Multiple Assemblies exist for SMTL entry 4xls
Crystal structure of T. aquaticus transcription initiation complex with CarD containing upstream fork promoter.; X-RAY DIFFRACTION 4.01 Å

	SMTL ID 4xls.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; CarD-like transcriptional regulator Oligo-state hetero-2-1-1-1-1-1-mer
	SMTL ID 4xls.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; CarD-like transcriptional regulator Oligo-state hetero-2-1-1-1-1-1-mer
	SMTL ID 4xls.3 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 4xls.4 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