Table 1.
Shared subunits of yeast RNA polymerases.
| Subunit | Gene | Calculatedmass | Chromosomal location | pl | Particularities |
|---|---|---|---|---|---|
| ABC27 | RPB5 | 25 | II | 10.2 | Two copies |
| ABC23 | RPB6 | 18 | XVI | 5.2 | Phosphorylated |
| ABC14.5 | RPB8 | 17 | XV | 4.3 | |
| ABC10α | RPC10 | 7.7 | VIII | 10.1 | Zinc binding; N-terminus blocked |
| ABC10β | RPB10 | 5.4 | XV | 9.6 | Zinc binding |
| AC40 | RPC40 | 38 | XVI | 5.6 | Related to α |
| AC19 | RPCI9 | 16 | II | 4.5 | Related to α; phosphorylated |
References for gene cloning are: ABC27, ABC23 and ABC14.5, Woychik et al., 1990; ABC10α, this work; ABC10β, Woychik and Young, 1990; AC40, Mann et al., 1987; AC19, Dequard-Chablat et al., 1991.