Multiple Assemblies exist for SMTL entry 4c2m
Structure of RNA polymerase I at 2.8 A resolution; X-RAY DIFFRACTION 2.80 Å

SMTL ID 4c2m.1 Ligands ZINC ION; SULFATE ION Polypeptides DNA-DIRECTED RNA POLYMERASE I SUBUNIT RPA190; DNA-DIRECTED RNA POLYMERASE I SUBUNIT RPA135; DNA-DIRECTED RNA POLYMERASES I AND III SUBUNIT RPAC1; DNA-DIRECTED RNA POLYMERASE I SUBUNIT RPA14; DNA-DIRECTED RNA POLYMERASES I, II, AND III SUBUNIT RPABC 1; DNA-DIRECTED RNA POLYMERASES I, II, AND III SUBUNIT RPABC 2; DNA-DIRECTED RNA POLYMERASE I SUBUNIT RPA43; DNA-DIRECTED RNA POLYMERASES I, II, AND III SUBUNIT RPABC 3; DNA-DIRECTED RNA POLYMERASE I SUBUNIT RPA12; DNA-DIRECTED RNA POLYMERASES I, II, AND III SUBUNIT RPABC 5; DNA-DIRECTED RNA POLYMERASES I AND III SUBUNIT RPAC2; DNA-DIRECTED RNA POLYMERASES I, II, AND III SUBUNIT RPABC 4; DNA-DIRECTED RNA POLYMERASE I SUBUNIT RPA49; DNA-DIRECTED RNA POLYMERASE I SUBUNIT RPA34 Oligo-state hetero-oligomer

SMTL ID 4c2m.2 Ligands ZINC ION; SULFATE ION Polypeptides DNA-DIRECTED RNA POLYMERASES I, II, AND III SUBUNIT RPABC 4; DNA-DIRECTED RNA POLYMERASE I SUBUNIT RPA49; DNA-DIRECTED RNA POLYMERASE I SUBUNIT RPA34; DNA-DIRECTED RNA POLYMERASE I SUBUNIT RPA43; DNA-DIRECTED RNA POLYMERASE I SUBUNIT RPA190; DNA-DIRECTED RNA POLYMERASE I SUBUNIT RPA135; DNA-DIRECTED RNA POLYMERASES I AND III SUBUNIT RPAC1; DNA-DIRECTED RNA POLYMERASE I SUBUNIT RPA14; DNA-DIRECTED RNA POLYMERASES I, II, AND III SUBUNIT RPABC 1; DNA-DIRECTED RNA POLYMERASES I, II, AND III SUBUNIT RPABC 2; DNA-DIRECTED RNA POLYMERASES I, II, AND III SUBUNIT RPABC 3; DNA-DIRECTED RNA POLYMERASE I SUBUNIT RPA12; DNA-DIRECTED RNA POLYMERASES I, II, AND III SUBUNIT RPABC 5; DNA-DIRECTED RNA POLYMERASES I AND III SUBUNIT RPAC2 Oligo-state hetero-oligomer