No Pfam abstract.
In eukaryotes, there are three different forms of DNA-dependent RNA polymerases (EC) transcribing different sets of genes. Each class of RNA polymerase is an assemblage of ten to twelve different polypeptides. In archaebacteria, there is generally a single form of RNA polymerase which also consists of an oligomeric assemblage of 10 to 13 polypeptides. Archaebacterial subunit N (gene rpoN) [PUBMED:7597027] is a small protein of about 8 kDa, it is evolutionary related [PUBMED:8045907] to a 8.3 kDa component shared by all three forms of eukaryotic RNA polymerases (gene Rpb10 in yeast and POLR2J in mammals) as well as to African swine fever virus (ASFV) protein CP80R [PUBMED:11831707].