Table 1.

Sequences used in phylogenetic analysis

RPB1	GenBank accession number
Acanthamoeba castellanii	;;LEFT>U90211
Arabidopsis thaliana	;;LEFT>P31635
Caenorhabditis elegans	;;LEFT>P16356
Drosophila melanogaster	;;LEFT>P04052
Giardia lamblia	∗
Homo sapiens	;;LEFT>X63564
Plasmodium falciparum	;;LEFT>P14248
Porphyra yezoensis	;;LEFT>U90208
Saccharomyces cerevisiae	;;LEFT>P04050
Schizosaccharomyces pombe	;;LEFT>P36594
Spirogyra sp.	;;LEFT>U90210
Bonnemaisonia hamifera	;;LEFT>U90209
Trichomonas vaginalis	;;LEFT>U20501
Trypanosoma brucei	;;LEFT>P17545
RPC1 S. cerevisiae	;;LEFT>P04051

^*, Sequence from H.-P. Klenk.