Multiple Assemblies exist for SMTL entry 4xlq
Crystal structure of T.aquaticus transcription initiation complex containing upstream fork (-11 base-paired) promoter; X-RAY DIFFRACTION 4.60 Å

SMTL ID
4xlq.1
Ligands
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 SigA
Oligo-state
hetero-2-1-1-1-1-mer
SMTL ID
4xlq.2
Ligands
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 SigA
Oligo-state
hetero-2-1-1-1-1-mer