification of prokaryotes based on 16S ribosomal RNA gene sequences.
This enzyme manufactures glutamate from glutamine and α-ketoglutarate, and thus along with glutamine synthetase (abbreviated GS) plays a central role in the regulation of nitrogen assimilation in photosynthetic eukaryotes and prokaryotes.
Methanotroph -- Prokaryotes that are able to metabolize methane as their only source of carbon and energy.
For the sigma N-transcription factor activator protein in prokaryotes, see NtrC
Genes nested opposite the coding sequences of their host genes are very rare, and have been observed in prokaryotes, and more recently, in yeast (S. cerevisiae) and in Tetrahymena thermophila.
With Carl Woese Kandler proposed the change from the preceding view of living organisms as a Two-empire system of Prokaryotes and Eukaryotes to the Three-domain system of the domains Eukaryota, Bacteria and Archaea.
The RNA bases are ultimately replaced with DNA bases by RNase H nuclease (eukaryotes) or DNA polymerase I nuclease (prokaryotes).
Since 1997, Richard B. Hoover has published numerous papers in scientific conference proceedings and in peer-reviewed scientific journal articles and book chapters describing controversial evidence and claims for the existence of indigenous microfossils of cyanobacteria and other filamentous prokaryotes in the CI1 (Ivuna and Orgueil) and CM2 (Murchison and Murray) carbonaceous meteorites.
These two different types of thiolase are found both in eukaryotes and in prokaryotes: acetoacetyl-CoA thiolase (EC:2.3.1.9) and 3-ketoacyl-CoA thiolase (EC:2.3.1.16).