Reference

Search for REF=[3812].
3812
Pühler, G., Leffers, H., Gropp, F., Palm, P., Klenk, H.-P., Lottspeich, F., Garrett, R. A. and Zillig, W.
Archaebacterial DNA-dependent RNA polymerases testify to the evolution of the eukaryotic nuclear genome.
Proc. Natl. Acad. Sci. USA 86: 4569-4573, 1989.
PMID: 2499884.