Multiple Assemblies exist for SMTL entry 4yg2
X-ray crystal structur of Escherichia coli RNA polymerase sigma70 holoenzyme; X-RAY DIFFRACTION 3.70 Å

	SMTL ID 4yg2.1 Ligands MAGNESIUM ION; ZINC 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 4yg2.2 Ligands MAGNESIUM ION; ZINC 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