
Archaeal RNA polymerase
Archaeal RNA polymerase is an enzyme found in archaea, one of the three domains of life, alongside bacteria and eukaryotes. Its primary role is to synthesize RNA from DNA, a crucial step in gene expression. Archaeal RNA polymerase is structurally similar to eukaryotic RNA polymerase, indicating a closer evolutionary relationship than to bacterial RNA polymerase. This enzyme plays a vital role in converting genetic information into proteins, helping archaea adapt and thrive in diverse environments, from extreme heat to saltiness, showcasing their unique evolutionary adaptations.