Multiple Assemblies exist for SMTL entry 4yln
E. coli Transcription Initiation Complex - 17-bp spacer and 4-nt RNA; X-RAY DIFFRACTION 5.50 Å

SMTL ID
4yln.1
Ligands
RNA (5'-D(*(GTP))-R(P*AP*GP*U)-3'); ZINC ION; MAGNESIUM ION
Polypeptides
DNA-directed RNA polymerase subunit alpha; DNA-directed RNA polymerase subunit beta; DNA-directed RNA polymerase subunit beta'; DNA-directed RNA polymerase subunit omega; RNA polymerase sigma factor RpoD
Oligo-state
hetero-oligomer
SMTL ID
4yln.2
Ligands
RNA (5'-D(*(GTP))-R(P*AP*GP*U)-3'); ZINC ION; MAGNESIUM ION
Polypeptides
DNA-directed RNA polymerase subunit alpha; DNA-directed RNA polymerase subunit beta; DNA-directed RNA polymerase subunit beta'; DNA-directed RNA polymerase subunit omega; RNA polymerase sigma factor RpoD
Oligo-state
hetero-oligomer
SMTL ID
4yln.3
Ligands
RNA (5'-D(*(GTP))-R(P*AP*GP*U)-3'); ZINC ION; MAGNESIUM ION
Polypeptides
DNA-directed RNA polymerase subunit alpha; DNA-directed RNA polymerase subunit beta; DNA-directed RNA polymerase subunit beta'; DNA-directed RNA polymerase subunit omega; RNA polymerase sigma factor RpoD
Oligo-state
hetero-oligomer