Multiple Assemblies exist for SMTL entry 4ylp
E. coli Transcription Initiation Complex - 16-bp spacer and 5-nt RNA; X-RAY DIFFRACTION 5.50 Å

	SMTL ID 4ylp.1 Ligands RNA (5'-R(*(GTP))-R(P*AP*GP*UP*C)-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-2-1-1-1-1-mer
	SMTL ID 4ylp.2 Ligands RNA (5'-R(*(GTP))-R(P*AP*GP*UP*C)-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-2-1-1-1-1-mer
	SMTL ID 4ylp.3 Ligands RNA (5'-R(*(GTP))-R(P*AP*GP*UP*C)-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-2-1-1-1-1-mer