| 2NVQ | K: | RNA POLYMERASE II ELONGATION COMPLEX IN 150 MM MG+2 WITH 2'DUTP |
| 3CQZ | K: | CRYSTAL STRUCTURE OF 10 SUBUNIT RNA POLYMERASE II IN COMPLEX WITH THE INHIBITOR ALPHA-AMANITIN |
| 3M3Y | K: | RNA POLYMERASE II ELONGATION COMPLEX C |
| 3S1M | K: | RNA POLYMERASE II INITIATION COMPLEX WITH A 5-NT RNA (VARIANT 1) |
| 3S1N | K: | RNA POLYMERASE II INITIATION COMPLEX WITH A 5-NT RNA (VARIANT 2) |