Multiple Assemblies exist for SMTL entry 2b76
E. coli Quinol fumarate reductase FrdA E49Q mutation; X-RAY DIFFRACTION 3.30 Å

	SMTL ID 2b76.1 Ligands CITRATE ANION; FLAVIN-ADENINE DINUCLEOTIDE; FE2/S2 (INORGANIC) CLUSTER; FE3-S4 CLUSTER; IRON/SULFUR CLUSTER; MENAQUINONE-7 Polypeptides Fumarate reductase flavoprotein subunit; Fumarate reductase iron-sulfur protein; Fumarate reductase subunit C; Fumarate reductase subunit D Oligo-state hetero-1-1-1-1-mer
	SMTL ID 2b76.2 Ligands CITRATE ANION; FLAVIN-ADENINE DINUCLEOTIDE; FE2/S2 (INORGANIC) CLUSTER; FE3-S4 CLUSTER; IRON/SULFUR CLUSTER; MENAQUINONE-7 Polypeptides Fumarate reductase flavoprotein subunit; Fumarate reductase iron-sulfur protein; Fumarate reductase subunit C; Fumarate reductase subunit D Oligo-state hetero-1-1-1-1-mer