| P04050 | DB14511 | 3po2 | ACT | A | 1734 | e3po2A2 | helical domain in yeast RNA-polymerases | third helical domain in yeast RNA-polymerase II beta-prime subunit | third helical domain in yeast RNA-polymerase II beta-prime subunit | RNA_pol_Rpb1_6 |
| P04050 | DB14511 | 3po3 | ACT | A | 1734 | e3po3A7 | helical domain in yeast RNA-polymerases | third helical domain in yeast RNA-polymerase II beta-prime subunit | third helical domain in yeast RNA-polymerase II beta-prime subunit | RNA_pol_Rpb1_6 |
| P04050 | DB14511 | 3po3 | ACT | B | 1225 | e3po3A4 | N-terminal domain in RNA-polymerase beta-prime subunit | N-terminal domain in RNA-polymerase beta-prime subunit | N-terminal domain in RNA-polymerase beta-prime subunit | RNA_pol_Rpb1_1 |