Eukaryotic rna polymerases consist of many subunits The general Size No Features constitution of a KD Related to bactenal subunit R 200 eukaryotic rna binds dna has CTD =(YSPTSPS polymerase least n=26: mouse n=52 Related to bacterial subunit B enzyme 100 binds nucleotides astypitied in cerevisiae 50 2 Related to bacterial subunit o 2 Common to all 3 polymerases 25 Common to all 3 polymerases Common to all 3 polymerasesEukaryotic RNA polymerases consist of many subunits • The general constitution of a eukaryotic RNA polymerase II enzyme astypified in S. cerevisiae